Cloud 46-80 Four Zone Integrated Mixer Amplifier, 80W @ 4 Ohms

The Cloud 46-80 Four Zone Integrated Mixer Amplifier 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.

Cloud 46-80 Four Zone Integrated Mixer Amplifier, 80W @ 4 Ohms Features

- 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

Cloud 46-80 Four Zone Integrated Mixer Amplifier, 80W @ 4 Ohms Specifications

Line Inputs 1 & 2 (Unbalanced)
- Frequency Response: ±0.5 dB, 20 Hz to 20 kHz
- THD+N: <0.02%, 1 kHz sine wave
- Sensitivity: 195 mV (-12 dBu) to 2.0 V (+8 dBu)
- Gain Control Range: -10 dB to +10 dB
- Input Impedance: 10.2 kΩ
- Headroom: 17 dB
- Noise: <-88.5 dB (nominal gain, max level, 22 Hz to 22 kHz)

Line Inputs 3 & 6 (Balanced)
- Frequency Response: -0.5 dB, 20 Hz to 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 kΩ
- Headroom: 17 dB
- Noise: <-88.5 dB (nominal gain, max level, 22 Hz to 22 kHz)

Microphone Input
- Frequency Response: -6 dB @ 100 Hz (filter) to 20 kHz ±1 dB
- THD+N: <0.05% (1 kHz sine wave)
- Gain: 10 dB to 48 dB
- Common mode rejection: <58 dB @ 1 kHz
- Input Impedance: 3.3 kΩ (balanced)
- Headroom: 18 dB
- Noise: EIN -127.2 dB (22 Hz to 22 kHz, maximum gain, Rs = 150 Ω)
- Phantom Power: +12 V (internal jumper)
- Mic Equalisation:
  - LF: ±10 dB @ 100 Hz
  - HF: ±10 dB @ 5 kHz

Main Output
- Output Power (1 kHz continuous sine wave): 80 W into 4 ohmsUtility/Loop Output
- Frequency Response: ±0.5 dB, 20 Hz to 20 kHz
- THD + N: <0.01% @ 1 kHz
- Nominal level: 0 dBu (0.775 Vrms)

Auxilury Outputs (Zones 1 & 2)
- Frequency Response: ±0.5 dB, 20 Hz to 20 kHz
- THD + N: <0.05% @ 1 kHz
- Nominal level: 0 dBu (0.775 Vrms)

General
- Power Supply (internal): Universal type, 85 to 243 VAC, 47 to 63 Hz
- Power consumption
  - Standby: 8.6 W, 27.5 VA
  - Idle: 20.3 W, 38.6 VA
  - 1/8th Power (4 ohms): 64.9 W, 85.2 VA
  - 1/3rd Power (4 ohms): 126 W, 154 VA
- Heat Loss
  - Standby: 30.8 kJ/hr (29 BTU/hr)
  - Idle: 72 kJ/hr (69 BTU/hr)
  - 1/8th Power (4 ohms): 103 kJ/hr (98 BTU/hr)
  - 1/3rd Power (4 ohms): 129 kJ/hr (122 BTU/hr)
- Amplifier protection: Fixed level signal limiter. Protection against DC, PSU overcurrent, amplifier overcurrent, over-temperature. Resettable internal breaker (no fuses)
- Cooling: Natural convection
- Dimensions(w x h x d): 482.6 x 88 x 320 mm, 19 x 3.5 x 12.6 inches
- Weight: 8 kg / 17.9 lbs