Vincent SA-T7 MK Tube Stereo Preamplifier Instructions

Vincent SA-T7 MK Tube Stereo Preamplifier

Dear Customer,
we thank you for the confidence you prove in purchasing our product. It will match your high demands towards sound and manufacturing quality. Though it is understandable that you want to plug and play this product instantaneously, we encourage you to read this manual carefully before installation.
It will help you in handling and operating this machine in your system and obtaining the best possible performance, even if it was installed by your dealer.
Please follow the security precautions, though some of those things may seem obvious.
In the appendix to this manual you will find a glossary explaining some established technical terms.
If there are open questions your audio specialist dealer will help you. He also represents your contact person in case of needed warranty service or repairs after the warranty period and is interested to hear from your experiences with Vincent products.
We wish you plenty of joy with your / our product, your Vincent-Team

SAFETY GUIDELINES
This appliance was produced under strict quality controls.
It complies with all established international safety standards. Nonetheless, the following instructions should be fully read and observed in order to prevent any hazard:
Do not open the appliance! Risk of electric shock!
There are no parts in the appliance that require maintenance by the user.

Maintenance/Alterations
All equipment that is connected to the domestic mains voltage can be dangerous to the user if not handled properly. Leave maintenance work to qualified professionals. The product is only permitted for connection to AC 230Volt/50Hz, for earthed sockets and use in enclosed areas. Altering the product or manipulating its serial number voids the warranty. After a fault, leave the appliance’s fuse to be replaced only by a professional with one of the same kind.

Power Cable Connection
Always pull the plug and never the power cable if you want to disconnect the appliance from the mains power. Make sure when setting up the appliance that the power cable is not squashed, severely bent or damaged by sharp edges. Do not touch the power lead with wet or damp hands. Use the power cable supplied or another one from Vincent.

Switching Off
Switch the appliance off every time before you connect or remove other components or loudspeakers, disconnect or connect it to the mains power, leave it unused for a longer period or want to clean its outside. On all amplifiers and receivers, wait approx. 1 minute after this before disconnecting or reconnecting the cable.

Moisture/Heat/Vibration
Contact of electrically operated equipment with li-quids, moisture, rain or water vapour is dangerous for such equipment and the user and must be avoided without fail. Take care that no liquids or ob-jects get inside the appliance (ventilation slots etc.). It must be disconnected from the mains power im- mediately and examined by a professional if this happens. Never expose the appliance to high temperatures direct sunshine or strong vibration.

Heat Build-up
Make sure that a gap of 5 cm remains around the appliance and that the surrounding air can circulate (do not install in enclosed cupboards). Vents must not be covered up.

Volume
The maximum tolerable volume is always rea-ched well below the maximum possible setting on the amplifier. Be careful with the volume setting, therefore, in order to prevent damage to hearing. So that you do not expose yourself to high volumes unintentionally, always set to a low level before changing the input channel.

Cleaning
Pull out the power plug before cleaning the outside of the product. Whenever possible, use a soft, lint-free cloth that has been dampened. Do not use abrasives, solvents, thinners, flammable chemicals, polishes and other cleaning products that leave marks.

Batteries
Take note of the instructions for using batteries in the chapter „Remote Control“.

OTHER INSTRUCTIONS

Setting up the appliance
How the system is set up has an effect on the sound quality. Therefore only place it on a suitable, stable surface. To make the most of your system’s sound quality, we recommend placing the equipment on racks and not putting them on top of each other.

Old electronic equipment
This appliance is subject to the conditions
set out in the European Directive 2012/19/EC. This is identified by the symbol of a crossed out waste bin on the appliance.

What this means for you as a consumer:
All old electrical and electronic equipment that is no longer used must be disposed of separately from domestic waste using places provided by the authorities. By doing so you can prevent damage to the environment and help to encourage manufacturers to produce more durable or reusable products. For further information about disposing your old appliance, please consult your local authority, waste disposal agency or the shop where you bought the product.

CE sign
This appliance complies with the current
EU directives about attaining the CE mark and thus meets the requirements for electrical and electronic equipment (EMC regulations, safety regulations and regulations for low voltage equipment).

