CM-80/80E INSTRUCTION MANUAL ULTRA
★
STEREO LABS, INC.
- 11 -
Installation
Mount the CM-80/80E
The ideal place for the CM-80 Monitor is in the sound rack or
projector console between the stereo processor and power
amplifiers. The terminal blocks on the rear of the CM-80 are
designed to facilitate the application of stripped and tinned
wire leads.
Monitor Hookup
Follow the illustration on page 12 to connect the CM-80 and
make sure all cable shields are tied at only one end to their
ground wire to prevent hum. The terminals on the CM-80/80E
are such that no spade lugs are necessary. Use a high quality
cable such as Belden #8451. Set the "Processor Level" and
"Amplifier Level" trim adjustments to their mid positions. For
installations where speakers are not bi or tri-amplified,
connect the left, center, and right amplifier inputs to their ‘Low’
monitor input terminals. If you will be using the CM-80/80E to
drive an external speaker, remove the jumper that connects the
Speaker + terminal to the INT SPKR terminal.
Split Surround Processors
For connection to split-surround processors such as the
Ultra
★
Stereo model JS-230, connect the Left and Right processor
outputs to the CM-80 Surround Left and Surround Right inputs,
respectively.
Setting Levels
Run a pink noise test film such as Ultra
★
Stereo Type 1 or Dolby®
Cat. 69. Set the processor main fader and power amplifier levels
so the house speakers are playing back at the normal listening
level. Set the Processor/Amplifier switch to Processor and note
the reading on the front panel bargraph meter. Next, set the
Processor/Amplifier switch to Amplifier, and adjust the Amplifier
Level trimpot on the rear of the unit for the same bargraph reading.
