Cloud USA 46-120 4-Zone 2U Rack-Mountable Mixer Amplifier

Cloud USA 46-120 4-Zone 2U Rack-Mountable Mixer Amplifier

Cloud USA 46-120 4-Zone 2U Rack-Mountable Mixer Amplifier

B&H # CL46120 MFR # 46-120
Cloud USA 46-120 4-Zone 2U Rack-Mountable Mixer Amplifier

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Expected availability: 7-10 business days

Configuration: Without Transformer

With Transformer

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Without Transformer

Power Output: 4 x 120 W

4 x 50 W

Not available with current selections

4 x 120 W

This item is noncancelable and nonreturnable.

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Cloud USA 46-120 overview

  • 1Description

The 46-120 4-Zone 2U Rack-Mountable Mixer Amplifier from Cloud USA combines simple control of background music, microphone paging, and power amplification for up to four zones in a single unit. It is suitable for use in many types of premises, such as pubs, bars, clubs, leisure, and fitness centers, shops, offices, hotels, and more. It has six stereo line inputs and two microphone inputs; one mic input can be configured for paging purposes. Each line and mic input has its own preset sensitivity control on the rear panel, and each mic input additionally has HF/LF EQ adjustment to optimize the inputs for better clarity.

The 46-120 has four mono zone outputs, each being driven by a 120W power amplifier stage. Pre-power stage outputs (0 dBu, unbalanced) are also provided for Zones 1 and 2. Line 6 input may be set to have priority over any other selected music source in Zone 1, to facilitate connection of a jukebox, digital sound store, or similar device. The priority feature has selectable release times, to allow a smooth return to the original music source.

A transformer-isolated auxiliary output is also available which may be used as an interface to telephone MOH systems, or as a utility output to drive a local rack monitor or an induction loop amplifier. This output may be selected by internal jumper to either follow Zone 1's selected music source summed with Mic 1, be permanently fed with any one of the music sources. Separate rear panel preset controls are provided to set the music and Mic 1 levels at this output.

The mixer amplifier is compatible with all Cloud PM Series paging microphones. The paging mic input can be configured to suit most OEM paging systems. Zone selection for paging is via short-to-ground access connections, and the unit may be configured by internal jumper for automatic music ducking (mic-over-music priority), triggered by VOX control. Furthermore, this mixer amplifier features a Facility Port that allows remote input plates of various types (sold separately) to be connected so that mic and/or line sources such as radio mics, DJ mixers, iPods, laptops, or other audio sources can be connected in the zone itself. A remote Music Mute facility is provided, which can be used to satisfy the requirements of the Local Fire Officer.


With Standard Cloud Remote Control Panels: RL Series (music level) and RSL Series (music level and source selection), per-zone


2U 19" rack-mounting unit
Eight input (6 x line, 2 x mic) mixing amplifier for four zones
Provides flexible music, paging, and announcement facilities in each zone
4 x 120W power output (4 Ohms)
Dynamic clip limiting in power amplifier stage
Zones 1 & 2 auxiliary line level outputs (pre-power amplifier), for connection of additional external amplifiers
Transformer-isolated auxiliary output with independent mic and music level control for use with telephone MOH systems
Aux output source selection (internal jumper) fixed source or mix of Mic 1 and Zone 1 music source
Front panel user controls for music source, music level, and level of each microphone, for each zone
Front panel preset controls for HF/LF EQ for each zone output
Six (unbalanced) stereo line inputs with individual gain trim controls
Contact closure access port for paging zone selection
Selectable VOX-triggered mic-over-music priority
Sensitivity and HF/LF EQ adjustment for mic input (rear panel)
Selectable Line 6 priority in Zone 1, with choice of release times
Two balanced mic inputs; 15 V phantom power selectable on either or both
MIC 1 input can be configured as telephone system interface
Zone 1 Facility Port for connection of optional LM-1 (mic/line) remote input/control modules via screened Cat5
Facility Port may also be used as additional balanced line input to Zone 1
Selectable 65 Hz high-pass filter per-output (for use with 70V line systems)
Music mute control input (N/O or N/C) for interface to emergency system
EQ cards (sold separately) to suit various popular installation loudspeakers may be fitted in any or all outputs
In the Box
Cloud USA 46-120 4-Zone 2U Rack-Mountable Mixer Amplifier
  • Limited 5-Year Warranty
  • Table of Contents
    • 1Description

    Cloud USA 46-120 specs

    Line Inputs
    Frequency Response 20 Hz to 20 kHz, +/-0.5 dB
    THD + N 0.04% @ 1 kHz; 22 kHz bandwidth
    Sensitivity 195 mV (-12 dBu) to 2.0 V (+8 dBu)
    Input Gain Control 20 dB range
    Input Impedance 47 kOhms
    Headroom 17 dB
    Noise -90 dB rms; 22 kHz bandwidth
    Equalization HF: ±10 dB @ 10 kHz
    LF: ±10dB @ 50 Hz
    Microphone Inputs
    Frequency Response 100 Hz -3 dB (fixed filter) to 20 kHz ±1 dB
    Distortion <0.03% @ 1 kHz, 80 kHz bandwidth
    Gain Range 10 to 50 dB
    Common Mode Rejection 70 dB typical
    Input Impedance 3.3 kOhms (balanced)
    Headroom 17 dB
    Noise -127 dB EIN 22 Hz to 22 kHz (Rs = 150 Ohms)
    Equalization HF: ±10 dB @ 5 kHz
    LF: ±10 dB @ 100 Hz
    Low Impedance 4 Ohm Load: 120 W (170 W one channel driven) @ 1 kHz & 0.1% THD+N
    8 Ohm Load: 85 W (100 W one channel driven) @ 1 kHz & 0.1% THD+N
    Frequency Response: -1 dB @ 20 kHz,-0.5 dB @ 20 kHz
    Distortion: <0.04% @ 1 kHz, 80 kHz bandwidth
    Outputs 100 V-Line Balanced: 83 Ohms minimum load
    70 V-Line Balanced: 42 Ohms minimum load
    Frequency Response: -3 dB @ 65 Hz (filter), -2.5 dB @ 20 kHz
    Distortion: <0.06% @ 1 kHz, 80 kHz bandwidth
    Amplifier Protection Dynamic clip protection, VI limiting, DC offset, thermal & switch-on delay
    Cooling Variable speed DC fan
    Power Input 230 V ±5% (115 V ±5% by internal connection)
    Fuse Rating 230 V: T4A
    100/115 V: T8A
    Fuse Type: 0.7 x 0.2" (20 x 5 mm)
    Power Consumption External remote power-down 4.7 W / 7.75 VA
    Idle - 4 chs APD 13.4 W / 16.75 VA
    Idle - 3 chs APD 16.3 W / 20.5 VA
    Idle - 2 chs APD 19.2 W / 24.9 VA
    Idle - 1 ch APD 22.2 W / 29.4 VA
    Idle, all chs active 25.2 W / 33.6 VA
    Noise input,1/3 rated power, 4 Ohms 440 W / 560 VA
    Noise input,1/3 rated power,8 Ohms 275 W / 362 VA
    Noise input,1/8 rated power,4 Ohms 280 W / 370 VA
    Noise input,1/8 rated power,8 Ohms 175 W / 240 VA
    Dimensions 19 x 3.5 (2 U) x 16" (48 x 8.9 x 41 cm)
    Weight 26.3 lb (11.9 kg)

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