User manual ROLLS RA53B

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 defective in material or workmanship under normal installation, use and service, provided the product is returned to Rolls Corporation, TRANSPORTATION CHARGES PREPAID. Products returned to us or to an authorized Service Center must be accompanied by a copy of the purchase receipt. In the absence of such purchase receipt, the warranty period shall be one (1) year from the date of manufacture. This warranty shall be invalid if the product is damaged as a result of defacement, misuse, abuse, neglect, accident, destruction or alteration of the serial number, improper electrical voltages or currents, repair, alteration or maintenance by any person or party other than our own service facility or an authorized Service Center, or any use violative of instructions furnished by us. This one-year warranty is in lieu of all expressed warranties, obligations or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR LIABILITIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL BE LIMITED IN DURATION TO THE ONE YEAR DURATION OF THIS WRITTEN LIMITED WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, WHATSOEVER. Some states do not allow the exclusion or limitation of special, incidental or consequential damages so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. RA53b Stereo Headphone Amplifier ROLLS CORPORATION SALT LAKE CITY, UTAH 2/03 OWNERS MANUAL INTRODUCTION Thank you for your purchase of the Rolls RA53b Stereo Headphone Amplifier. This unit was designed to provide years of dependable service. Please read this manual carefully to ensure proper operation. The RA53b is a five-channel headphone/earphone amplifier 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 Input/Output jack is provided for connecting two RA53b units together, providing up to ten channels of headphone monitoring. Finally - the RA53b is loud. It has plenty of gain for operation in noisy environments, and works with most any headphone impedance. INSPECTION 1. Unpack and inspect the RA53b box and package. If obvious physical damage is noticed, contact the carrier immediately to make a damage claim. We suggest saving the shipping carton and packing materials for safely transporting the unit in the future. 2. Please complete our online Warranty Registration by visiting our website; www.rolls.com. Click on the REGISTER YOUR WARRANTY HERE line. Or, complete the Warranty Registration Card and return it to the factory. TABLE OF CONTENTS Introduction Inspection Table of Contents Description Front Panel Rear Panel Connection Operation Schematic Specifications Warranty SPECIFICATIONS Input Impedance: Max Input Level: Max Gain: Maximum Output Power: Output Impedance: S/N Ratio: THD: IMD (SMPTE): Power: Size: Weight: 10 K ohms +18 dBV 26 dB per channel 300 mW per channel 10 Ohms >90 dB <.08% <.08% 12 VAC\DC (Adapter Provided) 8.4" x 1.7" x 5" (21.3 x 4.3 x 13 cm) 2.5 lbs (1.14 kg) 1 1 1 2 2 3 4 5 6 Back Cover 1 6 SCHEMATIC FRONT PANEL DESCRIPTION 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" TS jack for connecting the "Right" side of a stereo signal. If used alone (nothing connected to the LEFT/STEREO jack), a 1/4" TS plug with a mono signal will feed both sides of the RA53b Outputs. LEFT/STEREO INPUT: 1/4" TRS jack for connecting to the "Left" side of a stereo signal. If used alone,(nothing connected to the RIGHT/MONO jack) a 1/4" TRS plug with the "Right" side of the program material on the tip, and the "Left" side on the ring may be connected for stereo operation. For example, a stereo headphone output from a mixing console may be directly connected to the Left/Stereo jack via a stereo TRS cable. L /R INPUTS: RCA input jacks for connection to a signal source such as a CD or cassette player. BALANCED INPUTS: XLR input jacks for connection to a balanced line level source such as the output of a mixer. JOIN: 1/4" TRS jack for connection to another RA53b JOIN jack. Linking two units together provides 10 channels of monitoring from a master stereo signal, with six channels having an insert option. CHANNEL INSERTs: 1/4" TRS jacks for receiving a stereo signal and directly accessing the indicated channel's circuitry. 5 2 CONNECTION Connect the Rolls Power Supply to the POWER jack on the RA53b rear panel. Connect the power supply to an ac outlet. Determine which input configuration you will use; either discreet right/left, TRS stereo, or mono. For a discreet right/left input configuration, connect a 1/4" TS plug containing the "Right" portion of the stereo signal to the Right/Mono Input. Connect a 1/4" TS plug containing the "Left" portion of the stereo signal to the Left/Stereo Input. If connecting a balanced signal, use the XLR inputs instead of the 1/4" inputs and connect as indicated above. For a TRS stereo input configuration, connect a Tip-Ring-Sleeve stereo plug into the Left/Stereo input. This cable may come from a mixer's headphone output for example. Make sure nothing is connected to the Right/Mono Input. To send a mono signal to the RA53b, connect a 1/4" Tip-Sleeve plug into the Right/Mono Input. This mono signal will be fed to both the right and left sides of the headphone outputs. Make sure nothing is connected to the Left/Stereo Input. MADE IN USA OPERATION Shown below is a possible connection/operation example for the RA53b. Headphones 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 RA53b are connected to the mixer's sub outputs, but could be connected to auxiliary sends or even main outputs. The RCA Inputs are connected to a playback deck. For individual monitoring, a stereo TRS connector could be plugged into a stereo auxiliary send from the mixer to an Insert jack on the RA53b. This way, different material may be monitored on Channels 1, 2, and/or 3 than that of the main inputs. A 1/4" Tip-Ring-Sleeve cable connects on RA53b JOIN jack to another RA53b JOIN jack for ten channels of headphone/earphone monitoring. For connection to another RA53b The RCA Aux Inputs are connected in the same manner as the discreet right/left input configuration listed above. To link another RA53b, simply connect a 1/4" TRS stereo cable to both JOIN jacks on two RA53b units. INSERTS The Channel 1, 2 and 3 inserts have been provided so you can directly access Channel 1, Channel 2 and Channel 3 headphone and earphone outputs with their own program material. The inserts require Tip-Ring-Sleeve connectors, with right and left signals on the tip and ring respectively. When these insert jacks are used, the main Right/Stereo and Left/Mono, as well as the RCA and XLR Inputs - are disconnected to that channel. Only the stereo signals sent to the Insert jacks go to the corresponding outputs. 12 VAC/ RIGHT/ LEFT/ DC MAX MONO STEREO L MODEL RA53b R RIGHT INPUTS LEFT JOIN 3 2 INSERTS 1 Right and Left Sub Outs 3 4