User manual ROLLS RM82

[. . . ] This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. ROLLS CORPORATION SALT LAKE CITY, UTAH 6/04 RM82 MIC LINE MIXER Eight Channel Audio Mixer 1 2 3 4 5 +20 +20 +20 +20 +20 TRIM LEVEL TONE TRIM LEVEL TONE TRIM LEVEL TONE TRIM LEVEL TONE TRIM LEVEL TONE 6 7 8 MASTER MIC/LINE MIXER +20 +20 +20 0 TRIM LEVEL TONE TRIM LEVEL TONE TRIM LEVEL TONE LEVEL 10 pwr RM82 OWNERS MANUAL INTRODUCTION Thank your for your purchase of the Rolls RM82 Mic Line eight channel audio mixer. It is intended for sound reinforcement or studio applications where several microphones or line sources need to be combined to a single output. Please review this manual for proper operation. SPECIFICATIONS Input Impedance: Max Input Level: TABLE OF CONTENTS 1. INTRODUCTION TABLE OF CONTENTS FEATURES INSPECTION DESCRIPTION Front Panel Rear Panel CONNECTION 1. [. . . ] pwr: LED indicating power is applied to the RM82. Power Switch: Applies power to the unit. Please ensure the power cable is connected to a properly grounded AC outlet. REAR PANEL SERIAL NUMBER 82PREFADE OUT CHANNEL 8 CHANNEL 7 CHANNEL 6 CHANNEL 5 CHANNEL 4 CHANNEL 3 CHANNEL 2 CHANNEL 1 MODEL RM82 PHANTOM POWER 120 VAC 50/60 Hz 15 VA MADE IN U. S. A. on MAIN OUT AUX BUSS IN 87654321 WARNING: DO NOT EXPOSE THIS OR MOISTURE EQUIPMENT TO RAIN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE BACK PANEL NO USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL RISQUE DE CHOC - NE PAS ENLEVER MAIN OUTPUT: XLR balanced jack containing the RM82 main output signal. PRE-FADE OUTPUT: RCA jack for connection to another RM81 Aux/Bus Input or to another device such as a recorder. AUX INPUT: RCA jack which connects directly to the RM81 mix bus. The jack may be connected to another RM81 Pre-Fade Output - making this unit the "Master". PHANTOM POWER SWITCHES: 8 individual DIP switches for applying 48 Volts of phantom power to the indicated channel's XLR Input. The phantom power is for powering condenser microphones. The Phantom Power switches are in the OFF position when the RM82 is shipped from the factory. CHANNEL INPUTS 1 - 8: 1/4" TS unbalanced, and XLR balanced input jacks. The eight 1/4" jacks come from the factory configured as line inputs and are electrically mixed with the XLR jacks. These inputs may be reconfigured as either Direct Outputs, or Inserts. See page 4 for details. 5 A NOTE ABOUT ROLLS MICROPHONE PREAMPLIFIER CIRCUITS The Rolls servo-balanced Microphone Preamps feature many advantages over other mic preamps. Among these are simplicity of design, 40db or higher CMRR (common mode rejection ratio) than transistor input mic preamps. This means much lower noise on long input lines, and very low distortion at high gain. Discrete transistor preamps are non-linear at high gains, but not our design. We feature a higher signal swing, which means our preamps have more headroom before clipping. 2 CONNECTION 1. MICROPHONE AND MAIN OUTPUT CONNECTION Connect microphones to the XLR Inputs as shown here. [. . . ] CHANNEL DIRECT OUTPUT For each channel you wish to have Direct Output access, you must first configure that channel's 1/4" Input as a Direct Output. Follow the instructions shown on page 4. Connect a 1/4" unbalanced TipSleeve cable to the channel's 1/4" jack and to the next device you want the signal sent to. Note, the channel's signal will still be present at the RM82 Main Output. SERIAL NUMBER 82PREFADE OUT CHANNEL 8 CHANNEL 7 MODEL RM82 PHANTOM POWER CONFIGURING THE OUTPUT FOR MIC OR LINE LEVEL The RM82 ships from the factory with the XLR Main Output configured as Line Level (+4 dB). [. . . ]