Roland CPM-300, Owner'S Manual

Checking Out the Sound

Precautions When Turning on the Power

❏

To protect against malfunction and damage to speakers and other equipment, proceed with the following only after turning
down the volume for all devices.

❏

Turn each channel's SENS knob completely counterclockwise.

❏

Set each channel's EQ knobs to 0 (12 o'clock position).

❏

Set each channel's PAN and BAL knobs to the 12 o'clock position.

❏

Turn each channel's SEND and RETURN knobs completely counterclockwise.

❏

Completely lower all channel faders.

After properly connecting the equipment, switch on the power for each device in sequence, starting with the device
producing the sound, or into which the audio signals first enter (reverse the order when shutting off the equip-
ment).

Ex.)

CD Player, Synthesizer, etc.

→

Effects Processor or Other Processing Device 

→

CPM-300

* Using the improper sequence when turning the equipment on may result in malfunction or damage to speakers or other

equipment.

* After the CPM-300 is switched on, a protection circuit (the Muting Circuit) temporarily prevents the speakers from playing.

(For more information about the Muting Circuit 

→

p. 17).

Producing Sound with Microphones 

(Basic Knobs and Faders Adjustments)

Now, try using a microphone to get some sounds.

1.Connect a microphone to the CPM-300, and rotate the SENS knob slowly clockwise while speaking into the micro-

phone until the PEAK indicator lights up from time to time, then lower the level slightly to set the knob position.

2.Raise the channel fader to the 0 position (in the black range).

3.Adjust the overall volume with the MASTER fader. Adjust the SENS knob again if the PEAK indicator shows that

the signal is too hot (strong).

4.Set the sound image for each channel with the PAN and BAL knobs.

The black range along the channel fader and MASTER fader markings indicate the normal range
within which you can operate free of distortion or noise.

* Basic adjustments are the same as those made with CD players and other electronic musical instruments. After making rough

adjustments on the connected devices, proceed to "Adjusting the Sound Quality with the Equalizer".

Adjusting the Sound Quality with the Equalizer

The EQ (equalizer) knobs adjust the tone for each channel's input signals. Try rotating the EQ knobs while listening
to the sound coming from the speakers (or headphones). At the 0 position, the signal is "flat" (the same as the source
sound).

●

HIGH: This adjusts the tone in the higher frequency range.

With 12 kHz as the center frequency, the volume of the high range can be adjusted 15 dB up or down.

◆

Lowering the HIGH EQ cuts the high frequencies, resulting in a milder tone. Lowering this too much creates a tone that is
dull and dark.

◆

Raising the HIGH EQ boosts the high frequencies, providing a sound that is bright and crisp. Raising this too much creates a
sharp, edgy tone.

●

LOW: This adjusts the tone in the lower frequency range.

Centered on 80 Hz, the volume of the low range can be adjusted 15 dB up or down.

◆

Lowering the LOW EQ cuts the low frequencies. Use this technique to improve vocal intelligibility (such as in speeches) in
meeting rooms and similar venues.

◆

Raising the LOW EQ boosts the low tones. Use this on input from CDs or electronic instruments to give the sound more
punch.

After adjusting the sound with the equalizer, proceed to "Adding Reverberation to the Sound (Digital Reverb)" (

→

p. 13).

* A "Blank User Settings Chart" can be found on p. 24. 

Use this chart to record connections to other equipment, knob

positions, and other settings.

12

MEMO