Declarations
This document is a product of Sintron Distribution GmbH, 76473 Iffezheim and may not be copied or distributed partly or in full without express, written consent. Vincent is a registered trademark of Sintron Distribution GmbH, 76473 Iffezheim.
Vincent works continually to improve and develop its products. Therefore, the appearance and technical design of the appliance are subject to changes, as long as they are in the interest of progress. The content of these instructions is for information purposes only. It can be changed at any time without prior notice and does not constitute any obligation on the part of the trademark’s owner. The latter assumes no responsibility or liability for errors or inaccuracies, which may be included in these operating instructions.
Storage of the packaging
We strongly recommend that you keep the original packaging in case you need to transport the equipment again at a later date. Transport damages are mainly caused by improper packaging of the HiFidevices. Because the original packaging fits the equipment accurately it will reduce the risk of damage if transport is necessary.

Explanation of the symbols

The lightening bolt tells you that dangerous voltages are present in the appliance, which can cause an electric shock.
This symbol brings your attention to particularly important information regarding operation and maintenance.
This symbol identifies useful information and advice about how to handle the appliance.

INCLUDED IN DELIVERY
Please check the contents of the packaging, which in addition to the appliance should contain the following accessories:

• 1 power cable
• 1 remote control “VRC-13”
• 1 cable for the POWER CONTROL
• 1 Stereo RCA Cable
• 1 Toslink optical cable
• 1 Bluetooth Antenna
• this manual

DESCRIPTION OF THE APPLIANCE

Standard, classic circuit technology does not fully exploit the potential of a valve. With the SA-T7MK we have developed a preamplifier that raises the pure amplification of valuable music signals to a level never conceived of before with valves. Thanks to the developed BestPentode circuit (developed by chartered engineer Frank Blöhbaum), the current distribution noise typical of pentodes is now a thing of the past.
Innovation at a fair price. Developed and produced in Germany.
Transfer qualities of amplifiers are currently being challenged by modern signal sources. Traditional (classical) technology and ECC81/82/83/88 does not cover the full potential of tube technology.
We developed a Vincent pre-amplifier SA-T7MK that increases pure amplifying of precious audio signals with tubing on a level never realised before. This is made possible by a patented circuit technology: A new BestPentode circuit developed by Dipl-Ing (Master of Engineering) Frank Blöhbaum eliminates those for pentodes typical electrical current noises. The BestPentode device has got a higher level of amplifying small noise than other triodes. The high-level grid pentodes type E180F / 6SCH9P / 6SCH51P display their whole potential. The tubes are a new old stock (NOS) from storage that was used for amplifying high-frequency signals 24/7 in telecommunication.

The impedance converter consists of a grid triod. The noiseless power supply connectors of the Best-Pentode device provides for an extremely pure audio transmission. We developed our own module called Vimala (the meaning in Sanskrit is „pure, transparent and clear“) for this purpose.
You can adjust your individual listening habits with an additional gainblock 6SCH9P, 6SCH51P and Vimala module that controls precisely treble and bass sounds. It can be deactivated optionally. This extremely low output resistor of modern amplifier technology (just 1 Ohm) makes amplifier outputs with only resistive characteristics possible. A steady transmission over the general frequency range and lossless controlling of sensitive connector cables is therefore secured. Two separate output resistors (50 and 600 Ohm) are provided for easy connections.
Thanks to the BestPentode circuit technology newly manufactured in series with exquisite Vimala power supply pairing, a highly linear amplifying with almost no noise and super speed is created for an exceptional music listening experience. We at Vincent are very proud of our SA-T7MK because it is the peak of many years’ experience in constructing innovative tube amplifiers. Innovation to fair prices that is developed and finally assembled in Germany

FRONT VIEW

1. TREBLE
   Knob for setting the treble proportions (high frequencies) of the sound. The middle position keeps the high tones unchanged.

2. POWER
   This is the main power switch for turning on and off the device. The preamplifier is separated from the mains voltage when switched off and cannot be set into a standby state.

3. BASS
   Knob for setting the bass proportions (low frequencies) of the sound. The middle position keeps the bass unchanged.

