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Extron electronics MPA 122 User Manual Page 1

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www.extron.com
© 2010 Extron Electronics. All rights reserved.
Pricing and specifications may change without notice.
USA West
+1.714.491.1500 / +800.633.9876
+1.714.491.1517 FAX
USA East
+1.919.863.1794 / +800.633.9876
+1.919.863.1797 FAX
China
+86.21.3760.1568 / +400.883.1568
+86.21.3760.1566 FAX
Japan
+81.3.3511.7655
+81.3.3511.7656 FAX
Europe
+31.33.453.4040/+800.3987.6673
+31.33.453.4050 FAX
Middle East
+971.4.2991800
+971.4.2991880 FAX
Asia
+65.6383.4400 / +800.7339.8766
+65.6383.4664 FAX
686
www.extron.com
© 2010 Extron Electronics. All rights reserved.
Pricing and specifications may change without notice.
USA West
+1.714.491.1500 / +800.633.9876
+1.714.491.1517 FAX
USA East
+1.919.863.1794 / +800.633.9876
+1.919.863.1797 FAX
China
+86.21.3760.1568 / +400.883.1568
+86.21.3760.1566 FAX
Japan
+81.3.3511.7655
+81.3.3511.7656 FAX
Europe
+31.33.453.4040/+800.3987.6673
+31.33.453.4050 FAX
Middle East
+971.4.2991800
+971.4.2991880 FAX
Asia
+65.6383.4400 / +800.7339.8766
+65.6383.4664 FAX
MPA 122
22 Watt Two Channel Integrated MPA - Mini Power Amplifier
feAtures
• Inputs:Balancedorunbalancedstereoonacaptivescrewconnector;unbalanced
stereo on RCA connectors and a 3.5 mm stereo mini jack
• Speakeroutputs:5mmcaptivescrewconnector
• ImprovedClassDamplicationdesign.
• 11wattsrmsperchannelinto4ohms,7wattsrmsperchannelinto8ohms
• THD+Noise:0.1%,1kHzatnominallevelfor1watt,8ohmload
• Frontpanelbass,treble,andinputlevelcontrols
• Balancedandunbalancedbufferedaudioinputs
• Frontpanelcliplimiterswitchtopreventamplierclipping
• Remotevolumeandmutecontrolport
• Plenumrated-meetsUL2043forheatandsmokerelease,excluding
powersupply
• Rack-mountable1U,quarterrackwidthmetalenclosure
• Externaluniversalpowersupplyincluded,part#70-380-01
descriPtion
The Extron MPA 122 Integrated Mini Power Amplifier provides stereo amplification for speaker
systems in classrooms and other applications requiring compact, economical audio solutions.
It is an ideal step-up from a basic classroom system utilizing built-in video projector speakers.
The MPA 122 delivers 11 watts rms per channel into 4 ohms and 7 watts rms into 8 ohms. It is
optimized for driving four 8 ohm ceiling speakers, two in parallel per channel.
The MPA 122 accepts balanced and unbalanced stereo inputs, and provides outputs as stereo
or dual mono audio signals. Front panel controls are provided for bass, treble, and input level.
The front panel also features switches for stereo/dual mono operation and a clip limiter switch
which automatically reduces the gain to prevent distortion or amplifier clipping. The MPA 122
features remote control capability for volume adjustment and muting.
model Version descriPtion PArt #
MPA 122 22 Watt Two Channel Mini Power Amplifier .......................................................... 60-668-01
oPtionAl Accessories model descriPtion PAGe PArt #
VC 50 Volume Control Wall Plate ...........................................................page 702 70-530-02
VCM 100 AAP Volume and Mute Controller - AAP Version
.........................................page 702 70-396-11
VCM 100 MAAP Volume and Mute Controller - MAAP Version
......................................page 702 70-397-11
PMK 100 One VersaTools
®
, 1/4 Rack Width Pole Mount Kit .................................. page 852 70-217-01
PMK 300 Multi-Product Pole Mount Kit
