Rolls RA53b user manual

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SCHEMATIC
RA53b
Stereo Headphone Amplifi er
www.rolls.com
PS12
12V AC
SPECIFICATIONS
Input Impedance: 10 K ohms
Max 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: ROLLS PS12 - 12V AC
(Adapter Provided)
Size: 8.4” x 1.7” x 5”
(21.3 x 4.3 x 13 cm)
Weight

Summary of the content on the page No. 2

INTRODUCTION DESCRIPTION Thank you for your purchase of the Rolls RA53b Stereo Headphone Amplifi er. This unit was designed to provide years of dependable service. Please read this manual carefully to FRONT PANEL ensure proper operation. The RA53b is a fi ve-channel headphone/earphone amplifi er with a variety of input options. In addition to the four master mix inputs, four separate mixes may be monitored using the main inputs and the three Insert jacks on Channels 1, 2, and 3. A 1/4” JOIN