4. TONE
   If deactivated, audio signals bypass the tone control that has been set with the BASS and TREBLE dials.

5. Display window for the tube

6. SR: sensor diode for the remote control

7.   INPUT: Input Selector
   This dial allows you to choose one of the six inputs. The LED that is actually lit shows you what input channel has been selected. Additionally these LEDs show that the appliance is switched on.

8. Analog/Digital
   Button to choose between analog and digital inputs. For further information see page 38.

9. VOLUME: Volume dial
   This is the knob for the adjustment of the main volume level of the system. The LED in this dial is blinking for some seconds while after switching on the tubes are being warmed up or while the preamplifier is muted.

10. LOUD: MUTE
    Press this button to mute your system’s loudspeakers as an effect of muting the signals of the preamplifier output “OUTPUT” (15) and the recording output “REC OUTPUT” (12). After pressing this button again the original volume level is being restored.

REAR VIEW

• 11. INPUT: input connectors
  Here you find six stereo RCA inputs for the source equipment with analogue stereo (line level) audio output.

• 12. OUTPUT REC: recording output
  If desired, you can connect a recording device like a CD recorder or a tape recorder to this output. The stereo signal of this output is identical to the output signal of the selected audio source at one of the preamplifier INPUTs. As long as the preamplifier is muted (10)(21), the output “OUTPUT REC” does not provide the music signal.

• 13. DIGITAL IN: Optical/Coaxial Connections for audio signals of source devices with digital sound such as, for example, DVD players. “Optical” for optical fiberconnection and “Coaxial” for connection via coaxial cable.

• 14. BT ANT
  Connection for the Bluetooth antenna. Please connect the antenna here, if you want to use the Bluetooth function.

• 15. OUTPUT: preamplifier outputs
  With these two pairs of connectors you can connect the pre amplified stereo audio signal of the currently selected source to the power amplifier channels. The volume and mute settings have effect on the signal at this output.
  Output 1 has a source impedance of 600 Ohm, Output 2 a source impedance of 50 Ohm. Generally, both outputs can be used for devices with input impedances from 10 kOhm onwards evenly, e.g. for biamping. Output 1 is ideal for the connection of high end or studio amplifiers with transfer input.

• 16. LAMP: Dimmer for the tube illumination The setting of this switch affects the brightness of the illumination of the tube display window (5).

• 17. POWER CONTROL (12V)
  These jack connectors (3.5 mm) send the signals for the standby control (12V Trigger).

• 18. Voltage Selector:
  The voltage selector behind the pane allows switching the voltage from 230 V to 110 V. Refer to safety instructions for further information (p. 36, “Switching the Voltage”)

• 19. Power Connector
  To establish the power supply, connect the plugs of the power cable to the device and to a suitable wall outlet.

• 20. AUTO: Automatic shutdown in terms of eco design regulation
  If the unit is in non-use, this device switches off after about 15 minutes. It will then have a power consumption of less than 0.4 W. In order to switch on the device again, press the power button 1 time. This function could be completely switched off by putting the switch „Auto“ at the backside of the unit to „Off“. This device has got no standby or armed state. If you intend not to use the device for a longer period of time it is recommended to plug it off from the mains.

REMOTE CONTROL

Point the front of the remote control directly at the front of the appliance, making sure there are no objects between the remote control and the appliance.
The distance between the remote control and the appliance should not be more than 7 m, as the reliability of the remote control is affected beyond this range.

Make sure that you do not point the remote control at an angle to the appliance, as beyond an angle of ±30° to the center axis the appliance may not respond as well to the remote control.
Change the battery if the distance at which the remote control can be used effectively decreases.

BATTERIES

Using battery
Handling batteries incorrectly can cause battery acid to escape or an explosion in extreme cases. The batteries must be correctly inserted taking note of the polarity, which is marked in the inside of the battery compartment.
In order to make full use of the batteries’ life, do not mix new and used batteries. Make sure that you insert batteries of the same type.
Some batteries are rechargeable, others are not however. Take note of the precautions and instructions that are included on all batteries.
Remove the batteries if the remote control is not going to be used for a long time.
Under no circumstances must batteries be short- circuited, taken apart or heated up.
For environmental reasons, used batteries should be disposed of in accordance with local environmental regulations and not put with domestic waste.
The remote control for this item utilizes Lithium button cells. In case of old appliance disposal put out this battery and dispose separately!

