Samson ZM125 Owner's Manual
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Samson ZM125 Owner's Manual

Zm series, 5-zone public address amplifier
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ZM125
ZM75
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
SAMSON
+12
0
ZM125
-12
125 WATT ZONE AMPLIFIER
125Hz
250Hz
500Hz
1kHz
2kHz
MAX
MIN
MAX
ALL
ZONE 1
ZONE 2
ZONE 3
SAMSON
+12
0
ZM75
-12
75 WATT ZONE AMPLIFIER
125Hz
250Hz
500Hz
1kHz
2kHz
MAX
MIN
MAX
ALL
ZONE 1
ZONE 2
ZONE 3
+3
+12dB
0
0 dB
-4
-10
-12dB
-20
4kHz
8kHz
ZONE 4
ZONE 5
ON
OFF
+3
+12dB
0
0 dB
-4
-10
-12dB
-20
4kHz
8kHz
ZONE 4
ZONE 5
ON
OFF

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Summary of Contents for Samson ZM125

  • Page 1 ZM125 ZM75 SAMSON +12dB 0 dB ZM125 -12dB 125 WATT ZONE AMPLIFIER 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5 SAMSON +12dB 0 dB ZM75 -12dB 75 WATT ZONE AMPLIFIER 125Hz...
  • Page 3 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 ATTENTION: Pour éviter tout risque d’électrocution ou d’incendie, ne pas exposer or moisture. To reduce the hazard of electrical shock, do not remove cover or back. cet appareil à...

  • Page 4: Table Of Contents

    Block Diagram ..............15 Copyright 2007 Printed December, 2007 v1.0 Samson Technologies Corp. 45 Gilpin Avenue Hauppauge, New York 11788-8816...

  • Page 5: Introduction

    This manual cov- ers 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 pro- vides 75 watts, while the ZM125 provides 125 watts of clean power.

  • Page 6: Zm Series Features

    LINK and Pre- • The ZM series provide plenty of available power, amp terminals. with 75 watts ZM75 and 125 watts for the ZM125. • The ZM series features advanced electric circuit • A built-in seven-band graphic equalizer is design with high quality op-amps providing low included to adjust the sound system’s overall...

  • Page 7: Zm Series Layout - Front Panel

    3. PROTECT (LED indicator) – When illuminated, 11. POWER (switch) - Use this to power the ZM75 the unit is in Protect mode and the outputs will and ZM125 on or off. The POWER LED lights be muted. whenever the ZM series is powered on.

  • Page 8: Zm Series Layout - Rear Panel

    REMOTE MIC LINE/ SAMSON FUSE T2AL/250V LINE EXT. MOH PHANTOM PHANTOM LINK IN WARNING CAUTION ZM125 125 WATT ZONE AMPLIFIER 230 V DO NOT EXPOSE FOR CONTINUED THIS EQUIPMENT PROTECTION AGAINST GAIN TELE-PAGING TO RAIN OR RISK OF FIRE, REPLACE...

  • Page 9: Designing An Installation Plan

    If you are using multiple sound sources, you'll need some type of mixer and for fixed installations, a zone mixer like the Samson ZM series is ideal. The ZM series provides six input channels with the ability to con- nect up to six input sources. On input Channel’s 1 and 2 there is an input for connecting microphones with phantom power to operate condenser type mics.
  • Page 10 Samson SRK series. To select a good location for your amplifiers in the equipment rack to the speakers located equipment rack, you should consider several points in the sound zone room.
  • Page 11 Today, there are a large number of installation speakers available from various manufacturers that include onboard transformers for constant voltage systems. Many of these models, like the Samson dB300i, include selectable power taps on the transformer allowing you to distribute the power efficiently through the number of installed speakers and also adjust some speakers to different output levels.

  • Page 12: Operating The Zm Series

    19” rack (like the SRK equipment racks from Samson), requiring only two rack spaces. Install the rack ears by aligning them to the side of the unit, flush to the front and install the supplied screws.

  • Page 13: Operating The Zm Series

    Operating The ZM Series Pre Announcement Chime Connecting the Input Sources The ZM series mixer offers a useful Chime function to alert Next, make the signal input connections, using the Euroblock listeners of an upcoming page. Simply press the front panel input connectors on the rear panel.

  • Page 14: Operating The Zm Series

    8kHz If you encounter difficulty with any aspect of setting up or using your ZM Series, contact your local Samson dealer. If Using External Effects AMP IN and PRE-AMP OUT purchased in the United States, you can call Samson Technical The ZM series provides a convenient patch point between the Support (1-800-372-6766) between 9 AM and 5 PM EST.

  • Page 15: Zm Series System Set Up

    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.

  • Page 16: Zm Series Input Wiring Guide

    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. Male XLR to Female XLR (balanced) Hot (2) Hot (2) Common (1)

  • Page 17: Zm Series Output Wiring Guide

    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.

  • Page 18: Specifications

    Specifications ZM75 ZM125 Balanced Microphone Channels -50dBV ± 3dB Balanced Line Channels -22dBV ± 3dB Balanced Remote Microphone Station -50dBV ± 3dB Input Sensitivity for full output at maxi - mum gain Balanced Telephone Paging -21dBV ± 3dB Unbalanced Link-In -17dBV ±...

  • Page 19: Block Diagram

    Block Diagram...
  • Page 20 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.com...

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Zm75

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