TAGA HARMONY TTA-1000B High-End Vacuum Tube Integrated Amplifier Instruction Manual
- June 6, 2024
- TAGA HARMONY
Table of Contents
TTA-1000B
HIGH-END VACUUM TUBE INTEGRATED AMPLIFIER
Instruction Manual
Introduction
Thank you for purchasing this TAGA Harmony amplifier.
TTA-1000B is a 2 x 30W / 8ohm Pure Class A high-end vacuum tube integrated
amplifier utilizing high-performance PSVANE vacuum tubes from the Classic
series:
KT88 tubes in the output stage (with the fixed grid load) and an ECC83 tube
preamp section, composed of a 6SN7 long-tail phase inversion drive circuit.
TTA-1000B uses audiophile-grade coupling capacitors: Evox for input tubes and
Wima for connecting driver tubes with the output amp, and Rubycon capacitors
in the amp
section.
The amplifier sounds in a very warm, lifelike way and has high dynamics.
The sound is very linear with almost no negative feedback.
High-quality toroidal EI broadband sound output transformer provides voltage
stability and constant and immediately-available energy at any volume level.
Both channels use independent rectifiers and filter circuits in the supply
power.
The sound is natural and fresh with a deep multidimensional soundstage.
The audiophile-grade ALPS volume potentiometer ensures minimal noises and
channels crosstalk and has an excellent operational feel and limits errors
between the two
channels.
The high-end class, gold-plated speaker terminals, and gold-plated ceramic
tube sockets offer almost lossless audio signal transmission to speakers.
Analog inputs with high-end solid machined brass RCA sockets can accommodate
up to 3 stereo devices including a turntable (both MM and MC cartridges) so
you can
enjoy music from your favorite vinyl records.
The TTA-1000B is also an ideal companion for wireless music streaming using
smartphones, tablets, or computers compatible with Bluetooth®.
A preamplifier output is dedicated for an optional external power amplifier or
powered subwoofer and speakers.
The removable IEC power cable gives an option to upgrade your system with a
premium audiophile power cable at any time. Enjoy the analog sound at its best
– Enjoy the TTA-1000B!
Cleaning
Do not use strong or abrasive cleaners. Use a damp, soft cloth for cleaning.
Specifications and the latest instruction manual edition
Full technical specifications and the latest edition of the instruction manual
are available on www.TagaHarmony.com.
Safety Instructions
IMPORTANT
READ THIS SECTION CAREFULLY BEFORE PROCEEDING!
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CAUTION
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RISK OF ELECTRIC SHOCK DO NOT OPEN
WARNING : TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE. DO NOT REMOVE COVER (OR BACK). NO USER- SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The triangle containing a lightning symbol is intended to alert the user to the presence of uninsulated dangerous voltages within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
An exclamation mark in a triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPARATUS TO RAIN OR MOISTURE, AND OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES,
SHOULD NOT BE PLACED ON THIS APPARATUS.
CAUTION: TO PREVENT ELECTRIC SHOCK, FULLY AND SECURELY INSERT THE POWER
CABLE PLUG INTO THE POWER OUTLET, AND POWER CABLE CONNECTOR INTO THE UNIT
SOCKET (IF THIS UNIT IS NOT EQUIPPED WITH AN
INTEGRATED [ATTACHED] POWER CORD).
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE THE FUSE
(IF THE UNIT IS EQUIPPED WITH A USER-REPLACEABLE FUSE) ONLY WITH THE SAME
AMPERAGE AND VOLTAGE TYPE. IN CASE WHEN THE UNIT IS NOT EQUIPPED WITH A USER-
REPLACEABLE FUSE – REFER REPLACEMENT TO QUALIFIED SERVICE PERSONNEL.
WARNING: THE UNIT MAY BECOME HOT. ALWAYS PROVIDE ADEQUATE VENTILATION TO
ALLOW FOR COOLING. DO NOT PLACE THE UNIT NEAR A HEAT SOURCE, OR IN SPACES THAT
CAN RESTRICT VENTILATION.
Safety Instructions
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Read Instructions – All the safety and operating instructions should be read before the product is operated.