1. Open the battery compartment of the remote control by pushing out the clip and pulling out the battery compartment.
2. Remove the optionally used battery and correctly insert the new button cell, as schematically shown in the battery compartment.
3. Close the battery compartment of the remote control.

BUTTONS OF THE REMOTE CONTROL

• 21. MUTE
  Pressing this button once mutes the speakers, the recording output (12) and the preamplifier output (15). Pressing it again returns to the original volume.

• 22. Input selector buttons
  Select the input source you want to listen to with these buttons.

• 23. VOLUME and VOLUME
  These buttons change the amplifier’s volume.

INSTALLATION

Set up the cable links in a sequence as follows. Connect the power cable between de-vice and power supply only after all other connections have been made.

DURING INSTALLATION PLEASE OBSERVE
THE FOLLOWING ADVICE:

Protective caps
Prior to the first installation the protective plastic caps must be removed from all the connections used at the rear of the unit.

RCA connections
Mechanically identical RCA plugs are available for input and output connections. Make sure that you do not get these connections confused during installation!

Make sure that you do not mix up the analogue inputs for right and left. The RCA plugs for these are mostly color coded as follows: red for the right channel, black or white for the left channel.

Contacting the middle pin of the RCA plugs with the outer ring of the RCA chassis jack may lead to damages to the main amplifier if it is switched on! To avoid this hazard, connect or disconnect only in switched-off state and more than one minute after deactivating!

Cable connections
Make sure that all plugs fit tightly. Inadequate connections can cause noise interference, failures and malfunctions.

To make the most of the components’ sound potential, only high quality loudspeakers and connecting cables, for example Vincent cables, should be used. Your local dealer will be glad to advise you about this.

CONNECTION OF THE SOURCE EQUIPMENT

Connect the outputs of the source appliances to the inputs “S1”…”S6” (11) of this preamplifier. You can connect up to six devices with analogue RCA stereo high level output such as a CD player in order to provide the audio signals of your input sources to the system. The output sockets on the source equipment are usually indicated by “LINE OUT”, “AUDIO OUT” or “FRONT OUT”. You will find information about ways to connect source equipment in their operating manuals. All six inputs represent electrically equivalent standard high level inputs with RCA connection. They have an identical function and differ only in name.

To use a record player you need a so-called phono preamplifier (also called a equalizer preamplifier), which is installed in the signal path between the record player and one of the high-level inputs. Some models of record player already include this preamplifier and can be connected directly. You will find further information in this appliance’s operating manual.
The stereo sound of appliances that use output connectors other than RCA (DIN plugs, jack plugs) can often also be used with the aid of adaptors.

CONNECTION OF SOURCE DEVICES OVER OPTICAL IN AND COAXIAL IN
The integrated D/A converter makes it possible to receive also digital audio signals via an optical and/or coaxial cable and to transmit them analogously to the amplifier. Here, the “Optical IN” and “Coaxial IN” (13) connections serve as input.

Digital audio source with optical signal connection
Digital audio source with coaxial signal connection

CONNECTION OF A RECORDING DEVICE
If you want, you can use the RCA sockets “OUTPUT REC” (12) on the back of the appliance to connect an analogue stereo recording device (e.g. CD recorder, cassette recorder etc.) or another appliance that is intended for receiving the unchanged, fixed stereo output level (line level) from the signal source selected on the amplifier at any given time. The output level is independent from the volume setting. Please note that while the preamplifier is muted (10) the recording output is switched off.

Connect this signal output to the signal input (“LINE IN”, “TAPE IN” or “REC IN”) on the recording appliance using RCA cables. Please note that some recording equipment can have a slightly detrimental effect on the audio signal quality. Some recording devices have rather low input impedance, which can slightly alter the input signal voltage. For maximal music enjoyment we recommend that you connect to the “REC” terminal only for as long as the recording is actually being made.

