User manual RANE MLM 82A

[. . . ] See the full explanation of the power supply requirements on page Manual-3. MLM 82a CONNECTION When connecting the MLM 82a to other components in your system for the first time, leave the power supply for last. This gives you a chance to make mistakes and correct them without damage to your fragile speakers, ears and nerves. MIC/LINE INPUTS 1-4 The four XLR jacks provided on the MLM 82a are balanced MIC/LINE inputs. For best noise rejection use two-conductor-plus-shielded wire, even for unbalanced operation. [. . . ] 4 STEREO LINE INPUT LEVEL controls 5-8 determine the amount of stereo or mono line Input routed to the Outputs. 5 MONO switch mixes the A and B sides of each STEREO LINE input together. When active, the associated LED lights, and the A and B Inputs for that channel have exactly the same level. 6 OUTPUT OverLoad LED illuminates within 3 dB of an approaching overload condition. To avoid this, the associated OUTPUT LEVEL control may be decreased, or the problem-causing individual Input Level may be lowered. 7 A and B OUTPUT LEVEL controls set the Output Level for A and B outputs. 8 POWER LED is lit whenever adequate power is applied to the unit. Manual- REAR PANEL DESCRIPTION 7 5 OUTPUTS POWER 4 LINE INPUTS B 1 MIC/LINE INPUTS 8 A B 7 A B 6 A B 5 A MADE IN U. S. A. RANE CORP. MLM 82a 4 3 2 1 BALANCED: PIN 3 = (­) PIN 2 = (+) PIN 1 = (G) 600mA CLASS 2 EQUIPMENT B ACN 001 345 482 A LINE LINE LINE LINE BALANCED OR UNBALANCED PHANTOM POWER 6 3 2 1 MIC/LINE INPUTS 1 through 4. These XLRs connect either balanced Microphone or Line signals, depending on the LINE switch setting (see 3). standard for balanced pin configurations: Pin 1 is chassis ground (neutral), pin 2 is positive (+), and pin 3 is negative (­). 2 PHANTOM POWER switch applies 15 V Phantom Power to any Inputs 1-4 that are set for MIC Input. 3 LINE Input selectors switch the sensitivity and input impedance for either a microphone or line level input. These stereo pairs of balanced inputs accommodate stereo line-level signals. These TRS (Tip-Ring-Sleeve) ¼" jacks handle either balanced or unbalanced signals. In most cases an unbalanced signal may use a mono ¼" plug (Tip-Sleeve). See the Sound System Interconnection RaneNote included with this manual for proper connection. INTERNAL OUTPUT LEVEL switches allow setting the output level for MIC or LINE level. The MLM 82a is supplied from the factory with an RS 1 remote power supply suitable for connection to this input jack. The power requirements call for an 18 volt AC center-tapped transformer only. See the note below for details. CHASSIS GROUNDING The MLM 82a is supplied with an external power supply (the RS 1). On the rear chassis a #6-32 screw is provided to allow for attachment of the grounding wire. This chassis ground point must be connected to earth ground either through another product which utilizes a three-prong grounded AC power cord or by attaching the wire to a known earth ground, (the screw on a grounded AC outlet. ) If after hooking up your system it exhibits excessive hum or buzzing, there is an incompatibility in the grounding configuration between units somewhere. [. . . ] If the OL indicators illuminate, just turn down the OUTPUT LEVELS until the overload stops--mix ratios will not change. STEREO LINE LEVEL INPUTS 5-8 The STEREO LINE INPUT LEVEL controls adjust both A and B Inputs equally. Use the OUTPUT LEVEL controls together for overall output adjustment, or separately to control balance. If you wish one or two mono sources to go to both A and B outputs, press the MONO switch. [. . . ]