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Retain Instructions – The safety and operating instructions should be retained for future reference.
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Heed Warnings – All warnings on the product and in the operating instructions should be adhered to.
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Follow Instructions – All operating and use instructions should be followed.
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Cleaning – Unplug this product from the power outlet before cleaning. Do not use liquid cleaners or aerosol cleaners.
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Water and Moisture – Do not use this product near water – for example, near a bathtub, washbowl, kitchen sink, or laundry tub; in a wet basement; or near a swimming pool; and the like. These precautions also apply to the power cord.
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Accessories – Do not place this product on an unstable cart, stand, tripod, bracket, or table. The product may fall, causing serious injury to a child or adult and serious damage to the product. Use only with a cart, stand, tripod, bracket, or table recommended by the manufacturer or sold with the product. Any mounting of the product should follow the manufacturer’s instructions and should use a mounting accessory recommended by the manufacturer.
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Ventilation – This unit may be equipped with slots and openings in the cabinet (housing) which are provided for ventilation and to ensure reliable operation of the product and to protect it from overheating and these openings must not be blocked or covered. The openings should never be blocked by placing the product on a bed, sofa, rug, or another similar surface. This product should be not placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer’s instructions have been adhered to. For products equipped with a separate power supply unit, leave at least 5cm (2in.) of free space on all sides and the top of the power supply.
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Power Sources – This product should be operated only from the type of power source indicated on the marking label (placed on the product and/or, if applicable, on a separate power supply unit). If you are not sure of the type of power supply in your home, consult your product dealer or local power company. For products intended to operate from battery power or other sources, refer to the operating instructions.
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Grounding and Polarity – some units for proper operation or to take full advantage of their capabilities may require to be connected to a grounded power outlet – refer to the user manual for more information. Some units may have markings for the live (L) and neutral (N) conductors for power – in order to take full advantage of the capabilities of such products, it is recommended to properly connect the polarity according to the markings on the unit – refer to the user manual for more information. Connecting the polarity not in accordance with the markings will not affect the durability and reliability of the device.
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Power-cord Protection – Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the product.
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Lighting – For added protection for this product during a lightning storm or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or system cables. This will prevent damage to the product due to lightning and power-line surges.
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Overloading – Do not overload wall outlets, extension cords, or integral convenience receptacles as this can result in a risk of fire or electric shock.
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Object and Liquid Entry – Never push objects of any kind into this product through openings as they may touch dangerous voltage points or short-out parts that could result in a fire or electric shock. Do not expose this apparatus to dripping or splashing and ensure that no objects filled with water, such as vases are placed on the apparatus.
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Servicing – Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.
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Damage Requiring Service – Unplug this product from wall outlet and refer servicing to qualified personnel under the following conditions:
• when power supply cord or plug is damaged;
• if the liquid has been spilled or objects have fallen into the product;
• if the product does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions as an improper
adjustment of other controls may result in damage and will require extensive work by a qualified technician to restore the product to its normal operation;
• if the product has been dropped or damaged in any way;
• if the product exhibits a distinct change in performance – this indicates a need for a service. -
Replacement Parts – When replacement parts are required, be sure the technician has used replacement parts specified by the manufacturer or with the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards.
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Safety Check – Upon completion of any service or repairs to this product, ask the service technician to perform a safety check to determine that the product is in proper operating condition.
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Wall of ceiling mounting – The product should be mounted to a wall or ceiling only as recommended by the manufacturer.
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Heat – The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that produce heat.
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[Refer to products equipped with vacuum tubes] Tube Cage or cover -For your safety and to protect the vacuum tubes this product may be equipped with the factory-installed vacuum tube cage or cover. It is not recommended to remove the cage or cover unless it is required to change the vacuum tubes. When the cage or cover is removed – do not touch the vacuum tubes – they may be hot and burn the skin!
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Operating environment – Operating environment temperature and the humidity of the unit: +5°C to +35°C (+41°F to +95°F); less than 85% RH (cooling slots not blocked).
Remote Controller
- Always use AAA batteries and do not use rechargeable batteries.
