ZM125 ZM75 SAMSON +12 +3 +12dB 0 0 ZM125 0 dB -4 -10 -12 -12dB -20 125 WATT ZONE AMPLIFIER 125Hz MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX ALL 250Hz ZONE 1 500Hz 1kHz ZONE 2 2kHz ZONE 3 4kHz ZONE 4 8kHz ZONE 5 ON OFF SAMSON +12 +3 +12dB 0 0 ZM75 0 dB -4 -10 -12 -12dB -20 75 WATT ZONE AMPLIFIER 125Hz MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX ALL 250Hz ZONE 1 500Hz ZONE 2 1kHz 2kHz ZONE 3 4kHz ZONE 4 8kHz Z
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Safety Instructions/Consignes de sécurité/Sicherheitsvorkehrungen/Instrucciones de seguridad WARNING: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. To reduce the hazard of electrical shock, do not remove cover or back. No user serviceable parts inside. Please refer all servicing to qualified personnel.
Table of Contents Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ZM Series Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ZM Series Layout - Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ZM Series Layout - Rear Panel. . . . . . . . . . . . . .
Introduction Thank you for purchasing the ZM series mixer/amplifier from Samson Technologies! The ZM series mixers provide an ideal solution for small to medium size commercial sound system installations. This manual covers two models: the ZM75 and the ZM125. Both ZM series models feature a built in constant voltage power amplifier capable of running at 25, 70 or 100 volts or at low impedance 4-ohm operation. The ZM75 provides 75 watts, while the ZM125 provides 125 watts of clean power.
ZM Series Features SAMSON +12 +3 +12dB 0 0 ZM125 0 dB -4 -10 -12 -12dB -20 125 WATT ZONE AMPLIFIER 125Hz MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX ALL 250Hz ZONE 1 500Hz ZONE 2 1kHz 2kHz ZONE 3 4kHz ZONE 4 8kHz ZONE 5 ON OFF The ZM75 and ZM125 powered zone mixers are perfect for small to medium size commercial sound system installations.
ZM Series Layout - Front Panel 1 2 3 4 SAMSON +12 +12dB +3 0 dB -4 5 0 0 ZM125 -10 -12 -12dB -20 125 WATT ZONE AMPLIFIER 125Hz MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX ALL 250Hz ZONE 1 500Hz 1kHz ZONE 2 2kHz ZONE 3 4kHz ZONE 4 8kHz ZONE 5 ON OFF 6 7 1. EXPANSION BAY – You can add background music or pre-recorded announcements by installing the optional Samson TCM-3 CD and MP3 player with AM/FM tuner module in this compartment. 8 9 10 11 8.
ZM Series Layout - Rear Panel 1 2 3 OUTPUT COM Constant Voltage 100V/70V/25V Lo-Z FM 75 4 5 300 MUSIC ON HOLD CHIME MAX MIN VOLUME PRE-AMP OUT SAMSON 230 V 115 V ZM125 125 WATT ZONE AMPLIFIER 8 AMP IN MIN FUSE T2AL/250V 7 6 AVIS RISQUE DE CHOC ELECTRONIQUE NE PAS OUVRIR CAUTION FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY SAME TYPE FUSE ATTENTION UTILISER UN FUSIBLE DE RECHANGE MEME TYPE -6/+14 -50/-30 -6/+14 GAIN -50/-30 GAIN -6 -50 -6 GAIN -50 -6 GAIN
Designing an Installation Plan Designing an Installation Plan If you are a professional installer, you’ll probably want to skip over this section, however if you are setting up your system for the first time, this section can help make your installation a little bit easier. Before you start plugging, stripping and connecting wires, it is a good idea to have a clear installation plan.
Designing an Installation Plan Now, take some time to consider where you need to have sound in your particular installation. After you have decided where you need to create sound zones, you can consider your speaker selection, but first decide where you are going to locate your equipment rack. Using Passive Speakers If you are using passive (un-powered) speakers, you need to first decide where you will place your ZM series mixer/amplifier.
Designing an Installation Plan Using A Constant Voltage Speaker System - continued The same principle is applied in constant voltage audio systems where a transformer is connected to the amplifier’s output to step up the voltage while lowering the output current, which allows you to use long runs of smaller gauge wire to connect to a series of speakers with step down transformers.
Operating The ZM Series Setting up the ZM series Setting up your ZM Series is a simple procedure, which takes only a few minutes: For 70-volt operation, connect the positive input of the speaker to the 70 Volt terminals and connect the negative input the COM (ground) terminal.
Operating The ZM Series Pre Announcement Chime The ZM series mixer offers a useful Chime function to alert listeners of an upcoming page. Simply press the front panel Chime switch to play the chime. Connecting the Input Sources Next, make the signal input connections, using the Euroblock input connectors on the rear panel.
Operating The ZM Series Using Music On Hold The ZM series include a MOH (Music On Hold) function allowing you to connect the ZM series to a business telephone system. With MOH, when customers call in to the business and are put on hold, they hear background music from an external source or from the internal source if the optional TCM-3 tuner/CD player is installed. You can make the call-in experience more pleasant or take advantage of valuable time by playing a pre-recorded commercial message using MOH.
ZM Series System Set Up The following is a typical constant voltage system setup for a small restaurant using the ZM125 mixer/amplifier feeding several audio zones with paging and music. The first two ZM Series constant voltage outputs are connected to two ceiling speakers in each of the Dining Rooms with their transformers set to a 12 watt tap. The third constant voltage output powers two speakers in the outside Bar area with their transformers set to 25 watt.
ZM Series Input Wiring Guide ZM Series Input Wiring Guide There are several ways to interface the ZM Series amplifers, depending on your exact system set-up. Follow the cable diagrams below for connecting to the input of your amplifier.
ZM Series Output Wiring Guide ZM Series Output Wiring Guide There are several ways to interface the ZM Series amplifers, depending on your exact system set-up. For most small to medium installations, 14 to 16 gauge zip cord can be used. Follow the cable diagrams below for connecting to the input of your amplifier. 4 Ohm Wiring Guide Negative Constant Voltage Wiring Guide Negative Follow the guidelines below to select the appropriate size wire based on the distance from the amplifier to the speaker.
Specifications ZM75 Input Sensitivity for full output at maxi mum gain Frequency Response Graphic Equalizer ZM125 Balanced Microphone Channels -50dBV ± 3dB Balanced Line Channels -22dBV ± 3dB Balanced Remote Microphone Station -50dBV ± 3dB Balanced Telephone Paging -21dBV ± 3dB Unbalanced Link-In -17dBV ± 3dB Unbalanced Amp-In 0dB ± 3dB at 1 watt from speaker out tap.100Hz~10kHz +1.
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Samson Technologies Corp. 45 Gilpin Avenue Hauppauge, New York 11788-8816 Phone: 1-800-3-SAMSON (1-800-372-6766) Fax: 631-784-2201 www.samsontech.