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Summary of Contents for Clever Acoustics ZM4
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ZM4 4 Zone Mixer User Manual CH 1 CH 2 CH 3 CH 4 CH 5 ZM4 4 Zone Mixer GAIN GAIN GAIN GAIN GAIN ZONE 1 ZONE 2 POWER VOLUME VOLUME MONITOR MONITOR VOLUME VOLUME VOLUME VOLUME VOLUME ZONE 3...
• Do not expose to flammable sources, liquids or gases. • If your product fails to function correctly, stop use • Always disconnect the power from the mains when immediately. Pack the unit securely (preferably in the equipment is not in use or before cleaning! Only handle original packing material), and return it to your Prolight the power-cable by the plug. Never pull out the plug by dealer for service. pulling the power-cable. • Only use fuses of same type and rating. • Make sure that the available voltage • Repairs, servicing and power connection must only be is 240V, 50Hz AC or 24V DC. carried out by a qualified technician. THIS UNIT CONTAINS • Make sure that the power cable is never crimped or NO USER SERVICEABLE PARTS. damaged. Check the equipment and the power cable • WARRANTY: Three years from date of purchase. periodically. OPERATING DETERMINATIONS If this equipment is operated in any other way, than those described in this manual, the product may suffer damage and the warranty becomes void. Incorrect operation may lead to danger e.g: short-circuit, burns and electric shocks etc. Do not endanger your own safety and the safety of others! Incorrect installation or use can cause serious damage to people and/or property. www.cleveracoustics.co.uk ZM4 4 Zone Mixer User Manual...
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ZM4 4 Zone Mixer GAIN GAIN GAIN GAIN GAIN ZONE 1 ZONE 2 POWER VOLUME VOLUME MONITOR MONITOR VOLUME VOLUME VOLUME VOLUME VOLUME ZONE 3 ZONE 4 VOLUME VOLUME PHONE MONITOR VOLUME VOLUME MONITOR MONITOR PHONE www.cleveracoustics.co.uk ZM4 4 Zone Mixer User Manual...
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POWER CONSUMPTION (max.): 22W 15 14 01 - Gain control 11 - Monitor output selector 20 - Priority control terminals 02 - HF level control 12 - Power LED 21 - Telephone/paging input (TEL) 03 - LF level control 13 - Power switch 22 - Telephone/paging input zone selection & volume control 04 - Input channel level control 14 - AC mains power input 23 - Stereo LINE inputs 05 - Zone selection switches 15 - AC mains fuse 24 - Mono MIC/LINE inputs 06 - Headphone level control 16 - AC voltage selector 25 - Input sensitivity and phantom 07 - Headphone output 17 - 24V DC power input power control 08 - LED VU output meter 18 - Monitor (MIX) line output 26 - Balanced line level zone outputs 09 - Monitor level control 19 - Monitor loudspeaker output (1W 8Ω) 10 - Zone output level control www.cleveracoustics.co.uk ZM4 4 Zone Mixer User Manual...
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4. Input channel level control: The gain control is used to adjust the input gain (level) for each of the zone mixers input channels. Turn the level control anti clockwise to the lowest setting, or turn clockwise to adjust to the highest setting. Adjustments should be made gradually to avoid any sudden changes to the audio output. If the audio source appears to sound distorted, a reduction in gain may be required. The input channel level control adjusts the level of the selected input channel within the main mix. 5. Zone selection switches: Each of the five input channels may be routed to any of the four output zones. Press the switch to the IN position to route the selected input channel to the chosen output zone. 6. Headphone level control: The headphone output volume is adjustable. Turn the level control anti clockwise to the lowest setting, or turn clockwise to adjust to the highest setting. 7. Headphone output: Utilising a standard 3.5mm stereo jack socket, the headphone output is used alongside the monitor function to check the output of individual output zones. If none of the output zones are selected using the monitor selection switches, the headphone output will be muted. 8. LED VU output meter: The output to each zone may be monitored visually on the amplifier. The VU meter has three green stages, followed by amber and then red. Care should be taken to avoid the signal level reaching the amber or red zones as this will indicate a clipped signal within the zone mixer. In this instance, the Input Channel and/or Zone Output Level should be reduced. www.cleveracoustics.co.uk ZM4 4 Zone Mixer User Manual...
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On/Off control for the zone amplifier. Note: The on/off power switch does not have any control over the 24V DC power input. 14. AC mains power input: Before connecting the amplifier to the local mains voltage outlet should be checked to ensure the available supply is 240V~AC 50Hz. This product is CLASS1 and requires a protective mains earth to be connected at all times. DO NOT remove or disconnect the earth. 15. AC mains fuse: Disconnect from the mains power supply before attempting to replace the mains fuse. Replacement mains fuses must be the same rating as the original. T3.15AL 250V for 220-240V AC mains supply or T6.3AL 250V for 110-120V AC mains supply. 16. AC voltage selector: The ZM4 zone mixer features a dual voltage mains input. Disconnect the unit from the mains voltage power supply before attempting to change the mains input voltage. Care should be taken to select the appropriate mains input voltage to match that of the mains supply voltage. 17. 24V DC power input: The ZM4 zone mixer features a 24V DC (600mA) power input for operation from a DC backup power supply. When both the DC and AC power inputs are connected, the ZM4 will operate using the AC mains power input and automatically switch to DC operation should the AC power supply fail. Care should be taken to observe the polarity and fuse requirements when connecting the DC power source. www.cleveracoustics.co.uk ZM4 4 Zone Mixer User Manual...