- Do not mix new batteries with old batteries or different kinds of batteries.
- If the batteries run out, remove the old batteries and replace them with new ones within several minutes.
- If the batteries are placed incorrectly, they can cause an explosion.
- Remove the batteries if the remote control is not used for a long period of time.
- Do not handle and store the batteries together with metallic tools.
Battery Installation
- Prepare two AAA batteries (not provided with this product).
- Remove the rear cover.
- Insert the batteries into the battery compartment. Carefully follow the polarity diagram inside the battery compartment ( positive + and negative – symbols).
- Reinstall the rear cover.
Operating Range
Use the remote controller by aiming it at the remote controller sensor. The
remote controller can operate in the maximum range of 5 meters away from the
amplifier and within 30 degrees from the axis of the controller sensor.
Note! Exposing the remote controller sensor to direct sunlight or strong
light may cause faulty operation.
- CD Input Selector Button
- Line Input Selector Button
- Phono MM Input Selector Button
- Bluetooth® Input Selector Button
- Phono MC Input Selector Button
- Mute Button
- Volume Buttons (▼/▲)
Front and Rear Panel
Front Panel:
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Input Selector
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Remote Controller Sensor
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Analog CD / LINE / Phono MM / Phono MC Inputs LED Indicators
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Power Switch (ON and OFF)
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Bluetooth® Input LED Indicator
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Volume Regulator with Volume Change LED Indicator
Rear Panel: -
Phono Ground Screw
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Analog Stereo RCA Inputs PHONO (MM / MC) / LINE / CD
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Preamplifier Stereo RCA Output
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Speaker Right Channel Output (Speaker Connectors)
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Speaker Left Channel Output (Speaker Connectors)
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Power Cable Input and Fuse Box
A blown fuse should be only exchanged for exactly the same type as indicated on the rear panel. The Power Cable should be disconnected! -
Bluetooth® Antenna and Antenna Socket
Hooking Up Speaker Cables
The Speaker Connectors can accommodate up to 10AWG speaker cables as well as
most of the popular plugs (banana etc.). It is recommended to leave about 150
cm (5 feet) of extra cable at the amplifier end to facilitate positioning and
installation of the amplifier. Do not use staples, nails, or other metal
objects to secure the cables. You will get the best sound quality and least
amount of hum by keeping the cables away from other electrical wires and
cables.
Pay attention to connecting the polarity of the amplifier correctly with the
speakers in each speaker group (speakers should be connected RED + with RED +
amplifier connector, BLACK – with BLACK – amplifier connector).
8Ω For 8-ohm speakers connect RED+ to the Speaker Connectors marked with
the “8Ω” mark. For 6 ohm speakers connect RED+ to the Speaker Connectors
marked with the “8Ω” mark.
4Ω For 4-ohm speakers connect RED+ to the Speaker Connectors marked with
the “4Ω” mark.
Before connecting make sure that your amplifier is turned off. Do not let bare speaker wires touch each other or any metal part of this unit it may damage this amplifier and/or speakers. This may void your warranty.
Please refer to your speaker instruction manual for more information.
Connecting speaker cables
Speaker cables have 2 conductors. Each conductor should be connected to a
separate speaker connector – mind the polarity while connecting. For each
conductor:
- Remove approximately 10 mm (3/8”) of insulation from the end of the conductor. Twist the bare wires firmly together.
- Loosen the speaker connector.
- Insert the bare wires of the conductor into the gap of the speaker connector.
- Tighten the speaker connector.
Connecting via banana plug
Mind the polarity while connecting.
Note! An insert hole for the banana plug in some speaker connectors may
be secured with a plastic plug – make sure to remove this plastic plug before
inserting the banana
plug.
- Tighten the speaker connector
- Insert the banana plug into the end of the corresponding connector
Hooking up the Amplifier
Important Note!
This amplifier requires the speakers to be connected before powering on. Never
turn the amplifier on without the speakers being connected! This may damage
the tubes and may void your warranty.
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Make sure the amplifier is turned OFF (the Power Switch and the Power Cable is removed from the wall outlet).
