The RA53b is a high powered headphone amplifier with five 1/4″ and 1/8″ (3.5mm) headphone outputs. 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
– 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)
– # 5: 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.