CONNECTION OF ONE OR MORE POWER AMPLIFIERS
This preamplifier has two stereo preamplifier outputs with RCA connectors for the main amplifier channels. In this way it is possible to drive four loudspeakers or bi-amp one pair of loudspeakers (e. g. using two stereo main amplifiers). The main amplifiers supply the system’s loudspeakers and the loudspeakers are connected to the outputs of these. Instead of each stereo main amplifier shown here you can alternatively use two mono main amplifiers.

To connect one pair of loudspeakers you will need two main amplifier channels, for example one stereo main amplifier. Connect both sockets named “1” in the field “OUTPUT” (15) with the RCA input sockets of the main amplifier channels (often marked as “INPUT” or “POWER AMP IN”). Please pay attention not to interchange right with left channels. The letters “R” and “L” indicate the correct correlation. You may further use the SA-T7MK preamplifier output marked with “2” for a headphone amplifier.

You can as well use both stereo outputs at the same time, giving way for up to 4 main amplifier channels to supply their loudspeaker. For that all you need to do is connect all remaining stereo outputs (15) with additional main amplifier channel inputs.

CONNECTION OF ONE OR MORE POWER AMPLIFIERS

The fact that this amplifier is equipped with two RCA stereo preamplifier outputs enables you to bi-wire your loudspeakers using adequate speakers and one or more additional main amplifiers. For the best rendering, amplifiers with transmission inputs (e.g. studio amplifiers) should be connected with the optimal output labeled „1“ in „Outputs“. Vincent amplifiers generally have input impedances > 10 kOhm and can be connected to outputs „1“ and/or „2“ anytime. Your HiFi specialist will advise you on this.

CONNECTIONS FOR THE STANDBY CONTROL (POWER CONTROL)
Many AV-Systems consist of a multitude of individual components. To avoid the necessity of switching them on and off before and after every use, many manufacturers have equipped their devices with what is known as “POWER CONTROL” circuit or “TRIGGER”. This kind of remote-controlled standby circuit is used primarily for preamplifier and power amplifiers. Particularly for preamplifiers and main amplifiers this kind of remote standby control is utilized, as power amplifiers are often placed far from other devices near the speakers. To employ these functions, direct or indirect cable connections must be made between the preamplifier (or integrated amplifier) and all the devices which support this function. The “POWER CONTROL” function operates in such a way that each switching on or off of one device in the system (usually the preamplifier) automatically brings about the switching on or off of all the connected devices which support this function. Please keep in mind that all devices which respond to the power control are not disconnected from the mains network when switched off. They are set to a standby state instead. For connecting cables, two-core cables with 3.5 mm jack plugs (mono) are used. For each connection between two devices one of those cables is needed.

If you don‘t wish to use this function or if the other components do not support it, all you have to do is leave out these cable connections.

The SA-T7MK is equipped with two output connectors for the power control. Here, the switching signal generated by the SA-T7MK is available for other components of the system. Two HiFi components that are able to react to the power control signal can be connected directly to the amplifier‘s power control outputs. If more than two devices, which can be controlled, are to be connected, then it is necessary to make the power control connection between the amplifier and these further devices through the outputs of the two devices which are connected directly. For that reason, every HiFi component that accepts power control signals is also equipped with a power control output. Thus, in theory it is possible to provide an infinite number of HiFi components with the power control signal. This approach, to loop a signal through a chain of components, is commonly referred to as “daisy chaining”.

Many devices which can be controlled by a switching signal (not preamplifiers or integrated amplifiers), have two terminals which do not differentiate between input and output. In this case either of the two can be selected.
“POWER CONTROL” sockets of preamplifiers or integrated amplifiers must not be inter-connected! All receiving devices must not be connected to more than one preamplifier or integrated amplifier (directly or indirectly)!

CONNECTION OF THE POWER CABLE
Check that the electricity supply to your home is appropriate to the device. The required voltage and frequency can be read on the back of the device beside the socket for the mains. If the electricity supply is appropriate, push the inlet connector of the supplied mains cable firmly into socket for the mains on the back of the device. Connect the other end of the mains cable to a mains socket.

SWITCHING THE VOLTAGE
This device is equipped with a switch (18) that can be used to change the country-specific voltage from 230 V to 110 V.

Please never actuate the switch during operation! The voltage must only be switched by a technician, since the device fuse must also be replaced after actuation of the switch! Information about the device fuse can be found on the back of the device.

