| Audio |
| Input Signal Types |
Balanced or unbalanced analog line-level |
| Output Power Per Channel (RMS, continuous up to 10 seconds) |
250 W (4 or 8 Ω), 500 W (8 Ω only), 500 W (70V/100V)
NOTE: Total simultaneous output power across all channels will not exceed 1000 W |
| Frequency Response |
20 Hz to 20 kHz ±0.5 dB at 1 W |
High-Pass Filter
(70V and 100V operation only) |
-3 dB @ 80 Hz, -12 dB/octave |
| THD+N |
<0.1% at 1 kHz @ -3 dB full rated output power |
| S/N Ratio |
>103 dBA, 20 Hz to 20 kHz, balanced |
| Crosstalk |
-75 dB at 1 kHz |
| Input Sensitivity |
1.23 Vrms, +4 dBu balanced;
0.316 Vrms, -10 dBV unbalanced |
| Gain |
29 dB @ 8 Ohms |
| Protection |
Overcurrent, under voltage, over temperature, DC offset, extreme high frequency |
| Go to Sleep Time |
25 minutes with no signal present (when set to POWER SAVER) |
| Wake Time |
0.5 s typical |
| Wake Threshold |
0.44 mV typical |
| Connectors |
| CH1-CH4 (OUTPUT) |
(4) 2‑pin 5.08 mm pitch, 12A plug with screw locking retainers;
Power amplifier output;
Wire Size: Terminals accept up to 12 AWG (3.31 mm)
NOTE: Output is direct‑coupled, not transformer isolated. |
| AUDIO IN (UNBALANCED) |
(4) RCA connectors, female;
Unbalanced line‑level audio inputs ;
Maximum Input Level: 2.24 Vrms, +7 dBV (+9.2 dBu) |
| AUDIO IN (BALANCED) |
(4) 3-pin 3.5 mm detachable terminal block;
Balanced line‑level audio inputs;
Maximum Input Level: 7.75 Vrms, +20 dBu;
Input Impedance: 20 kΩ |
| BUS INPUT |
(2) paired RCA connectors, female;
Unbalanced line-level audio inputs |
| BUS OUTPUT |
(2) paired RCA connectors, female;
Unbalanced line-level audio outputs, buffered |
| REMOTE |
(1) 2-pin 3.5 mm detachable terminal block;
Connect to dry contact closure to place amplifier in standby mode |
| Chassis Ground |
(1) 6‑32 screw;
Chassis ground lug |
100‑240V~ 1.2-0.6A
50/60 Hz |
(1) IEC 60320 C14 main power inlet;
Mates with removable power cord, included |
| Controls & Indicators |
| PWR |
(1) White/Red LED;
White indicates amplifier is on and ready for use;
Red indicates amplifier is in standby |
| HI-Z |
(4) White LEDs;
Indicates when Hi-Z mode is enabled (70V or 100V); |
| SIGNAL |
(4) White LEDs (one per output);
Indicates when an active input signal is present |
| FAULT |
(4) Red LEDs (one per output);
Indicates that the input channel is faulted or clipping |
| GAIN 1-4 |
(4) Screwdriver‑adjustable rotary controls, one per output channel;
Adjusts the attenuation level for the corresponding output channel |
| INPUT SEL 1-4 |
(4) Rotary controls, one per output channel;
Selects input source from RCA, Balanced, BUS left/right, or BUS mono. |
| OUTPUT 1-4 |
(4) Rotary controls, one per output channel;
Selects 4-8 Ω 250 W, 8 Ω 500W, 70V, or 100V operation. |
| Power Mode |
(1) Slide switch;
Selects Power Saver or Always On operation |
| Power |
| Main Power |
1.2-0.6A @ 100‑240VAC, 50/60 Hz |
| Power Consumption |
227 W, (4 channels driven at 1/8th output power, 4 Ω);
11.5 W, idle;
0.37 W, power saver (115VAC/60 Hz) |
| Environmental |
| Temperature |
41 to 104°F (5° to 40°C) |
| Humidity |
10% to 90% RH (non‑condensing) |
| Heat Dissipation |
268 BTU/hr @ 4 Ω, all channels driven at 1/8th output power;
39 BTU/hr all channels idle;
1.3 BTU/hr in standby |
| Construction |
| Chassis |
Metal, convection cooled (fanless) |
| Front Panel |
Metal, black finish with polycarbonate label overlay |
| Mounting |
Freestanding or 1 RU 19 in. rack mountable;
Stackable with other Crestron AMP series products (adhesive feet and rack mounting hardware all included) |
| Dimensions |
| Height |
1.75 in (44 mm) without feet;
1.89 in (48 mm) with feet |
| Width |
19.00 in (483 mm) |
| Depth |
14.57 in (370 mm) |
| Weight |
| 10.7 lb (4.8 kg) |
| Compliance |
| ENERGY STAR, ErP (1275/2008/EC), UL® 62368, FCC Class B residential use |
