SIRUS Z-Amp 4.250T Mixer Amplifier User Manual

SIRUS Z-Amp 4.250T Mixer Amplifier

Product Information: Z-Amp 4.250T Mixer Amplifier

Specifications

• Model: Z-Amp 4.250T
• Type: Mixer Amplifier
• Date: 01.02.2024
• ID: 575416

Product Usage Instructions

General Information
This document provides essential instructions for the safe operation of the Z-Amp 4.250T Mixer Amplifier. It is crucial to read and adhere to the safety instructions and all guidelines outlined in this manual. Keep this document for future reference and ensure it is accessible to all users.

Safety Instructions
Intended Use: The Z-Amp 4.250T Mixer Amplifier is designed for amplifying, mixing, and playing back signals from musical instruments and microphones. Use the device strictly according to the instructions provided in the user manual to avoid personal injury or property damage.

Safety: Be cautious of electric current hazards. High voltages may be present within the device, so never attempt to remove covers as there are no userserviceable parts inside. Avoid touching bare ends of loudspeaker cables when the amplifier is powered on to prevent potential death or serious injury.

Features
The Z-Amp 4.250T Mixer Amplifier offers a range of features for amplification, mixing, and playback of audio signals. Refer to the latest documentation available for detailed feature descriptions and functionalities.

Installation and Starting Up
Follow the installation guidelines provided in the manual to set up the Z-Amp 4.250T Mixer Amplifier correctly. Ensure all connections are secure and power on the device according to the specified instructions.

FAQ

• Q: Can I use the Z-Amp 4.250T Mixer Amplifier for purposes other than amplification and mixing?
  

  • A: It is recommended to use the device only for its intended purposes of amplification, mixing, and playback of signals from musical instruments and microphones as outlined in the user manual. Other uses may lead to improper operation and potential risks of personal injury or property damage.

Z-Amp 4.250T

User Manual

Mixer Amplifier

• Thomann GmbH
• Hans-Thomann-Straße 1 96138 Burgebrach
• Germany
• Telephone: +49 (0) 9546 9223-0
• Internet: www.thomann.de
• 01.02.2024, ID: 575416

General information
This document contains important instructions for the safe operation of the product. Read and follow the safety instructions and all other instructions. Keep the document for future reference. Make sure that it is available to all those using the product. If you sell the product to another user, be sure that they also receive this document.
Our products and documentation are subject to a process of continuous development. They are therefore subject to change. Please refer to the latest version of the documentation, which is ready for download under www.thomann.de .

Symbols and signal words
In this section you will find an overview of the meaning of symbols and signal words that are used in this document.

immediate dangerous situation that will result in death or serious injury if it is not avoided.
WARNING!| This combination of symbol and signal word indicates a possible dangerous situation that can result in death or serious injury if it is not avoided.
NOTICE!| This combination of symbol and signal word indicates a possible dangerous situation that can result in material and environmental damage if it is not avoided.
|
Warning signs| Type of danger
| Warning – high-voltage.
| Warning – danger zone.

Safety instructions

Intended use

• This device is intended to be used for amplification, mixing and playback of signals from musical instruments and microphones. Use the device only as described in this user manual. Any other use or use under other operating conditions is considered to be improper and may result in personal injury or property damage. No liability will be assumed for damages resulting from improper use.
• This device may be used only by persons with sufficient physical, sensorial, and intellectual abilities and having corresponding knowledge and experience. Other persons may use this device only if they are supervised or instructed by a person who is responsible for their safety.

Safety

• DANGER!
  Risk of injury and choking hazard for children!
  Children can suffocate on packaging material and small parts. Children can injure themselves when handling the device. Never allow children to play with the packaging material and the device. Always store packaging material out of the reach of babies and small children. Always dispose of packaging material properly when it is not in use. Never allow children to use the device without supervision. Keep small parts away from children and make sure that the device does not shed any small parts (such knobs) that children could play with.

• DANGER!
  Danger to life due to electric current!
  Within the device there are areas where high voltages may be present. Never remove any covers. There are no user-serviceable parts inside. Do not use the device when covers, safety equipment or optical components are missing or damaged.

• DANGER!
  Risk of death from electrical current!
  The output voltages of modern high-performance amplifiers may result in death or serious injury. Never touch the bare ends of loudspeaker cables when the amplifier is on.

• DANGER!
  Risk of death from electrical current!
  Hazardous voltage may be present at cable ends and screw terminals. The connection of screw terminals and all maintenance and repair work on the electrical installation of the device may only be performed by a qualified electrician. Always perform maintenance and repair work when the device is free from voltage. Failure to comply may result in electric shock and risk of fire and loss of life. Always observe all electrical safety instructions applicable in the country of operation.

• DANGER!
  Danger to life due to electric current!
  A short circuit could lead to a fire hazard and risk of death. Always use proper ready-made insulated triple-core mains cable with a safety plug. Do not modify the mains cable or the plug. In case of isolation damage, disconnect immediately the power supply and arrange repair. If in doubt, seek advice from a qualified electrician.

