General notes General notes This user manual contains important information on safe operation of the device. Read and follow all safety notes and all instructions. Save this manual for future reference. Make sure that it is available to all persons using this device. If you sell the device to other users, be sure that they also receive this manual.
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This combination of symbol and signal word indicates a pos‐ sible 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. ZM 4...
Safety instructions 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.
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They could swallow the pieces and choke! Never let children unattended use electrical devices. DANGER! Electric shock caused by high voltages inside Within the device there are areas where high voltages may be present. Never remove any covers. There are no user-serviceable parts inside. ZM 4...
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Safety instructions DANGER! Electric shock caused by high voltages at the power amplifier output 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! Electric shock caused by short-circuit Always use proper ready-made insulated mains cabling (power cord) with a pro‐...
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NOTICE! Risk of fire Do not cover the device nor any ventilation slots. Do not place the device near any direct heat source. Keep the device away from naked flames. ZM 4...
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Safety instructions NOTICE! Operating conditions This device has been designed for indoor use only. To prevent damage, never expose the device to any liquid or moisture. Avoid direct sunlight, heavy dirt, and strong vibrations. NOTICE! Power supply Before connecting the device, ensure that the input voltage (AC outlet) matches the voltage rating of the device and that the AC outlet is protected by a residual current circuit breaker.
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Pay attention to the polarity marking! To disconnect the bat‐ tery, unscrew the cables on the battery first, then on the terminals of the device. Also pay attention to the safety instructions of the battery manufacturer. ZM 4...
Features Features 4 microphone/line inputs 4 line outputs AUX inputs Phantom power Telephone paging Priority control Screw terminals for the connection of speakers and off-grid voltage supply zone mixer...
Establish all connections as long as the unit is switched off. Use the shortest possible high- quality cables for all connections. 4.1 Pin assignment You can use XLR and 1/4" plugs with balanced or unbalanced wiring. In the following, we will give you an overview of the various options. ZM 4...
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Installation and starting up XLR connections for signal Balanced XLR sockets serve as signal inputs. Drawings and tables indicate the XLR pin assign‐ inputs ment. Balanced wiring: Ground, shielding Positive signal (+) Negative signal (–) Unbalanced wiring: Ground, shielding Signal Bridged to pin 1 zone mixer...
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Phone sockets for signal inputs Drawings and tables indicate the pin assignment of 1/4" phone plugs to be used. Unbalanced wiring of a TS plug: Signal Ground, shielding Unbalanced wiring of a TRS plug: Signal 2, 3 Ground, shielding ZM 4...
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Installation and starting up Balanced wiring of a TRS plug: Positive signal (+) Negative signal (–) Ground, shielding zone mixer...
Connections and operating elements Connections and operating elements Front panel ZM 4...
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Connections and operating elements 1 Gain Input gain control for each channel (CH 1 to CH 5). Turn the knob to adjust the input gain within a range of –10 to +20. 2 High Control to increase or attenuate the high frequencies in each channel (CH 1 to CH 5). Turn the knob to adjust the input gain within a range of –10 to +10.
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Lights up when the device is switched on and operational. 11 ON / OFF Mains switch to turn the device on and off. 12 Monitor Volume Volume control for the monitor outputs on the rear panel of the zone mixer. ZM 4...
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Connections and operating elements 13 Phone Headphones output. 14 Phone Volume Volume control for the headphones output of the zone mixer. zone mixer...
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Connections and operating elements Rear panel ZM 4...
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Connections and operating elements 15 IEC chassis connector with fuse holder for operating voltage supply. 16 115V /230V Operating voltage selector (115 V or 230 V , factory preset). 17 Screw terminal bar to connect speakers and telephone system(s): Monitor Line Out: Line out to connect an amp or recording device. Monitor 1W 8Ω: Output to connect an 8 Ω...
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Connect the shielded audio cable to the 'COM' terminal, ground wire to 'GND' and the circuit breaker to release announcements to 'HOT' and 'GND'. So the audio signal is perma‐ nently present on the 'COM' terminal and closing the breaker superimposes all other channels. ZM 4...
Technical specifications Technical specifications Frequency response 20 Hz … 22 kHz (±2 dB) Max. input gain Main out: 60 dB CH MIC IN (XLR, balanced) Rec out: 50 dB CH MIC IN (unbalanced) Mic. out: 60 dB CH MIC IN (unbalanced) Mono out: 60 dB CH MIC IN (unbalanced) Tone stack Treble: ±10 dB...
115 V: 5 mm x 20 mm, 630 mA, 250 V, slow blow 230 V: 5 mm x 20 mm, 315 mA, 250 V, slow blow Dimensions (W × H × D) 483 mm × 44 mm × 195 mm Weight 2.9 kg ZM 4...
Protecting the environment Protecting the environment Disposal of the packaging mate‐ rial For the transport and protective packaging, environmentally friendly materials have been chosen that can be supplied to normal recycling. Ensure that plastic bags, packaging, etc. are properly disposed of. Do not just dispose of these materials with your normal household waste, but make sure that they are collected for recycling.
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