Roland CM-30 owner manual Level Knob, Phones Jack, LOW Knob, High Knob

Panel Descriptions

1. CH 1 knob / CH 1 Input Jacks

In addition to a 1/4” phone jack, this channel is equipped with a balanced XLR connector, useful for connecting microphones.

This accepts input levels ranging from mic input (-50 dBu) to line level from sound modules and other equipment (-20 dBu).

*The pin assignment for the XLR type connectors is as shown below. Before making any connections, make sure that this pin assignment is compatible with that of all your other devices.

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2.CH 2 and CH 3 knobs / CH 2 and CH 3 Input Jacks

Use these for connecting keyboards, sound modules, and other devices.

You can make stereo connections to these inputs.

If you connect only the L jack, the input will be mono.

If you’re using stereo connections, you can listen in stereo through headphones or when using a pair of stereo-linked CM-30 speakers.

They accept line level input (-20 dBu).

3. STEREO PHONES

The headphones allow you to listen in stereo.

LEVEL Knob

This knob adjusts the headphones volume.

PHONES Jack

This is for connecting headphones.

*Before plugging in or unplugging headphones, be sure to place the LEVEL knob at 0.

4.EQUALIZER

LOW Knob

This adjusts the level of the bass range.

HIGH Knob

This adjusts the level of the treble range.

5. MASTER Knob

This adjusts the total volume level of the unit’s internal speaker.

6. Power Indicator

This indicator illuminates when the power is on.

7. POWER Switch

This switches the power on and off.

*Always be sure to lower the MASTER knob on the CM- 30 to 0 whenever turning the power on or off.

*This unit is equipped with a protection circuit. A brief interval (a few seconds) after power up is required before the unit will operate normally.

Slight pop noise may come from the speakers when the power is switched on, but this does not indicate a problem.

*Refer to p. 9 for the order in which to turn the power to connected devices on and off.

8. AUX IN 1, 2 Jacks

AUX IN 1 are RCA phono type input jacks. AUX IN 2 is stereo miniature phone type input jack.

You use these to connect equipment such as CD and MD players, and have them sound along with the equipment connected to CH 1 through CH 3.

Both AUX IN 1 and 2 accept level input of -10 dBu.

*To adjust the volume level of equipment connected to the AUX IN jacks, use the controls on such equipment.

9. STEREO LINK

Stereo playback is enabled simply by connecting two CM-30 units with a single or double audio cables (phone type).

*For details on the Stereo Link function, refer to “Using Two CM-30 Speakers for Stereo Playback (Stereo Link)” (p. 10).

They provide -10 dBu line level output, and accept level input of -10 dBu.

10. AC IN Jack

Connect the included power cord to this jack.

*Use only the power cord included with the CM-30.

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