Unauthorized actuation of the switch will void any warranty claim!

OPERATING THE APPLIANCE

using this button at the front panel. It has no standby option. When switched off the device is internally separated from the AC power. As a precaution, after switching on, the volume setting of the preamplifier should be reduced. After switching on, the device needs up to 30 seconds before it is ready to operate. Meanwhile, the LED in the speaker’s knob (9) will be blinking. During power-on mode, one of the LED for the input selection will be lighted.
Select an input| INPUT (7)

Input keys (22)

| At the front panel: If you turn the dial “INPUT”, you select one of the devices connected to the inputs on the back of the SA-T7MK (11)(13)

(14) for playback. Using the remote control: A short touch on the button for the desired input channel (e.g. “S1”) changes to the playback of the audio source connected there. The LED associated to the selected input channel will be illuminated at the front of the appliance. Before switching over the input channel, the volume (9)(23) should be turned down as a precaution!

Change the volume| VOLUME (9)

VOLUME

/ (23)

| At the front panel: Turn the knob “VOLUME” clockwise to turn up the volume and counter-clockwise to turn it down. Using the remote control: Press and hold the button “VOLUME” to raise its value. Use “VOLUME” to lower the volume level. The volume setting does never influence the signal at the output “OUTPUT REC” (12).
Mute the preamplifier output| MUTE (10)(21)| The MUTE (10)(21) function can be activated on the unit (10) or with the remote control (21). It switches off the preamplifier outputs (15) and the recording output (12). The LED in the volume knob will be flashing during mute mode. Pressing the MUTE button again restores he volume to its original setting.
Change the treble proportions of the sound| TREBLE (1)| With the “TREBLE” control dial on the front of the device you affect the proportion of higher frequencies in the sound. Turning it in clockwise direction increases the treble intensity and moving it in anticlockwise direction reduces it. In the middle setting the treble proportions of the input signals remain unchanged. The adjustment of the treble control only has an effect if the button “TONE” (4) has been pressed. The signal of the output “OUTPUT REC” (12) is independent of this.
Change the bass proportions of the sound| BASS (3)| With the “BASS” control dial on the front of the device you affect the pro- portion of lower frequencies in the sound. Turning it in clockwise direction increases the bass intensity and moving it in anticlockwise direction reduces it. In the middle setting the bass proportions of the input signals remain unchanged. The adjustment of the bass control only has an effect if the button “TONE” (4) has been pressed. The signal of the output “OUTPUT REC” (12) is independent of this.
Switch off tone control (BASS/TREBLE)| Tone (4)|

If the sound is not to be changed, it is recommended that you switch off the sound control (BASS, TREBLE) with this button on the front of the device. When this button is pressed, the sound processing settings in the tone controllers (1)(3) come into play. If the button is not pressed, the two sound controllers in the preamplifier are bypassed and the signals from the source are not changed in terms of their frequency levels.

Change the brightness of the tube window illumination| DIMMER (16)| The window for the visible tube (5) could be illuminated with four bright- ness settings. You can change the brightness by the switcher (16) on the backside of the unit.
Switching between digital and analog input signal| ANALOG/ DIGITAL (8)| If you have connected devices to the digital inputs (13) via optical or coaxial cable or use the Bluetooth input (14), you can select these in- puts by pressing the Analog/Digital (8) button. To do this, set the rotary control input (7) to the appropriate input. If the button is not pressed, the appropriate analog inputs (11) are active.
Playback of music by Bluetooth| Bluetooth Function|

1. Please select the Bluetooth input (S4) on the SA-T7MK.
2. Please activate the Bluetooth connection on your smartphone, tablet or computer.
3. Please select the search for new Bluetooth devices on your smart- phone, tablet or computer. You will find the SA-T7MK under the name “Vincent” in your list.
4. Please choose “Vincent” to connect.
5. The SA-T7MK is connected you can start the playback.

TIPS

Burn in/ Warm up
Your audio components need a certain time period until they reach maximum performance. The duration of this “warm up“ time is very different for the various elements of your audio system. Higher and homogeneous sound quality is achieved while keeping the device switched on.