• WARNING!
  Possible hearing damage due to high volumes on speakers!
  With loudspeakers connected, the device can produce volume levels that may cause temporary or permanent hearing impairment. Over an extended period of time, even levels that seem to be uncritical can cause hearing damage. Do not operate the device permanently at a high volume level. Decrease the volume level immediately if you experience ringing in your ears or hearing impairment. If this is not possible, keep a greater distance to the speaker or use adequate ear-muffs.

• NOTICE!
  Risk of fire due to covered vents and neighboring heat sources!
  If the vents of the device are covered or the device is operated in the immediate vicinity of other heat sources, the device can overheat and burst into flames. Never cover the device or the vents. Do not install the device in the immediate vicinity of other heat sources. Never operate the device in the immediate vicinity of naked flames.

• NOTICE!
  Damage to the device if operated in unsuitable ambient conditions!
  The device can be damaged if it is operated in unsuitable ambient conditions. Only operate the device indoors within the ambient conditions specified in the “Technical specifications” chapter of this user manual. Avoid operating it in environments with direct sunlight, heavy dirt and strong vibrations. Avoid operating it in environments with strong temperature fluctuations. If temperature fluctuations cannot be avoided (for example after transport in low outside temperatures), do not switch on the device immediately. Never subject the device to liquids or moisture. Never move the device to another location while it is in oper‐ation. In environments with increased dirt levels (for example due to dust, smoke, nicotine or mist): Have the device cleaned by qualified specialists at regular intervals to prevent damage due to overheating and other malfunctions.

• NOTICE!
  Damage to the device due to high voltages!
  The device can be damaged if it is operated with the incorrect voltage or if high voltage peaks occur. In the worst case, excess voltages can also cause a risk of injury and fires. Make sure that the voltage specification on the device matches the local power grid before plugging in the device. Only operate the device from professionally installed mains sockets that are protected by a residual current circuit breaker (FI). As a precaution, disconnect the device from the power grid when storms are approaching or it the device will not be used for a longer period.

• NOTICE!
  Risk of fire due to installation of a wrong fuse!
  Using fuses of a different type than compatible with the device may cause a fire and seriously damage the device. Only use fuses of the same type. Observe the labelling on the device casing and the information in the “Technical data” chapter.

Features

• 4-zone amplifier
• Class D amplifier
• Volume control on the front
• Zone selection
• 4 microphone/line inputs
• Media player for playing back audio files via USB or Bluetooth
• 18 V phantom voltage input
• Priority control
• Input for connecting an external audio device
• Screw terminals for connecting speakers, phone systems or amplifiers
• Includes 19-inch kit for rack mounting

Installation and starting up

• Unpack and check carefully there is no transportation damage before using the unit. Keep the equipment packaging. To fully protect the product against vibration, dust and moisture during transportation or storage use the original packaging or your own packaging material suitable for transport or storage, respectively.
• Create all connections while the device is off. Use the shortest possible high-quality cables for all connections. Take care when running the cables to prevent tripping hazards.

Pin assignment

XLR connections for signal inputs

Balanced XLR panel sockets serve as signal inputs. The drawings and tables show the XLR pin assignment.

Balanced wiring

Jack plugs for signal inputs

The figures and tables show the pin assignments of 6.35-mm jack plugs. Balanced stereo jack wiring:

Cinch plugs for signal inputs

Drawing and table indicate the pin assignment of a cinch plug.

Unbalanced wiring

Screw terminal strips

• All speaker units and a phone system are connected via a screw terminal strip on the back of the device.
• First detach the covers of the screw terminal strips using a suitable screwdriver. Loosen the required screw terminals (see connection diagram) and attach the neces‐sary cables using a suitable screwdriver.

Rack mounting

• Finally check all cable connections for tightness and reattach the terminal screw strip covers to the device.
• The device has been designed for rack mounting in a standard 19-inch rack; it occupies two rack units.

Connections and controls

1 to 4 of the media player.
4| [Zone Selector Z1] … [Zone Selector Z4] | Buttons for selecting zones 1 to 4

The signals from the [INPUT 1] … [INPUT 5] and [Tel. Paging] inputs are assigned to the selected zones.

5| [TREBLE] | Rotary control for adjusting the high frequencies of inputs [INPUT 1] … [INPUT 5].

Starting from the neutral position, turn the control knob in clockwise or anti-clockwise direction to boost or cut the treble frequencies by up to ± 10 dB.

6| [BASS] | Rotary control for adjusting the low frequencies of inputs [INPUT 1] … [INPUT 5].

Starting from the neutral position, turn the control knob in clockwise or anti-clockwise direction to boost or cut the bass frequencies by up to ± 10 dB.

7| [VOL] | Rotary control for adjusting the volume of inputs [INPUT 1] … [INPUT 5].