........................................................ page 852 70-374-01
sPecificAtions
Audio
Frequencyresponse ............... 20 Hz to 20 kHz, ±1 dB @ 1 watt output
THD+Noise............................ 0.1% @ 1 kHz at nominal level (1 watt, 8 ohm load)
S/N .......................................... >74 dB @ 20 Hz to 20 kHz at maximum output (unweighted, with balanced
input)
Stereo channel separation ...... >55 dB @ 1 kHz, >45 dB @ 20 kHz
CMRR ...................................... 80 dB @ 1 kHz, 70 dB @ 20 kHz
Audio inPut
Number/signaltype ................ 1 stereo, balanced/unbalanced input
2 stereo, unbalanced inputs
(The three inputs are individually buffered and mixed together.)
Connectors.............................. (1) 3.5 mm captive screw connector, 5 pole (main input)
(1) 3.5 mm mini audio jack (tip, ring, sleeve)
1 pair RCA
Nominallevel .......................... +4 dBu (1.23 Vrms) balanced or -10 dBV (316 mVrms) unbalanced
Maximum level
Level pot. at 10 o'clock ............. +6 dBV (unbalanced), +16 dBu (balanced) at 1% THD+N
Level pot. at 9 o'clock ............... +17 dBV (unbalanced), +27 dBu (balanced) at 1% THD+N
Inputlevelsensitivity .............. -18 dBV from unbalanced input for maximum output (11 watts with a 4 ohm
load and level set to maximum) before clipping
Audio outPut
Number/signaltype ................ 1 stereo or 2 mono (2 channels total)
Connectors.............................. (1) 5 mm captive screw connector, 4 pole
Minimum load impedance ...... 4 ohms
Ampliertype ......................... Improved Class D
Continuouspowerwithafullloadand1%THD
At 4 ohms ................................ 11 watts (rms) per channel
At 8 ohms ................................ 7 watts (rms) per channel
Dampingfactor ....................... >30 (with a 4 ohm load)
control/remote — AmPlifier
Control port ............................. (1) 3.5 mm captive screw connector, 3 pole
Pin configuration .................... Pin 1 = +10 VDC, pin 2 = volume/mute (variable voltage), pin 3 = GND
GenerAl
Externalpowersupply ............ 100 VAC to 240 VAC, 50/60 Hz, external; to 12 VDC, 3 A (max.), regulated
Power input requirements ...... 12 VDC, up to 3 A
Mounting
Enclosuretype ........................ Metal
Enclosuredimensions............. 1.7" H x 4.3" W x 3.0" D (1U high, quarter rack wide)
(4.3 cm H x 10.9 cm W x 7.6 cm D)
(Depth excludes connectors.)
Product weight ....................... 0.6 lbs (0.3 kg)
Shipping weight ...................... 3 lbs (2 kg)
Audio Power AmPlifiers
OUTPUTS
4/8 Ohms SPEAKERS
INPUTS
MPA 122
Extron
ON
OFF
VCR
DVD
PC
MUTE
MLC 104 IP Plus Controller - input selection and volume control through projector
Projector
Remote Control Options
IR Remote - input selection and volume control through projector
8 Ohm Ceiling
Speakers
in Parallel
PC
VGA w/
Audio Cable
DVD
S-video
Audio RCA
VCR
Composite
Audio RCA
Variable
Audio
Output
ComLink
IR Remote
Extron
MLC 104 IP Plus
Controller
Extron
VCM 100 AAP
Volume/Mute
Controller
in AAP 100 Frame
Extron
MPA 122
Mini Power Amplier
Extron
SI 26X
Two-Way Ceiling
Speakers
VCM 100 Volume/Mute Controller - direct MPA 122 control
1
2
3
1
2
3
Note: For complete specifications, please go to www.extron.com
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1

Summary of Contents

Page 1 - Mini Power Amplier

www.extron.com© 2010 Extron Electronics. All rights reserved.Pricing and specifications may change without notice. USA West +1.714.491.1500 / +800.633

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