Your audio specialist dealer has enough experience to give you more information.

Net frequency noise
Some audio source devices may in combination with the amplifier cause a humming noise at power line frequency audible from your speakers. Usually, its volume varies with the volume setting of the amplifier. This is no sign of a defect or fault of your audio products but has to be eliminated. Generally, every wall- powered device connected to the ground wire of the power plug can cause this problem when connected to the amplifier.

Experience shows that this problem is mainly caused by antenna-connected components (as TV-sets or Tuners), personal computers, electrostatic loud- speakers, subwoofers, record players or headphone amplifiers that are connected to the audio inputs of the amplifier. Another possible reason for humming noise is electromagnetic interference of other components’, power supplies with pick-up- systems of record players (change the place of the record player for a test).

In most electric devices the ground potentials of all signals are connected to each other at one central point, where they have one common connection. If the device uses the protective conductor of the wall outlet, the corresponding wire of the line cord is connected intractably to the metal housing of the device. This is mostly the point where the central grounding point is attached to. By doing this the housing is able to shield all signals from external radiated noise. Some main amplifiers are equipped with a „Ground Lift“ switch. If it is activated, ground potential of the chassis and the protective ground wire are being separated from the central signal ground point. The protective ground wire keeps its function. Sometimes this helps prevent noise caused by errors in grounding.

If the problem occurs and cannot be solved by yourself your audio specialist dealer will help you.

SEARCH FOR ERRORS

connected to a suitable mains wall outlet.

Mains cable has not been firmly inserted into wall power socket and the device’s socket. Otherwise it may be defective.

Unit fuse or unit is defective.

| Connect to a functioning socket using a suitable mains voltage.

Check the power cable. If necessary, exchange it with a suitable mains cable and push its plug firmly into wall socket and the device‘s power connector.

Contact your dealer.

No sound on both channels although the unit is ready for use (one of the LEDs for the input selection (7) is lit).| The currently selected audio source (7)(22) is giving no signal.

The output of the source device is not connected or is wrongly connected e.g. not connected to the selected input channel terminal of the preamplifier.

| Switch on the source unit and begin playback. Correct the connection.
| Wrong input channel has been selected at the preamplifier.| Set the amplifier to the input that your desired source is connected to (7)(22).
| Volume (VOLUME) is set too low at the preamplifier.| Carefully increase the volume (9)(23).
| The amplifier is muted (MUTE function).| Deactivate mute function (“MUTE” button (10)(21)).
| Main amplifier(s) has/have not been connected correctly to the preamplifier, is/are switched off or is/are faulty.| Check the connection and ready status of the main amplifier(s) and whether it is/they are working.
| The speaker cables are not properly connected to the main amplifier‘s terminals or are defective.| Check and tighten the speaker cables at the main amplifier and the speakers.
No audio playback on one channel| The source equipment is giving signal on only one channel.| Check the audio source. You can try to use it at a different amplifier for a test.
| One of the signal cables between audio source and preamplifier inputs has not yet been plugged in or is defective.| Check the cable connections, tighten them if necessary.
| One or more audio signal cables between pre- and main amplifier are defect or one of the plug connections is loose.| Check and tighten all cable connections.
| One of the speaker cables is not correctly connected to the main amplifier or is defective.| Check and refasten the speaker cables at the speaker terminal of the main amplifier and at the speaker’s connectors.
Poor sound quality| The cable connections are not tight, the connectors are knobs or a cable is defective.

A record player has been connected to a line level input without using a phono preamplifier.

| Check the cables and cable connections. Interconnect a phono preamplifier.
The remote control cannot perform any functions| No batteries inserted in the remote control, batteries are not inserted correctly or are depleted.

The line-of-sight between the remote control and the unit is obstructed, the range was exceeded or the hand unit was operated from a position too far to one side.

The unit is not switched on.

| Check and replace the batteries if necessary.

Try to point the remote control at the front of the unit only when the sight- line is clear, within a 7-metre distance and, if possible, facing the unit.

Switch on the unit.

Humming low frequency noise is audible, even as no audio source is playing back| See section „Net frequency noise“ in the chapter „Tips“.

