The MA40F is a mini amplifier providing 40W Output at 4Ω (low impedance). It is fitted with a paging microphone input with access contacts, a useful 70/100V line input option, a further two line inputs and a facility port input option allowing connection of the LM-2 wall input module and the new Cloud BT-1F Bluetooth Audio Wireless input module.

The MA40F is powered via a 12-24V power supply and offers music mute functionality to allow simple connection to fire alarm and other interfaces which makes it highly flexible and suitable for use in themed/visitor attractions including use in bus / tram / river tour guide systems.

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Product Features

• Compact mono amplifier modules for “install-and-forget” situations
• Two (unbalanced) stereo line inputs with individual sensitivity trims
• Electronically-balanced mic input with separate gain control
• Phantom power selectable by internal jumper
• Front panel control of music level and mic levels
• HF & LF EQ adjustments for music sources
• MIC input configurable for direct connection to 100/70 V-line system: allows amplifier to receive announcements from main building PA/VA system
• MIC input can be used with paging mics
• Paging configurable as automatic voice-over-music (VOX mode) or contact closure via access port
• Selectable LINE 1-over-LINE 2 priority
• Facility port for connection of LM-2 remote mic/line input module via screened Cat 5 cable; also allows remote control of music level
• 40W power amplifier
• Music Mute control input (N/O or N/C) for interface to emergency system
• Selectable 65 Hz high-pass filter for use with 100/70/25 V-line systems
• Optional EQ cards available to suit various popular installation loudspeakers
• Automatic power-down function (user-selectable)
• Less than 1 W power consumption in sleep mode
• Convection cooled – silent in operation.
• PSU meets US DoE Level VI energy requirements
• Power requirements: 12 to 24 V DC, 47 W
• Universal AC adaptor included (both models), operates from 100 to 240 V AC

Product Specifications

General

• Line inputs
  • Frequency Response ±1 dB, 20 Hz to 20 kHz
  • Distortion <0.1 %
  • Sensitivity 0.2 V (-12 dBu) to 1.95 V (+8 dBu)
  • Input Gain Control 20 dB range
  • Input Impedance 10 kohms (unbalanced)
  • Headroom >12 dB
  • Noise <-90 dB
  • Equalisation LF: ±10 dB @ 50 Hz, HF: ±10 dB @ 10 kHz
• Facility input
  • Input Impedance 10 kohms (balanced)
  • Sensitivity 0.775 V (0 dBu)
• Microphone input
  • Frequency Response -3dB @ 120 Hz (filter) to 20 kHz ±1 dB
  • Distortion <0.1%
  • Gain 10 dB to 50 dB
  • Input Impedance >2 kohms (balanced)
  • Headroom >12 dB
  • Noise <-90 dB
  • Phantom Power +12 V (internal jumper)
• Output
  • Output Power (1 kHz continuous sine wave) 40 W, DC input >18 V
• General
  • Power Input: 12 V to 24 V DC
  • Power consumption 47 W
  • External AC PSU adaptor Universal type, 100 V to 240 V, 47 to 63 Hz
  • Amplifier protection Fixed level signal limiter, Protection against DC, PSU overcurrent, amplifier overcurrent, over-temperature, supply voltage under/over-voltage, Resettable internal breaker (no fuses)

Physical & Dimensions

• Height: 41mm
• Width: 220mm
• Depth: 144.5mm
• Weight: 750 g

Need help understanding which Cloud wall panel accessories are compatible with their range of amplifiers or mixers? Download our free guide now.