ALESIS RA500 Reference Amplifier

DC coupled, fully complementary discrete amplifier topology Actively biased, dual differential input stages Wide bandwidth, low distortion design Fully protected from all fault conditions LED output level metering Front panel level controls Overload / Fault indicators Bridged mono operation Balanced 1/4" and RCA (Cinch) single-ended input connectors XLR input connectors Heavy-duty, dual binding post output connectors Relay-controlled turn on/off Silent, convection-cooled design Heavy-duty steel chassis

Specifications: Rated output (per channel) 4 ohms @ 1kHz - 0.02% THD+N 250 watts RMS per channel 8 ohms @ 1kHz - 0.05% THD+N 150 watts RMS per chamel 8 ohms, bridged mono mode 500 watts RMS Signal-to-Noise Ratio: 105dB - 22Hz-22kHz bandwidth (referenced to rated output) Frequency Response: 10Hz — 7OkI-Iz +0, —3dB Damping Factor: 200 R t 60 V/us (two channel), 120 V/us (bridged mono) Slew Rate: 60V/us (two channel), 120V/us (bridged mono) Input Sensitivity: +4dBu (1.23 V) for rated output (with input control at maximum) Maximum input level: +26 dBu Input impedance: 20k ohms, balanced, 10 k ohms unbalanced _ Crosstalk: -85dB @ 1kHz

All measurements done over a 20Hz-22,000Hz range with 1kHz sine wave at full scale, except for the dynamic range which was done with a -60dBFS 1kHz sine wave.

Size 18.9" W x 5.63" H x 10.71" D (480mm x 143 mm x 272 mm) Rack Units: 3RU height Weight: 28.5lbs = 13.0Kg