Rolls RA53b user manual

Summary of the content on the page No. 1

LIMITED WARRANTY
This product is warranted to the original consumer purchaser to be free from
defects in materials and workmanship under normal installation, use and service for a
period of one (1) year from the date of purchase as shown on the purchaser’s receipt.
The obligation of Rolls Corporation under this warranty shall be limited to repair
or replacement (at our option), during the warranty period of any part which proves
RA53b
defective in material or workmanship under normal installatio

Summary of the content on the page No. 2

INTRODUCTION SPECIFICATIONS Thank you for your purchase of the Rolls RA53b Stereo Headphone Amplifier. Input Impedance: 10 K ohms This unit was designed to provide years of dependable service. Please read this Max Input Level: +18 dBV manual carefully to ensure proper operation. Max Gain: 26 dB per channel The RA53b is a five-channel headphone/earphone amplifier with a variety of input Maximum Output Power: 300 mW per channel options. In addition to the four master mix inputs, four separate mixe

Summary of the content on the page No. 3

SCHEMATIC DESCRIPTION FRONT PANEL Note: Descriptions for Channel One through Channel Five are identical. OUTPUT: 1/4” and 1/8” (3.5mm) Tip-Ring-Sleeve jacks for connection to a standard pair of headphones or earphones. Output impedance is 10 Ohms. LEVEL: Controls the amount of output signal from the indicated channel. POWER LED: Indicates that the RA53b is connected to the power supply and is on. REAR PANEL POWER: For connection to a Rolls 12 Volt (maximum) power supply. RIGHT/MONO INPUT: 1/4”

Summary of the content on the page No. 4

CONNECTION OPERATION Connect the Rolls Power Supply to the POWER jack on the RA53b rear panel. Shown below is a possible connection/operation example for the RA53b. Head- Connect the power supply to an ac outlet. phones are connected to the Outputs on the front panel, and the other equipment is connected to the rear panel Inputs as shown. The Left and Right Inputs to the Determine which input configuration you will use; either discreet right/left, TRS RA53b are connected to the mixer’s sub outpu