Extron electronic MPA 122 user manual Table of Contents

Quick Start Guide — MPA 122, cont’d

Step 6

Adjust the MPA 122 input level, bass and treble.

a.If connecting to a projector, ensure that the volume on the device is at its lowest point, then adjust the level of the MPA 122 fully

counterclockwise.	LEVEL	BASS TREBLE
b. Set the projector volume to its maximum		MPA 122
volume level (no sound should come
out).		MINI POWER AMPLIFIER

c.Return to the MPA 122 and raise the level until sound distortion occurs, then lower slightly until distortion disappears. This setting ensures that, whatever the projector volume setting may be, no clipping occurs.

d.Adjust bass and treble to preference.

					8 ohm Ceiling
	DVD	PC			Speakers
					in Parallel
		VGA w/
	S-video
		Audio Cable
	Audio RCA
				122
				MPA UTS
				OUTP
			INPU	TS
VCR					Extron
					MPA 122
Composite
Audio RCA			Variable		Mini Power Amplifier
			Audio
			Output
	ComLink
	Extron				2
	MLC 104 IP				Extron
3			Projector		VCM 100 AAP
	Controller
Remote Control Options				1	Volume/Mute Controller
					IR Remote

1IR Remote - (input selection and volume control through projector)

2VCM 100 Volume/Mute Controller - (direct MPA 122 control)

3MLC 104 IP Controller - (input selection and volume control through projector)

Typical connection setup

Table of Contents

Chapter 1 • Introduction	1-1
About this Manual	1-2
About the MPA 122	1-2
Features	1-2
Chapter 2 • Installation and Operation	2-1
Installation Overview	2-2
Mounting the MPA 122	2-2
Rack mounting	2-3
Under-desk mounting	2-4
Projector mounting	2-5
Rear Panel Features	2-6
Power input	2-7
Audio inputs	2-7
Remote control	2-8
Audio output	2-8
Front Panel Features	2-8
Setting Up the MPA 122 Amplifier	2-9
Remote connector wiring	2-10
Chapter 3 • Remote Operation	3-1
Remote Control Options	3-2
Appendix A • Specifications, Part Numbers,
and Accessories	A-1
Specifications	A-2
Included Parts	A-5
Optional Accessories	A-5

	INPUTS
	C	US
POWER	L
	R	R
12V	L
3A MAX

	MPA 122
	OUTPUTS
	4/8 Ohms
REMOTE
10V	L	R
VOL/MUTE

All trademarks mentioned in this manual are the properties of their respective owners.

68-943-01 Rev. A

The Extron MPA 122 mini power amplifier

11 04

QS-2 MPA 122 • Quick Start Guide MPA 122 • Table of Contents iii