An Image of the front of the Cloud Mixer Amp showing the four zones of control
An Image of the back of the cloud mixer amp showing the available ports and connections

Cloud 46-80 4 Channel Mixer Amplifier 4x80W
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£1,038.36 inc VAT

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The Cloud 46-80 is a versatile, four-zone, rack-mounting (2U) audio mixing amplifier. It combines simple control of background music, microphone paging and power amplification for up to four zones in a single unit. It has extensive remote control facilities and is ideal for installation in premises such as pubs, bars, hotels, clubs, leisure and fitness centres, retail and other commercial premises, etc.

The 46-80 has four mono zone outputs, each driven by an 80 W (nominal rating) power amplifier stage: if less than four separate zones are required, the power stages may be paralleled by moving internal jumpers to permit dual stereo, quad mono or stereo + dual mono operation, with accordingly increased output power. The power stages have extensive protection circuitry to safeguard both the amplifier and loudspeakers.

Key Features of Cloud 46-80 4 Channel Mixer Amplifier 4x80W

  • Eight input (6 x line, 2 x mic) mixing amplifier for four zones
  • 4 x 80 W power output, 70/100 V-line version also available (46-80T)
  • CXL-80T 70/100 V-line transformers may be retrofitted per-channel to 46-80
  • Slave mode: power amplifier stages may be paralleled in various configurations and fed from a single programme source
  • Peak limiter to protect power amplifier stages and loudspeakers
  • Utility/Loop output with independent mic/music mix and user-definable music source
  • Balanced, line level aux outputs (pre-power stage) from Zones 1 and 2
  • Four balanced and two unbalanced stereo line inputs with individual gain trim controls
  • Two balanced mic inputs; 15 V phantom power selectable on either or both
  • Zone 1 Facility Port for connection of optional remote input plates: LM-2 mic/line input + music controls, BT-1 Bluetooth input, L-1 line input, M-1 mic input
  • Music Mute control input (N/O or N/C) for emergency alarm system
  • Compatible with standard Cloud remote control panels: RL Series (music level) and RSL Series (music level and source selection), per-zone
  • RS-232 port for serial control of per-Zone MIC 1 muting, music level and source plus global unit standby, Music Mute and MIC 2 muting
  • User–selectable Automatic Power Down for maximum energy efficiency
  • Convection-cooled (no fan): silent in operation

Specifications

Line Inputs 1 & 2 (unbalanced)

  • Frequency Response ±0.5 dB, 20 Hz to 20 kHz
  • THD + N
  • Sensitivity 195 mV (-12 dBu) to 2.0 V (+8 dBu)
  • Gain control range -10 dB to +10 dB
  • Input Impedance 10.2 kohms
  • Headroom 17 dB
  • Noise

Line Inputs 3 to 6 (balanced)

  • Frequency Response -0.5 dB @ 20 Hz; -0.5 dB @ 20 kHz
  • THD + N 0.015%, 1 kHz sine wave
  • Sensitivity 195 mV (-12 dBu) to 2.0 V (+8 dBu)
  • Gain control range -9 dB to +11 dB
  • Input Impedance 10.2 kohms
  • Headroom 17 dB
  • Noise -88.5 dB (nominal gain, max level, 22 Hz to 22 kHz)

Microphone Inputs

  • Frequency Response -6 dB @100 Hz (fixed filter) to ±1 dB @ 20 kHz
  • THD + N
  • Gain Range 10 dB to 48 dB
  • Common mode rejection
  • Input Impedance 3.3 kohms (balanced)
  • Headroom 18 dB
  • Noise (EIN) -127.2 dB; 22 Hz to 22 kHz, maximum gain, Rs = 150 ohms
  • Phantom Power 15 V, individually selectable
  • Equalisation HF: ±10 dB @ 5 kHz; LF: ±10 dB @ 100 Hz

Main Outputs

  • Low Impedance Outputs (Model 46-80): 80 W into 4 ohms
  • High Impedance 100 V operation 80 W constant voltage into 125 ohm minimum load
  • Outputs (Model 46-80T) 70 V operation 70.7 W constant voltage into 62.5 ohm minimum load
  • Amplifier protection Fixed level signal limiter, protection against DC, over current, over temperature
  • Cooling Natural convection

Utility/loop Output

  • Frequency Response ±0.5 dB, 20 Hz to 20 kHz
  • THD + N
  • Nominal level 0 dBu (0.775 Vrms)

Aux Outputs (Zones 1 & 2)

  • Frequency Response ±0.5 dB, 20 Hz to 20 kHz
  • THD + N
  • Nominal level 0 dBu balanced (0.775 Vrms)

General

  • Power Input 85 to 243 VAC, 47 to 63 Hz
  • Normal operating temperature 0 °C to 35 °C (Note: performance and specifications cannot be guaranteed outside of this range)

    • Power consumption

  • Standby 1 8.6 W, 27.5 VA, Idle2 20.3 W, 38.6 VA
  • 1/8th Power (4 ohms)3 Lo-Z output (4 ohms): 64.9 W, 85.2 VA
  • Hi-Z output (100 V into 125 ohms): 92 W, 109.7 VA
  • 1/3rd Power (4 ohms)4 Lo-Z output (4 ohms): 126 W, 154 VA
  • Hi-Z output (100 V into 125 ohms): 176 W, 198 VA

    • Heat Loss

  • Standby1 30.8 kJ/hr (29 BTU/hr), Idle2 72 kJ/hr (69 BTU/hr)
  • 1/8th Power (4 ohms)3 Lo-Z output (4 ohms): 103 kJ/hr (98 BTU/hr)
  • Hi-Z output (100 V into 125 ohms): 187 kJ/hr (177 BTU/hr)
  • 1/3rd Power (4 ohms)4 Lo-Z output (4 ohms): 129 kJ/hr (122 BTU/hr)
  • Hi-Z output (100 V into 125 ohms): 287 kJ/hr (272 BTU/hr
  • Dimensions (w x h x d) Net 482.6 mm x 88 mm (2U) x 320 mm, 19” x 3.5” x 12.6”, Shipping (Gross) 610 mm x 200 mm x 460 mm, 24” x 8” x 18”
  • Weight Net 46-80: 5.5 kg / 12.3 lbs 46-80T: 8.6 kg / 19.3 lbs
  • Shipping (Gross) 46-80: 8 kg / 17.9 lbs 46-80T: 11.1 kg / 24.9 lbs

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