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Turn the Volume Regulator to MIN (max counterclockwise). Screw in the Bluetooth® antenna into the antenna socket. Note! Make sure the antenna is securely and firmly installed – otherwise the “TTA-1000B” Bluetooth® device may not be found or the connection may be unstable.
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Using speaker cables (not supplied with this product) connect your speakers to the SPEAKERS OUT connectors are located on the rear panel.
Check “Hooking Up Speaker Cables” for more details. -
If you want to play music from audio source devices equipped with an analog output (CD player, FM tuner, etc.): using RCA interconnect cables (not supplied with this
product) connect them to the analog inputs on the rear panel (CD, LINE). -
If you want to play music from a turntable: use an RCA Phono interconnect cable (not supplied with this product) to connect the turntable to the PHONO input on the rear panel. Screw-in a ground cable of the turntable to the Phono Ground Screw.
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Preamplifier Output (PRE OUT): this amplifier is equipped with the preamplifier output. Using RCA interconnect cables (not supplied with this product) you can connect
to it an external amplification device (power amplifier, powered speakers, active subwoofer, etc.) or a recording device (CD recorder, etc.). Check „Preamplifier Output Connection (PRE OUT)” for more details. -
If you want to stream music via Bluetooth® from compatible devices check “Bluetooth® Connection” for more details.
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Your amplifier is ready for operation.
Only speakers within the range of impedance 4 – 8 ohm can be connected. Connecting speakers outside this range may damage this amplifier and/or speakers. This may void your warranty.
Operation
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Plug the Power Cable into the amplifier and into the wall outlet.
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Turn on the amplifier – press the Power Switch (the Power Switch ). The CD Input LED Indicator will be blinking and should turn on in approximately 30 seconds.
If it does not, it means that the amplifier is working in an abnormal condition (a protection mode) – turn off the power, unplug the Power Cable and check whether
some of the cables are not short-circuited. After fixing the cables turn the amplifier ON. -
By rotating the Input Selector knob on the front panel or pressing one of the input selector buttons on the remote controller, select which audio source you want to play.
Make sure the audio source is properly connected to the rear panel inputs. The selected source is indicated by one of the LED indicators on the front panel. Note! Depending on the type of cartridge your turntable is equipped with, select MM or MC input. -
Turn on your audio source and start playback.
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Regulate volume on the amplifier to adjust the level of sound.
Note! Check “Additional Information” for other useful operating instructions.
High volume levels may damage this amplifier and/or speakers. This may void your warranty.
VOLUME Regulator:
Using the Volume Regulator on the front panel or down ▼ and up ▲ buttons on
the remote controller, you can adjust the sound volume from minimum (the knob
– max counterclockwise) to maximum (the knob – max clockwise).
Distortion and sound quality worsening may occur when the knob is in the maximum position. It may damage the amplifier and/or speakers. This may void your warranty.
MUTE:
During playback press this button to stop amplifier audio output (no sound
will be audible in speakers or through the PRE OUT). Press it again to recover
the audio signal output back.
Preamplifier Output connection (PRE OUT):
This amplifier is equipped with the preamplifier output, which allows
connecting amplification or recording equipment such as a power amplifier,
powered speakers, active subwoofer, or a CD recorder. The audio signal from
the preamplifier of this device is directed to the PRE OUT and its level is
variably controlled by the Volume Regulator.
The output to the SPEAKERS OUT is still active and it works simultaneously
with the PRE-OUT.
Bluetooth® Connection
Bluetooth° Connection
- After the amplifier is switched on – the built-in Bluetooth® receiver is waiting to be paired with a Bluetooth® source.
- Select the Bluetooth® input – the blue Bluetooth® Input LED Indicator will be flashing.
- Select Bluetooth® on your audio source (smartphone, laptop, etc.) and start scanning for available Bluetooth® devices.
- After a short time “TTA-100013– will appear on the screen of your audio source.
- Select ‘Pair on your audio source to connect with the amplifier. After connection is successful the Bluetooth® Input LED Indicator will be illuminated continuously and it will remain illuminated as long as the current connection is active.
- TTA-10006 will now be ready to play your music wirelessly within a range of approximately 5 meters. Start playback on your audio source.
