User manual ROLLS MX54

3-Channel Stereo Mic Mixer ProMix Plus MADE IN USA 10 CHANNEL LEVEL PAN L R 2 SPECIFICATIONS Input Impedance: Output Impedance: THD + Noise: S/N Ratio: Frequency Response: Max Output Level: Max Input Level: Max Gain: Low Cut: Current Draw: Phantom Power: Connectors: 10 0 0 CHANNEL LEVEL PAN L R 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 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. MX54 ProMix Plus · Mixes three microphones to stereo XLR outputs · Output level controls for mic or line-level output · Transformer isolated outputs · Phantom Power and Low-Cut switches for each Mic input · Battery and AC powered The MX54s is a very useful microphone mixer. It's perfect for sub-mixing microphones in an installation or recording application. The Phantom Power and Low-Cut switches add to the versitility and usefullness of the MX54. Rolls Corporation Salt Lake City, UT 10/00 Size: Weight: 600 Ohms XLR 600 Ohms .02% 84 dB 25 Hz - 16 kHz (+0 / -3 dB) + 14 dB -14 dB +60 dB -3 dB @ 100 Hz 20 mA +18 VDC 3 Female XLR, 2 Male XLR, 1 1/4" TRS, DC Power Jack 5.3" x 3.7" x 2" 1 lbs. 10 PHONES AUX 0 CHANNEL LEVEL PAN L R 3 Owners Manual MX54s MADE IN USA pwr clip POWER OFF - ON MX54s + - BATTERIES 9V x 2 INTRODUCTION Thank you for your purchase of the MX54s ProMix Plus. This unit is designed and manufactured to mix three microphones together and send their combined signals out stereo transformer-balanced XLR outputs. The individually switchable phantom power and low-cut switches provide he final touches which make the MX54s a valuable tool for any sound reinforcement, musical, recording, or install application. Located on the right side of the unit is the +12 VDC power jack for connection to an optional +12 VDC (outside of the ring is positive) external power supply. We recommend the Rolls PS27. Locatd on the left side of the unit is the battery 123 compartment which houses two 9-Volt (alkaline PHNT PWR ON=DOWN preferred) batteries. LOW CUT ON=UP Also on the left side are the Phantom Power and Low-Cut switches. PLPLPL As shown here, under each number is a P indicating Phantom Power, and an L which indicates Low-Cut. When the P switch is DOWN, the phantom power is ON, when it is UP, the phantom power is OFF.When the L switch is UP, the low-cut is ON, when it is DOWN, the low-cut is OFF. SCHEMATIC PC J7 OUT J5 XLR M XLR M PC OUT IN 9 -1 5 V D C INSPECTION 1. Unpack and Inspect the MX54s package Your MX54s was carefully packed at the factory in a protective carton. Nonetheless, be sure to examine the unit and the carton for any signs of damage that may have occurred during shipping. 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. J4 L IN E /H D P H O N E P H O N E 1 /4 T2 X F M R A U D IO E1 W IR E 2. Please complete the Warranty Registration Card and return it to the factory. J6 3 3 2 3 E31 W IR E E2 1 W IR E TP2 TP10K V T1 X F M R A U D IO JA P D C 1 BT1 BAT 9V TP1 TP10K V SW 2 C19 47U O u tp u t L e v e l T r im SPST O u tp u t L e v e l T r im C17 1K UF BT2 BAT 9V ROLLS CORPORATION 5968 South 350 West Salt Lake City,UT 84107 3 7 R19 2 10 C21 25PF C18 47U R40 1K 4556 +V 1N 4001 D1 +V 1 0 0 K 1 U3B 6 1N 4148 5 C16 25PF R23 100K 1K +VB CR5 4556 CR4 R41 R24 2K C L IP D3 LDRG 1N 4148 Q1 2N 3904 R29 18K U3A 2 3 +VB +V R22 R25 33K R26 10K +VB 2 R37 10K R33 R32 R38 10K R34 P6 P100K R36 10K P5 P100K 10K 10K P4 P100K 10K DESCRIPTION REAR PANEL Mic Input: 1 - 3: XLR balanced inputs for connection to any standard dynamic or condenser microphone. Right and Left Outputs: Transformer balanced XLR output jacks for connection to the next device in the signal chain such as a signal processor or amplifier. Right and Left Trim controls: Screwdriver adjustable controls to vary the level of each output. NOTE: These controls are set at mic level from the factory. Turning them counter-clockwise increases the output level. These controls do not effect the Aux/Headphone Output. R7 10K 3 +VB R39 10K R21 R28 +VB R35 10K 10K +VB R31 R14 10K 10K 4560 U1A 11 9 P2 P1 P100K P100K 7 P3 P100K R27 3 .3 K CR1 1N 4148 CR2 SW 1B D IP -6 SW 1D D IP -6 SW 1F D IP -6 CR3 C5 .1 C10 .1 1N 4148 C15 .1 SW 27 SW 41 SW 4560 R6 R13 4560 67 20K 1% R20 20K 1% U2B 4560 U2A C3 470PF +V C4 470PF C8 470PF 5 6 3 2 C13 470PF +V 5 C9 470PF 6 U1B C14 20K 1% +VB +VB R5 20K 1% R12 20K 1% +VB 332 1% 332 1% +V 12 +V 10 +V R3 R4 R 10 332 1% R 11 332 1% 8 R30 20K 1% SW 1A D IP -6 SW 1C D IP -6 1UF 35V N P SW SW 1UF 35V N P 1 C2 3 C7 SW SW 1E D IP -6 5 R 17 332 1% R 18 332 1% R2 4 .9 9 K 1 % 1UF 35V N P C1 R9 4 .9 9 K 1 % 1UF 35V N P C6 FRONT PANEL Mic Level 1 - 3: These controls adjust the level of the corresponding Mic channel. The level varies from -infinity (off) to +60 dB of gain (typical). PAN 1 - 3: Adjusts the relative right/left level of each channel. Phone/Aux: 1/4" TRS jack which may be connected to a pair of headphones for personal monitoring, or to an unbalanced input of a signal processor or amplifier. Power LED: Indicates the MX54s is on. Clip LED: Indicates that clipping is about to occur or occurring in the MX54s circuitry. This LED begins to light 3dB below actual circuit clipping. Power Switch: Applies power to the MX54s. 3 3 R16 4 .9 9 K 1 % C11 1UF 35V N P 3 C12 1UF 35V N P R1 4 .9 9 K 1 % XLR F PC R8 4 .9 9 K 1 % XLR F PC R15 4 .9 9 K 1 % J1 J2 CH3 CH 1 CH 2 J3 XLR F PC 470PF 1N 4148 +V D2 LDRG 1 1 2 8 1 4 2 1 2 8 +VB 22K C20 47U Title: MX54S PROMIX 3 CH MIXER Document Number: Rev: Size: A FXa MX54S.SCH Sheet 1 of 1 Date: 5-Oct-2000 4 1 1 8 1 2 4 1 2