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RA150/300/500 Reference Manual 31
Reference 500
Size 18.9" W x 5.63" H x 10.71" D
(480mm x 143 mm x 272 mm)
Rack units 3 RU height
Weight 28.5lbs = 13.0Kg
Rated output, per channel
4 ohms @ 1kHz, .02% THD+N 250 watts RMS per channel
8 ohms @ 1kHz, .05% THD+N 150 watts RMS per channel
8 ohms, bridged mono mode 500 watts RMS
Signal to Noise Ratio 105dB, 22Hz-22kHz bandwidth referenced to rated output
Frequency Response 10Hz – 70kHz +0, -3dB
Damping Factor 200
Slew Rate 60 V/µs (two channel), 120 V/µs (bridged mono)
Input Sensitivity +4dBu (1.23 V) for rated output with input control at maximum
Maximum input level +26 dBu
Input impedance 20k Ω, balanced, 10 kΩ 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.
Dimensioned drawings
RA150