TECHNICAL SPECIFICATIONS

• Frequency Response: 10Hz – 100kHz +/- 0,1 dB
• Output Voltage: 3 V
• T.H.D.: < 0,001 % (1 kHz, Output Voltage 2Veff an 10 KOhm)
• Amplification: typ. 13,3 dB (Volume Control max. Gain)
• Input Sensitivity: 430 mV (2V Output Voltage)
• Signal-to-Noise Ratio: typ. > 100dB (A)
• Input Impedance: > 22 kOhm
• Max. Power Consumption: 58 Watt
• Inputs: 6 x Stereo RCA, 1 x Optical, 1 x Coaxial, 1 x Bluetooth
• Outputs: 2 x Stereo RCA Pre-Out, 1 x Stereo RCA Rec-Out, 2 x 3,5 mm Jack (Power Control)
• Tubes: 4 x 6SCH9P, 4 x 6SCH51P, 1 x 85A2
• Playable Digital Formats: WAV, FLAC, APE, LPCM, MP3, ACC, AC3, WMA
• Color: Black / Silver
• Weight: 8,5 kg
• Dimensions (WxHxD): 430 x 135 x 370 mm

Sintron Distribution GmbH hereby declares that this product complies with the Radio Equipment Directive 2014/53/EU. The corresponding EU declaration of conformity is available at the following internet address: www.sintron.de/KE

FURTHER INFORMATION AS DEFINDE BY THE ECODESIGN REGULATION

• Power consumption in OFF-mode: <0,4W
• Power consumption in auto standby mode: <0,4W
• Power consumption in cross-linked standby mode (BT): <4W

Time without input signal until auto-standby: 15 min. (autos and by can be switched off).
The wireless cross-link port (BT) can be deactivated (switched off) with the input selector (INPUT).

GLOSSARY

Audio Sources/Source devices
These are the components of your HiFi system and all other appliances, whose sound you want to hear over the system and are thus connected to the preamplifier, amplifier or receiver. This includes CD players, DVD players, tuners (radios), cassette- players, DAT recorders, personal computers, record players, portable audio devices and many more.

Input sensitivity
Term for the smallest average (RMS) input voltage which causes the maximum output power at the maximum volume setting on the amplifier. Examples: 100 mV to 500 mV (Millivolts) on line level inputs, 2 mV to 5 mV on the phono MM input or 0.1 mV to 0.5 mV on the phono MC input.

dB Level
This is a way of describing any physical quantity; it is a common measurement for signal voltages and the volume. It is given in decibels (dB). Alternating signal voltages below 1V (RMS) are described as “line level” voltages, which are suitable as music signals for amplifier inputs. Inputs on amplifiers (mostly represented by RCA sockets), which are de-signed for signals on the CD player, tape recorder, DVD player etc. are also referred to as “line level inputs”. Those signal inputs must not be confused with inputs that accept pre amplified signals.

RCA
RCA is the American name for a type of coaxial connectors and sockets, originally the abbreviation for “Radio Corporation of America”, the name of a United States company. Both the plug and cable consist of a rod-shaped inner lead and a cylindrical- shaped outer lead. This enables a mono audio signal or a video signal to be transmitted. Compared to the XLR plug connector, this type of connection is also called “unbalanced signal connection”.

Dynamics
The volume difference between the quietest and the loudest sounds possible in audio signals, without distortion or transition to noise.

Output impedance
Term for the AC internal resistance of the driving signal source, here the preamplifier. The output impedance of the signal source typically should be significantly lower than that the input impedance of the power amplifier. Exception: For power amplifiers with transmitter input an impedance matching to 600 ohms is advantageous. Since between preamp and power amp the connection should be done via coaxial shielded cables for the best possible reproduction the output impedance should be designed so that the connected cables do not have disturbing influence to the signal transmission. Typical cable impedances are 50 – 75 ohm. The output 2 of the SA-T7MK is designed optimally for this cable types.

Please keep the receipt, store it together with this manual. The receipt is your proof for the beginning of the warranty period. Note the serial number in the following box, you can read it from the rear side of the device.

Serial number:

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© November 2022
International Distributor: Sintron Distribution GmbH · Südring 14 · D-76473 Iffezheim

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