Shop

Description

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.

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

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 kohms
Headroom: 17 dB
Noise: <-88.5 dB (nominal gain, max level, 22 Hz to 22 kHz)

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: <0.05%, 1 kHz sine wave
Gain Range: 10 dB to 48 dB
Common mode rejection: <58 dB @ 1 kHz
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: <0.01% @ 1 kHz
Nominal level: 0 dBu (0.775 Vrms)

Aux Outputs (Zones 1 & 2)

Frequency Response: ±0.5 dB, 20 Hz to 20 kHz
THD + N: <0.05% @ 1 kHz
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:

Standby1: 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)

Physical Dimensions

Dimensions (w x h x d): 482.6 mm x 88 mm (2U) x 320 mm

Weight: 8.6 kg