Note! Please refer to your audio source user instruction for details on
operating the Bluetooth®.
Operation and names of specific functions may vary on different devices.
Important Notes – Bluetooth® Connection
- As long as the amplifier is not switched off for longer than 10 seconds – the current Bluetooth® connection is active (even if you change the input). After that time the connection is lost and you will have to repeat the pairing procedure.
- When you move away from the working range of the amplifier Bluetooth® receiver for longer than 60 seconds, the current Bluetooth® connection will be lost and you will have to repeat the pairing procedure. Within 60 seconds the connection can be automatically reconnected.
- When you want to use another Bluetooth® audio source than currently active, you have to disconnect the active connection and start the Bluetooth® connection procedure.
- Make sure the antenna is securely and firmly installed, and that there are no objects placed between an audio source and the amplifier obscuring the Bluetooth® signal which may result in unstable or no connection.
Note! The above-listed functionality may vary on different Bluetooth®
audio sources (smartphones. computers or other compatible devices).
For some audio source devices, it may take a shorter or longer period of time
to reconnect to the amplifier or it may even require repeating the pairing
procedure each time the Bluetooth® connection is lost.
Note! If your Bluetooth® audio source is not able to find the
“TTA-100013– Bluetooth® device or connect to it then switch off the
amplifier, wait at least 60 seconds, and after the amplifier is switched on
repeat the pairing procedure.
Additional Information
Break-In
Your TAGA Harmony amplifier sounds great immediately after it is taken out of
the carton but as with all vacuum tube amplifiers, this amplifier requires a
“break-in” period to reach its full sonic capabilities. During the “break-in”
period it is recommended to operate the amplifier at moderate volume levels.
The first level of the “break-in” is reached after approximately 10 hours of
play. The optimal level of the “break-in” is reached after approximately 40 to
60 hours of play.
It is recommended to avoid one-time short periods of operation unless the
amplifier reaches the first “break-in” level. When the amplifier is turned on,
it should operate for
around 4-6 hours.
Turn off procedure
Make sure to turn off the amplifier first when powering down your system.
If the amplifier was turned off even for a short period of time, you should wait at least 2 minutes before turning it back on. Do not turn it ON then OFF and then ON again in quick succession.
Follow this procedure each time you turn your amplifier OFF / ON. This precaution will minimize the stress (high voltages) on internal components.
Vacuum tubes – noise floor and interferences
It is a normal phenomenon for an amplifier equipped with vacuum tubes to
produce significant amount of noise (called noise floor or self-noise) which
can be audible in
speakers (in one or both channels). Devices equipped with vacuum tubes are
more prone to various types of interferences generated by nearby electronic
equipment – try to eliminate such a problem by moving this product away from
the source of interference or trying to power it from a different power line
than other equipment (e.g. from a power outlet in another room).
Tube Cage
For your safety and to protect the vacuum tubes this amplifier is equipped
with a vacuum tube cage which is factory installed.
It is not recommended to remove the cage unless it is required to change
the vacuum tubes.
To remove the cage:
- Turn off the amplifier.
- Unplug the Power Cable from the electrical outlet.
- Wait for approximately 30 minutes to cool down vacuum tubes.
- Remove the cage by pulling it upward.
Make sure to reinstall the cage for regular operation.
When the cage is removed – do not touch the vacuum tubes – they may be hot and burn the skin!
Vacuum Tube Replacement
The lifetime of vacuum tubes may vary and depends on their operation time and
ambient temperature, playback volume levels, and the number of on and off
cycles. Replacement vacuum tubes are not supplied with this product.
The warranty time for vacuum tubes is shorter than for other components of this device – for more details check your warrant terms or contact a local dealer.
To replace the vacuum tube:
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Remove the tube cage – check “Tube Cage” for more details.
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Make sure that the vacuum tubes are cool.
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To protect the vacuum tubes during this operation, please put on the gloves which are supplied with this product.
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The vacuum tubes are installed in sockets.
Remove the vacuum tube you want to replace by gently pulling it in the tube sockets. -
Make sure to replace the vacuum tube with the same type or with another type which is a direct equivalent of the factory installed one. Gently but firmly place the new vacuum tube in the socket.