Starting from the neutral position, turn the control knob clockwise or anti- clockwise to increase or reduce the volume.

8| [VOL] | Rotary control for adjusting the volume of the input signal on the [Tel. Paging] input.

Starting from the neutral position, turn the control knob clockwise or anti- clockwise to increase or reduce the volume. When the [Tel. Paging] input is not in use, turn the volume to the zero position.

9| [OUTDOOR/INDOOR] | Button for selecting the bandwidth of outputs [ZONE 1] … [ZONE 4]
10| [VOLUME] | Rotary control for adjusting the volume of outputs [ZONE 1] … [ZONE 4].

Starting from the neutral position, turn the control knob clockwise or anti- clockwise to increase or reduce the volume.

11| | Main switch. Turns the device on and off.

speaker system(s)
16| [INPUT 5] | Cinch input sockets for connecting an external audio device
17| [LINE/MIC/PHANTOM] | Signal level switch for inputs [INPUT 1] … [INPUT 4]
18| [INPUT 1] … [INPUT 4] | Inputs 1 to 4, designed as XLR/jack combination sockets
19| [Monitor Line Out] | Screw terminals for connecting an amplifier, recorder etc.
20| [Monitor 1 W 8Ω] | Screw terminals for connecting a speaker that is supplied with a rated power of 1 W by an additional power amplifier.
21| [Priority] | If these screw terminals are short-circuited (e.g. with an electric switch), the input signal of inputs [INPUT 2] … [INPUT 5] is attenuated.
22| [Tel. Paging] | Screw terminals for connecting an AUX signal (e.g. phone system). The input is equipped with voice prioritization that overrides all other input signals as soon as an AUX signal is transmitted.

Technical specifications

(balanced) AUX: –5 dBV, ± 2 dB (unbalanced)

TEL: –15 dBV, ± 2 dB

Sound control| Treble: ± 10 dB, 10 kHz

Bass: ± 10 dB, 100 Hz

Total harmonic distortion (THD)|   1 %
Signal-to-noise ratio| MIC: > 65 dB LINE: > 75 dB

AUX: > 75 dB

Phantom power| 18 V
Output impedance| COM, 4 Ω
LINE output voltage| COM, 70 V, 100 V
Priority control| INPUT 1
Priority sensitivity| MIC + TEL, –60 dBV/3S
Bluetooth| Frequency range| 2402 MHz…2480 MHz
Max. transmission power| –4.07 dBm
Standard| Version 5.0
Name| Z-Amp 4.250T
Supply voltage| 220 – 240 V    50/60 Hz
Power consumption, max.| 1,500 W
Rated power| 1,100 W
Fuse| 220 – 240 V: 5 mm x 20 mm, 6.3 A, 250 V, slow blow
Dimensions (W × H × D)| 449 mm × 134 mm × 370 mm (without rack angle)

484 mm × 134 mm × 370 mm (with rack angle)

Weight| 17.6 kg
Ambient conditions| Temperature range| 0 °C…40 °C
---|---|---
Relative humidity| 20%…80% (non-condensing)

Cleaning

Components
Clean the externally accessible parts of the device regularly. The frequency of cleaning depends on the operating environment: wet, smoky or particularly dirty surroundings can cause more dirt to accumulate on the device parts.

• Clean with a soft dry cloth.
• Stubborn stains may be removed with a slightly damp cloth.
• Never use cleaners containing alcohol or thinner.

Fan grids
The fan grids of the device must be cleaned of any contamination, such as dust, etc. on a regular basis. Before cleaning, switch off the device and disconnect mains-operated devices from the mains. Only use pH-neutral, solvent-free and non-abrasive cleaning agents. Clean the unit with a slightly damp lint-free cloth.

Protecting the environment

Disposal of the packing material

Environmentally friendly materials have been chosen for the packaging. These materials can be sent for normal recycling. Ensure that plastic bags, packaging, etc. are dis‐posed of in the proper manner.
Do not dispose of these materials with your normal household waste, but make sure that they are collected for recycling. Please follow the instructions and markings on the packaging.
Observe the disposal note regarding documentation in France.

Disposal of your old device

This product is subject to the European Waste Electrical and Electronic Equipment Directive (WEEE) as amended.
Do not dispose of your old device with your normal household waste; instead, deliver it for controlled disposal by an approved waste disposal firm or through your local waste facility. When disposing of the device, comply with the rules and regulations that apply in your country. If in doubt, consult your local waste management facility. Proper disposal protects the environment as well as the health of your fellow human beings.
Also note that waste avoidance is a valuable contribution to environmental protec‐tion. Repairing a device or passing it on to another user is an ecologically valuable alternative to disposal.
You can return your old device to Thomann GmbH at no charge. Check the current conditions on www.thomann.de  .
If your old device contains personal data, delete those data before disposing of it.

References

• Buy musical instruments online from the market leader – Thomann United States

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