| Communications |
| Ethernet |
10/100 Mbps, auto-switching, auto-negotiating, auto-discovery, full/half duplex, TCP/IP, UDP/IP, CIP, DHCP, SSL, SSH, SFTP (SSH File Transfer Protocol) |
| USB Device |
USB device port for computer console (setup) |
| Audio |
| Input Signal Types |
Balanced or unbalanced analog line-level |
| Output Signal Types |
4/8 Ohm;
70 Volt direct-coupled (AMP-8075 only);
100 Volt direct-coupled (AMPI-8075 only) |
Operating Modes
(Configurable via Crestron Avia Audio Tool software) |
Mono: Each channel is configurable to operate independently from all other channels;
Stereo: Adjacent channels (1&2, 3&4, 5&6, 7&8) are configurable to operate as a stereo pair with linked control settings;
Bridged: Adjacent channels (1&2, 3&4, 5&6, 7&8) are configurable to operate as an 8 Ohm bridged mono output;
4/8Ω Mode: Each channel is configurable for 4/8 Ohm “Lo-Z” output;
70V Mode (AMP-8075 only): Each channel is configurable for 70 Volt “Hi-Z” output;
100V Mode (AMPI-8075 only): Each channel is configurable for 100 Volt “Hi-Z” output |
Output Power,
AMP-8075 |
75 Watts per channel @ 4-8 Ohms or 70 Volts nominal;
150 Watts per bridged pair of channels @ 8 Ohms |
Output Power,
AMPI-8075 |
75 Watts per channel @ 4-8 Ohms or 100 Volts nominal;
150 Watts per bridged pair of channels @ 8 Ohms |
| Frequency Response |
20 Hz to 20 kHz ±0.5 dB at 1 Watt, 4-8 Ohms;
200 Hz to 20 kHz ±0.5 dB at 1 Watt, 70/100 Volts |
| High Pass Filter |
-3 dB @ 80 Hz, 12 dB per octave in 70V or 100V mode |
| THD+N |
<0.1% @ 1 kHz at 3 dB below clipping |
| S/N Ratio |
>103 dBA, 20 Hz to 20 kHz |
| Channel Separation |
>70 dB |
| Input Sensitivity |
1.23 Vrms, +4 dBu (balanced) for full rated output power |
| Fault Protection |
Over Current: Protects each channel individually against an excessive speaker load or shorted speaker line;
DC Offset: Protects each channel and speaker line against DC voltages sensed at each output;
Over Temperature: Protects the amplifier power supply and each channel against overheating due to poor ventilation or excessive temperature;
Under Voltage: Protects the amplifier if the internal power supply voltage is below tolerance due to excessive output levels or insufficient line voltage;
Note: All faults report to the control system, and indicate on the front panel and in the software tool. |
| Output Relays |
Disconnects the speaker line at each output under fault conditions, and during startup and shutdown |
| Audio Ramp |
Ramps each channel’s audio level up to its last used setting after the corresponding output relay has closed following startup or fault recovery; ramp time ˜2 seconds |
| Connectors |
| LINE INPUTS 1 – 8 |
(8) 3-pin 3.5 mm detachable terminal blocks;
Balanced line-level audio inputs;
Maximum Input Level: 12.3 Vrms, +24 dBu;
Input Impedance: 20k Ohms balanced |
| SPEAKER OUTPUTS 1 – 8 |
(8) 2-pin 7.62 mm reversed gender 20A detachable terminal blocks;
Power amplifier outputs;
Wire Size: Terminals accept up to 12 AWG (3.31 mm²);
Note: Output is direct-coupled in all modes for all load types, not transformer isolated |
| LAN |
(1) 8-pin RJ45 female;
10Base-T/100Base-TX Ethernet LAN port |
| 100-120V~ 50/60Hz 3A (AMP-8075) |
(1) IEC 60320 C14 main power inlet;
Mates with removable power cord (included) |
| 220-240V~ 50/60Hz 2A (AMPI-8075) |
(1) IEC 60320 C14 main power inlet;
Mates with removable power cord (included) |
FUSE: T10AH250V
(AMP-8075) |
Main fuse;
1/4” x 1-1/4”, 10A, time-lag, 250V, ceramic |
FUSE: T6AH250V
(AMPI-8075) |
Main fuse;
5 x 20 mm, 6.3A, time-lag, 250V, ceramic |
| G |
(1) 6-32 screw;
Chassis ground lug |
| COMPUTER (front) |
(1) USB Type B female;
USB computer console port (for setup only) |
| Controls & Indicators |
| PWR |
(1) Bi-color green/amber LED, indicates operating power supplied from AC line power, amber indicates startup in progress, green indicates normal operation, alternating green/amber indicates absence of a network connection |
| RESET |
(1) Recessed pushbutton, restores last saved settings |
| STATUS, FAULT 1 – 8 |
(8) Red LEDs, each indicates an under-voltage fault condition on the corresponding channel |
| STATUS, CURRENT 1 – 8 |
(8) Blue LEDs, each indicates an over-current fault condition on the corresponding output |
| STATUS, DC 1 – 8 |
(8) Blue LEDs, each indicates a DC offset fault condition on the corresponding channel |
| STATUS, THERM 1 – 8 |
(8) Blue LEDs, each indicates an over-temperature fault condition on the corresponding channel |
| STATUS, 70V 1 – 8 (AMP-8075 only) |
(8) Blue LEDs, each indicates the corresponding channel is configured for 70 Volt operation |
| STATUS, 100V 1 – 8 (AMPI-8075 only) |
(8) Blue LEDs, each indicates the corresponding channel is configured for 100 Volt operation |
| VU 1 – 8 |
(8) 5-segment LED bar graph audio level meters for each corresponding output; each contains (4) blue LEDs for -40dB, -30dB, -20dB, and -10dB, and (1) red LED for CLIP |
| LINE INPUTS 1 – 8 (rear) |
(8) Screwdriver-adjustable rotary controls, each adjusts the input attenuation level for the corresponding channel |
| LAN (rear) |
(2) LEDs, green LED indicates Ethernet link status, amber LED indicates Ethernet activity |
| SETUP (rear) |
(1) Red LED and (1) pushbutton for Ethernet setup, flashes while updating firmware |
| Power Switch (rear) |
(1) Rocker switch, turns main power on or off |
| Power |
Main Power
(AMP-8075) |
3 Amps @ 100-120 Volts AC, 50/60 Hz |
Main Power
(AMPI-8075) |
2 Amps @ 220-240 Volts AC, 50/60 Hz |
| Power Consumption |
173 Watts, all channels driven at 1/8th output power;
70 Watts, all channels idle |
| Environmental |
| Temperature |
41° to 104°F (5° to 40°C) |
| Humidity |
10% to 90% RH (non-condensing) |
| Heat Dissipation |
350 BTU/hr, all channels driven at 1/8th output power;
250 BTU/hr, all channels idle |
| Construction |
| Chassis |
Metal, variable-speed fan-cooled, vented sides |
| Front Panel |
Metal, black finish with polycarbonate label overlay |
| Mounting |
Freestanding or 1 RU 19-inch rack-mountable (front rack ears and rear support brackets included) |
| Dimensions |
| Height |
1.72 in (44 cm) |
| Width |
17.28 in (439 mm);
19.00 in (483 mm) with rack ears |
| Depth |
14.69 in (374 mm) |
| Weight |
| 12.6 lb (5.72 kg) |
| Compliance |
| UL 60065, FCC Class A commercial use |