Make sure that pins of each tube are firmly and fully inserted into tube socket holes otherwise it may result in damaging this amplifier and/or tubes. This may void your warranty. -
. If you change the output power vacuum tubes (KT88) make sure to “bias” your amplifier – check “Vacuum Tube Biasing” for more details.
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Make sure to reinstall the cage for the regular operation
Vacuum Tube Biasing (KT88)
Only the output power tubes (KT88) need to be biased manually. This procedure
requires opening the amplifier and we recommend contacting TAGA Harmony
authorized service center to perform it.
The bias procedure has to be always performed in case:
– If any output power tube (KT88) is changed for another one (e.g. for a new
tube).
– If the power tubes (KT88) are removed and installed back in different tube
sockets than those before the removal. Not performing the bias procedure or
performing it improperly may damage this amplifier and/or tubes. This may void
your warranty.
Power transformer – Power filters and conditioners
It is a normal phenomenon that the device’s power transformer may generate a
certain amount of audible noise. Very loud operation of the power transformer
may be caused by the low quality of power supply (voltage surges etc.). In
such a case, we suggest using a power filter or conditioner – you can also try
to power this product from a different power line than other devices (e.g.
from a power outlet in another room).
Specifications
Power Output | 2 x 30W Class A |
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Output impedance | 4ohm, Bohm |
Vacuum Tubes | PSVANE Classic Series |
4 x KT88, 2 x 6SN7, 1 x ECC83 Triode operation mode
THD| ≤0.35% (1KHz/2V)
Signal/Noise ratio| ≥89db
Frequency Response| 10Hz — 30kHz (+/- 1dB)
Inputs| Analog: RCA Stereo: CD, Line, Phono (MM/MC)
Outputs| RCA PRE-OUT
Wireless connectivity| Bluetooth® v4.0
Line inputs| Sensitivity: 450mV Impedance: RCA 50K ohm
Phono input (MM I MC)| Input impedance 47Kohms | 47ohms
Gain 40dB | 60dB
Output voltage 400mV | 400mV
THD ≤ 1%
AC Power,
Power Consumption
| 230-240V 50Hz, 400W
Dimensions (H x W x D)| 22.5 x 45 x 37.5 cm
Weight (net)| 24 kg / pc.
Bluetooth® is a registered trademark of Bluetooth SIG., Inc.
We reserve the right to change the technical data and the design of the
product without notice as a result of further development.
Notes
We strongly advise contacting a professional installer or dealer in order
to install TAGA Harmony products.
We recommend using high-quality TAGA Harmony cables and other installation
accessories.
Kit Content:
Amplifier | 1 EA |
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Remote Controller | 1 EA |
Bluetooth
®
Antenna| 1 EA
Power Cable| 1 EA
Gloves| 1 PAIR
Instruction Manual| 1 EA
| Your product is marked with the symbol as showed on the left. For EU
(European Union) member users: This product has been tested and found in
compliance with requirements of the European Community 2014/30/EU (EMC) &
2014/35/EU (LVD) & 2014/53/EU (RED) directives.
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| IMPORTANT!
Your product is marked with the symbol as showed on the left. For EU (European
Union) member users: According to the WEEE (Waste electrical and electronic
equipment) Directive, do not dispose of this product as household waste or
commercial waste. Waste electrical and electronic equipement should be
appropriately collected and recycled as required by practices established for
your country. For information on recycling of this product, please contact
your local authorities, your household waste disposal service or the shop
where you purchased the product.
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TAGA EUROPE
POLPAK POLAND Sp. z o.o.
AL.JEROZOLIMSKIE 331A
05-816 REGUŁY k/WARSZAWY, POLAND
Email: sales@TagaHarmony.com
www.TagaHarmony.com
Edition 04-2021
safety_02-20_1
Documents / Resources
| TAGA
HARMONY TTA-1000B High-End Vacuum Tube Integrated
Amplifier
[pdf] Instruction Manual
TTA-1000B, High-End Vacuum Tube Integrated Amplifier
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