Rolls RA53B Headphone Amplifier |
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Description The RA53b is a high powered headphone amplifier with five 1/4” and 1/8” (3.5mm) headphone and earphone outs. Two RA53b units may be linked together and mounted side-by-side in a universal rack tray for a total of 10 outputs. Specifications Input Impedance: 10 K Ohms Maximum Input Level: +18 dBV Max Gain: 26 dB per channel Maximum Output Power: 200 mW per side, 400 mW per channel (@ 16 Ohms) Output Impedance: 10 Ohms S/N Ratio: >90 dB THD: <.08% IMD (SMPTE): <.08% Power: 12 VAC (Adapter provided) Size: 8.4 x 1.7 x 5" (21.3 x 4.3 x 13 cm) Weight: 2.5 LBS (1.14 kg) |
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