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22. Telephone/paging input zone selection & volume control: The TEL input features zone control and input volume control. To route the TEL signal to a desired output zone, move the corresponding DIP switch to the down (ON) position. The input volume for the TEL signal may be controlled by the recessed volume control potentiometer. For most applications, it may be best practice to set the minimum possible level to prevent unwanted activation of the priority input. Turn the potentiometer clockwise to increase the volume. 23. Stereo LINE inputs: A stereo audio input is provided for sources such as FM Tuners, CD Players or MP3 Players. The input features a pair of unbalanced phono (RCA) inputs suitable for line level audio input. 24. Mono MIC/LINE inputs: Channels 1, 2, 3 & 4 all feature mono audio inputs, each with selector for use with MIC/MIC+Phantom/ Line signals. The audio input is designed to accept a balanced audio signal via XLR or 6.35mm (¼”) TRS jack. 25. Input sensitivity and phantom power control: Channels 1, 2, 3 & 4 each feature switchable inputs for use with MIC/MIC+Phantom/Line signals. The MIC position is designed to accept a balanced, low level signal from a standard dynamic microphone (5mV/1kΩ). The PHANTOM position is designed to provide 15V phantom power across XLR pins 2 & 3 for use with condenser microphones. The LINE position is for use with line level sources such as radio microphone receivers, CD players and FM tuners (100mV/10kΩ), the signal may be inputted using either the balanced XLR or balanced TRS 6.35mm (¼”) jack. www.cleveracoustics.co.uk ZM4 4 Zone Mixer User Manual...
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Operating instructions 26. Balanced line level zone outputs: The ZM4 features four, independent zone outputs each utilising a phoenix type terminal block for the balanced audio output (1.7V). If the amplifier connected only requires an unbalanced signal, the output contacts “+” and “G” should be used. When connecting the outputs, the terminal block may be removed from the ZM4 for ease of termination. (5mV/1kΩ). The PHANTOM position is designed to provide 15V phantom power across XLR pins 2 & 3 for use with condenser microphones. The LINE position is for use with line level sources such as radio microphone receivers, CD players and FM tuners (100mV/10kΩ), the signal may be inputted using either the balanced XLR or balanced TRS 6.35mm (¼”) jack. Power on/off procedure: Prior to making any connection to the mains power or audio inputs/outputs, turn all level controls counter clockwise to the “0” position and all tone (equaliser) controls to the mid (zero) point. Deselect all monitor and zone selection controls. Switch on the zone mixer and any audio sources (MP3 players, CD players, Microphones etc) before powering the systems amplifier ON. The last product to be switched on should be the power/slave amplifiers to prevent any unwanted noise or potential damage to speakers or amplifiers. If you wish to power off the system, turn the amplifier’s master volume control counter clockwise to the “0” position before switching the amplifier OFF before any audio sources are switched off. By following this procedure it will prevent acoustic shocks to the speakers or potential damage to system components. After connecting all audio sources and powering on the system, adjust the level of each audio input, select the zone routing in order to achieve the desired “mix” for each zone. Care should be taken to when adjusting microphone input volumes and the master volume, adjust both of these in small increment’s to avoid feedback (howl around). The goal is to achieve a clear balance between music and voice ensuring announcements can be clearly heard. www.cleveracoustics.co.uk ZM4 4 Zone Mixer User Manual...
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Operating instructions MIC priority: During normal operation the ZM4 features priority for MIC1 over the other microphone and line inputs. For certain applications, the installation engineer may need to defeat the MIC1 priority function. In order to do this, the product must be fully disconnected from any AC or DC power sources, and disconnected from all inputs/outputs. Remove the 12 screws from the outer casing as per the diagram below and keep in a safe location. Remove the upper casing and place to one side. Locate the PCB towards the rear of the unit as pictured below. Carefully move the jumper from the "ON" position to the "OFF" position. Refit the outer casing, taking care to avoid damaging the unit. Refit all of the screws to fully secure the outer casing. Top of Mixer Side 1 of Mixer Side 2 of Mixer Rear of Mixer www.cleveracoustics.co.uk ZM4 4 Zone Mixer User Manual...
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Recorder Recorder Mains PA Amplifier PA Amplifier Battery CD Player AM/FM Tuner Speaker Speaker Horn Horn Column Column speaker speaker speaker speaker Recorder Recorder Recorder PA Amplifier PA Amplifier Speaker Speaker Horn Horn Column Column speaker speaker speaker speaker www.cleveracoustics.co.uk ZM4 4 Zone Mixer User Manual...
WEEE notice Correct Disposal of this Product (Waste Electrical & Electronic Equipment) (Applicable in the European Union and other European countries with separate collection systems) This marking shown on the product or its literature, indicates that it should not be disposed with other household wastes at the end of its working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate this from other types of wastes and recycle it responsibly to promote the sustainable reuse of material resources. Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take this item for environmentally safe recycling. Business users should contact their supplier and check the terms and conditions of the purchase contract. This product should not be mixed with other commercial wastes for disposal. www.cleveracoustics.co.uk ZM4 4 Zone Mixer User Manual...
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