Rolls RA53B 5-Channel Stereo Headphone Amplifier with 90dB Signal to Noise Ratio, 1/2 Space Rackmount

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About the Rolls RA53B

The Rolls RA53B is a 5-channel, 1/2 space, rackmountable stereo headphone amplifier featuring 1/4" TRS and 1/8" stereo mini simultaneous outputs for each channel. Two units may be linked for 10-channel, 6-insert operation and a total of 3 channel inserts enable direct access to channels 1,2 and 3, potentially feeding 3 independent stereo mixes to those channels. The RA53B is a ruggedly built and equally viable as a multi-client stage or studio headphone monitoring solution.

Rolls RA53B Includes

  • Rolls RA53B Headphone Amplifier
  • 12V DC Power Supply
  • Owner's Manual
  • Rolls 1 Year Parts & Labor Limited Warranty

Rolls RA53B Features

  • 5-channel, 1/2-space rackmount headphone amplifier
  • 1/4 inch and 1/8 inch stereo headphone outputs for each channel can be used simultaneously for total of 10 outputs
  • 3 Channel Insert points allow direct access to channels 1, 2 and 3 for independent stereo mix feeds to those channels
  • Join I/O allows linking of two units for 10-channel operation with six inserts from master stereo signal
  • Versatile stereo input connector complement includes XLR, 1/4 inch Mono and Stereo and RCA

Rolls RA53B Specifications

Form Factor 1/2 Space Rackmount
Input Impedance 10 KOhms
Maximum Input Level +18dBV
Maximum Gain 26dB per channel
Maximum Output Power 200 mW per side, 400 mW per channel (@ 16 Ohms)
Output Impedance 10 Ohms
Signal Noise Ratio >90dB
THD <.08%
IMD (SMPTE) <.08%
Power 12V AC
Dimensions (W x H x D) 8.4 x 1.7 x 5 inch / 21.3 x 4.3 x 13 cm
Weight 2.5 lbs / 1.14 kg
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