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- 13 -

CM-680

 I

NSTRUCTION 

M

ANUAL

 Ultra    Stereo Labs, Inc.

- 2 -

CM-680

 I

NSTRUCTION 

M

ANUAL

 Ultra    Stereo Labs, Inc.

Introduction .........................................................3

Front & Rear Panel Description............................5

Installation............................................................7

Crossover Setup...................................................11

Table of Contents

Please record the following information for your records:

Model: ___________________ Serial Number: ___________

Date of Purchase: __________ Purchased from: __________

Speaker     

 Crossover Frequency             Time Delay

JBL 4675D         

500Hz      

    

1.8ms.

JBL 4670           

800Hz                   

0.7ms,

JBL 5671           

330Hz                    

1.4ms

JBL 5672       

297Hz                    

1.8ms.

JBL 5674

297Hz

1.8ms

EV TS940           

800Hz                    

0.7ms.

EV TS992LX       

500HZ                   

1.8ms.

EV 9040               

500Hz                    

1.8ms

EV Variplex              

330Hz                    

1.4ms

EAW CB2591

500Hz

     

1.8ms

EAW CB259

800Hz

     

0.7ms

EAW CB253

350

     

0.7ms

1. Bypass Card XTB-680: 

When using external crossovers, the CM-680

must be equipped with a bypass card in the crossover slot. For connection

to a CP-650, slide dip switches D,E, & F on the XTB-680 to the “ON”

position. When using other electronic crossovers or speakers with passive

crossovers,  turn  DIP  switches  A,B  &  C  to  “ON”.  See  figure  #8

Connect crossover inputs to rear of CM-680 at Ll, Cl &Rl as per Fig.4

(Page9)

Figure 7

Summary of Contents for CM-680

Page 1: ...esigned to facilitate the exchange of information related to cinema projection and film handling with no warranties nor obligations from the authors for qualified field service engineers If you are no...

Page 2: ...dicator illuminates when the corresponding channel is selected A volume control sets the speaker output level and works independently of the front panel VU bargraph meter A push button switch with cor...

Page 3: ...ied Such warranty shall not apply to any product or component A repaired or altered by anyone other than USL Inc or an authorized service contractor B tampered with or altered in any way or subjected...

Page 4: ...0Hz 0 7ms JBL 5671 330Hz 1 4ms JBL 5672 297Hz 1 8ms JBL 5674 297Hz 1 8ms EV TS940 800Hz 0 7ms EV TS992LX 500HZ 1 8ms EV 9040 500Hz 1 8ms EV Variplex 330Hz 1 4ms EAW CB2591 500Hz 1 8ms EAW CB259 800Hz...

Page 5: ...ng life All Ultra Stereo equipment has been burned in at the factory for an extended period in order to eliminate the possibility of premature failure Unpack the unit carefully If the container has be...

Page 6: ...1 8 ms Refer to figure 7 Likewise a loudspeaker requiring 1 4 ms delay should require all the DIP switches in the second row to be turned ON For loudspeakers requiring only 0 7 ms delay leave all the...

Page 7: ...erting a mono or stereo 1 4 phone plug here disables the internal speaker and routes the audio output to the Test Jack Do not connect any device here with less than 8 Ohms impedance 8 Internal Speaker...

Page 8: ...Bsr CM 680 MONITOR CROSSOVER WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS A P P L I A N C E TO R A I N O R MOISTURE DO NOT REMOVE COVER NO USER SERVICE ABLE PARTS INSIDE REF...

Page 9: ...ts are balanced Please use two conductor shielded cable to minimize ground loops and hum Connect each of the crossover channel outputs to the appropriate amplifier inputs 4 Monitor Inputs From Power A...

Page 10: ...ts are balanced Please use two conductor shielded cable to minimize ground loops and hum Connect each of the crossover channel outputs to the appropriate amplifier inputs 4 Monitor Inputs From Power A...

Page 11: ...Bsr CM 680 MONITOR CROSSOVER WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS A P P L I A N C E TO R A I N O R MOISTURE DO NOT REMOVE COVER NO USER SERVICE ABLE PARTS INSIDE REF...

Page 12: ...playing back at the normal listening level Select some source material like pink noise Set the Processor Amplifier switch to Processor With the monitor volume to 7 adjust the Processor trimpot for a c...

Page 13: ...1 8 ms Refer to figure 7 Likewise a loudspeaker requiring 1 4 ms delay should require all the DIP switches in the second row to be turned ON For loudspeakers requiring only 0 7 ms delay leave all the...

Page 14: ...ng life All Ultra Stereo equipment has been burned in at the factory for an extended period in order to eliminate the possibility of premature failure Unpack the unit carefully If the container has be...

Page 15: ...0Hz 0 7ms JBL 5671 330Hz 1 4ms JBL 5672 297Hz 1 8ms JBL 5674 297Hz 1 8ms EV TS940 800Hz 0 7ms EV TS992LX 500HZ 1 8ms EV 9040 500Hz 1 8ms EV Variplex 330Hz 1 4ms EAW CB2591 500Hz 1 8ms EAW CB259 800Hz...

Page 16: ...ied Such warranty shall not apply to any product or component A repaired or altered by anyone other than USL Inc or an authorized service contractor B tampered with or altered in any way or subjected...

Page 17: ...dicator illuminates when the corresponding channel is selected A volume control sets the speaker output level and works independently of the front panel VU bargraph meter A push button switch with cor...

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