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Ultra

Stereo Labs, Inc. • 181 Bonetti Drive

San Luis Obispo, CA  993401
Telephone 805.549.0161 • e-mail [email protected]

MMP-10

Multiplexer

INSTR

UCTION MANU

AL

Q u a l i t y   C i n e m a   P r o d u c t s

Summary of Contents for MMP-10

Page 1: ...Ultra Stereo Labs Inc 181 Bonetti Drive San Luis Obispo CA 993401 Telephone 805 549 0161 e mail usl uslinc com MMP 10 Multiplexer INSTRUCTION MANUAL Q u a l i t y C i n e m a P r o d u c t s ...

Page 2: ... factory freight paid or serviced by one of our authorized contractors The foregoing Warranty is exclusive and in lieu of all other warranties whether expressed or implied Such war ranty shall not apply to any product or component A repaired or altered by anyone other than Ultra Stereo Labs oranauthorizedservicecontractor B tampered with or altered in any way or subjected to misuse negligence or a...

Page 3: ...libration 6 Setup Procedure 7 Microphone Placement 8 Microphone Mounting 9 Low Battery Indicator 9 Remote Switch Circuits 10 Specifications 11 Please record the following information for your records Model ___________________ Serial Number ___________ Date of Purchase __________ Purchased from __________ ...

Page 4: ...s Microphone Multiplexer MMP 10B Low Battery Indicator Top View 1 Front View PUSH SWITCH CRAFT PUSH SWITCH CRAFT PUSH SWITCH CRAFT PUSH SWITCH CRAFT Individual microphone selection or sequential scan Adjustable scan rate Blinking low battery indicator Overall output level adjust Works with any audio spectrum analyzer Small diameter lightweight umbilical cable from the multiplexer to your analyzer ...

Page 5: ...three is selected once more and microphone four is selected Pressing it once again starts automatic scan mode which cycles through all four microphones one at a time Pressing it one more time resets the MMP 10 to microphone one Typical analyzer equipment is shipped with only a single microphone The MMP 10 allows you to expand your equip ment to four microphones Such multi microphone measure ment t...

Page 6: ...iometers R10 R20 R30 R40 as these are adjusted at the factory Switch the MMP 10 to scan mode and observe the display of all four microphones Different analyzers will integrate this switched signal in various ways Adjust the scan rate potentiometer R60 to achieve a smooth stable display If the timing is too slow the display will bounce Initial Calibration R48 R49 R50 R51 4520 4052 34184 34184 34184...

Page 7: ...in the projection booth Switch on Pink Noise Your MMP 10 wakes up with microphone one selected Verify you have a signal from microphone one on your analyzer Select microphone two three then four to verify operation Select multiplex mode indicated by the LEDs flashing in order red green green green and set your analyzer to the proper level and commence room equalization The multiplexer has been des...

Page 8: ...nalyzer MMP 10B Microphone Multiplexer MMP 10B Low Battery Indicator 1 2 3 4 The microphones should be placed in the listening environ ment as shown above Figure 1 Variations may apply de pending upon size and shape of the auditorium but a diamond formation is best for overall sound field measurement Figure 1 Ideal Microphone Placement ...

Page 9: ...lace the stands in the desired locations Figure 3 in the theater or other venue Figure 2 Figure 3 Low battery voltage can cause the unit to not switch properly and may cause measurement errors To avoid this the MMP 10 incorporates a low battery sensing circuit When the battery voltage drops too low the unit will reset to microphone one and the red LED will blink Replace the battery with a standard...

Page 10: ...n 3 390Ω 390Ω 33µf NP 33µf NP 1k 1k MMP Adapters The MMP 10 output is a 3 pin female XLR connector Included is an adapter to a 3 pin male XLR connector MMP ADS Other adapters are available to convert to almost any analyzer or sound processor Model MMP ADS MMP AD1 MMP AD2 MMP AD5 Connector Type 3 pin XLR male 6 pin XLR female 3 pin Mini XLR male 1 8 Stereo Phone Plug For Use With Audio Control Gold...

Page 11: ...hms Number of microphone channels 4 Individual microphone channel adjustment range 9dB Microphone scan rate 7 to 21 Hz adjustable Power source 9 volt battery Current drain Approx 20 ma Meets CE Approval Standards Output level 15mV 36 dB Microphone scan rate 10Hz 1K ohm load on each leg of the balanced output 1K ohm load on each leg of the balanced output Factory Settings ...

Page 12: ...12 Ultra Stereo Labs Inc 181 Bonetti Drive San Luis Obispo CA 93401 USA Telephone 805 549 0161 FAX 805 549 0163 e mail usl uslinc com 1996 1998 Ultra Stereo Labs Inc San Luis Obispo CA USA All Rights Reserved Q u a l i t y C i n e m a P r o d u c t s ...

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