RA53B – Overview
The Rolls 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.
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Features:
- 1/4″ TRS Headphone Outputs with Level Control.
- Lots of Gain.
- 1/4″ and RCA Right and Left Inputs.
- Inserts on Two Channels.
- 1/4″ TRS Stereo Input, 1/4″ Mono Input.
- Link input/output for connecting two units together
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Specifications:
- Maximum Input Level: +18 dBV
- Max Gain: 26 dB per channel
- Output Power: 221 mW per side, 442 mW per channel (@ 32 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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GTIN:
0675889005318







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