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Manual-1

OPERATORS  MANUAL

QUICK START

Shredded, this document makes excellent packing material. In its present form, it makes interesting and useful reading.

If you run out of patience quickly, at least read this part to make sure you don’t exterminate everything within a two mile
radius by doing something wrong.

Attach one or two channels of inputs and outputs to the respective connectors on the rear.

 This device uses low imped-

ance balanced line drivers. 

Do not

 connect the XLR “+” or “–” output pins to ground, as this may cause the power supply

to shut down. For unbalanced use, leave the unused output pin (“+” or “–”) unterminated.

With the 

RATIO

 turned all the way 

down

 at 

1:1

THRESHOLD

 turned all the way 

up 

to 

20 dBu, 

and the 

LEVEL

controls in their 

center 

at 

0 dB,

 

you have an expensive patch cord.

While sending a signal to the MC 22, adjust the 

INPUT LEVEL

 so the 

+4 dBu

 LED lights occasionally, but the 

OL

LED does not light. Now increase the 

RATIO 

to something useful, like 

2:1 

(with the control set at 2, the Ratio is 2:1; at 5,

it is 5:1.) Adjust the 

THRESHOLD 

to the point you want the Compressor to kick in. The 

GAIN REDUCTION

 meter

reads the amount of signal compression.

Both Compressors will activate by the source material applied to either Channel if the 

LINK

 switch is 

ON

. This is the

preferred setting for stereo program material.

WEAR PARTS:

 This product contains no wear parts.

MC 22

STEREO COMPRESSOR

Summary of Contents for MC 22

Page 1: ...pin or unterminated With the RATIO turned all the way down at 1 1 THRESHOLD turned all the way up to 20 dBu and the LEVEL controls in their center at 0 dB you have an expensive patch cord While sendi...

Page 2: ...on is active This automatic downward expander circuit acts like a gate to keep the system quiet when no signal is present When the input level drops below 55 dBu downward expansion occurs at a ratio o...

Page 3: ...hen either Channel s signal exceeds the set Threshold preserving stereo imaging CHANNEL 1 INPUT Choose between the balanced XLR or the balanced unbalanced TRS jacks but only use one Inserting a TS jac...

Page 4: ...al increase depends on the RATIO setting An ordinary preamp set for unity gain or a straight wire has a ratio of 1 1 that is the output level tracks the input level perfectly A 2 dB change at the inpu...

Page 5: ...and before the preamp If it s to function as a limiter to protect the speakers in the rig it would go after the preamp and before the power amp Another method is to insert the unit in the effect loop...

Page 6: ...SION Let s run a stereo system with compression see Figure 1 on the next page For this example we use a Rane Mojo MX 22 2 Way Crossover and a Mojo MQ 302 Stereo Equalizer along with the MC 22 Stereo C...

Page 7: ...Manual 7 Figure 1 Sound system with compression example Figure 2 Sound system with Driver protection...

Page 8: ...email the factory download it from Rane s web site addresses on page Manual 12 or ask your dealer for a copy Rane s policy is to accommodate rather than dictate However this document contains suggesti...

Page 9: ...Manual 9 VARIOUS XLR CABLE ASSEMBLIES...

Page 10: ...term downward expander describes this application type ground Any electrical reference point for measuring voltage levels Usually a large conducting body such as the earth or an electric circuit conne...

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