User manual ROLLS MA2152

[. . . ] This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Mixer / Amplifier MA2152 ROLLS CORPORATION SALT LAKE CITY, UTAH 1/04 OWNERS MANUAL INTRODUCTION Thank your for your purchase of the Rolls MA2152 Mixer / Amplifier. The MA2152 is a two rack space mixer amplifier designed for restaurants, schools, churches, clubs etc. The unit provides a compact and efficient way to mix up to three sources such as AM/FM tuners, CD players, and video players with up to two microphones. Priority talkover is provided on Microphone Two for paging, and on Source One for a jukebox, telephone, etc. [. . . ] Treble: Adjusts the high frequencies of the Source 1 and 2 signals only. Left / Right Output: Adjusts that channel's output level Clip. LED indicating clipping in the MA2152 amplifier. Power: LED indicating power is applied to the MA2152 and the unit is on. REAR PANEL Power Bandwidth: Damping Factor: Slew Rate: Phase Shift: Power: Size: Weight: SCHEMATIC POWER AMP SECTION FUSE: 4 Amp fuse. 4 - 8 Ohm / 25 Volt Output: The two red banana jacks are used when the MA2152 is in Bridge/Mono, or 70V mode. RECORD OUT: Stereo RCA jacks, contains all mixed signals before the Master Level controls. SOURCE INPUTS: Stereo RCA jacks, Channels 1 - 3, for connection to stereo sources such as AM/FM tuners, cassette players, cd players, or video players. LEFT/RIGHT AMP INSERT: 1/4" Tip-Send, Ring-Return insert jack. DIP SWITCH: Contains the small switches for engaging Mic 1, 2 phantom power, Source 3 Stereo or Mono, the priority (Talk Over) functions, and the Mono/Stereo select. MICROPHONE ONE and TWO: Balanced XLR inputs to be connected to dynamic or condenser microphones. BRIDGE SWITCH: This switch selects the output configuration; Bridge Mono, or Stereo / Dual Mono. 5 2 CONNECTION Inputs Connect low impedance microphones to the Mic inputs. If a paging microphone is being used, connect it to Mic Input 1 so it may be used with the Talk Over function. Connect source signals such as CD players, cassette players or video players to the RCA Source Inputs. If a jukebox is being connected, and you want its signal to mute the other source signals, connect it to Source input 1. For recording purposes, connect a stereo RCA cable to the Record Out jacks, and to your recording device. Amp Inserts To connect a signal processor to the MA2152 signal(s), use an insert plug, or cable wired as shown in Fig. This return signal is then sent to the output level section of the amplifier. Outputs In STEREO MODE, the Right speaker is connected to the red and black banana RIGHT OUTPU connectors. The Left speaker is connected to the red and black banana LEFT OUTPUT connectors. [. . . ] This applies 12 volts dc phantom power to the indicated microphone. · SOURCE 1 MONO; this switch sums the Right and Left inputs of Source 1 to mixed dual-mono inputs. · Mic 1 Priority; when in the up position, all program material on Mic 2 and Sources 2 and 3 will be "ducked" or muted when a signal is present at Mic 1. · Source 3 Priority: when in the up position, Source 1, and 2 will be "ducked" or muted by the signals at Source 1. [. . . ]