Extron electronics | MPA 122 | MPA 122 - Extron Electronics

Audio Power Amplifiers
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 amplification 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 amplifier clipping
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
Amplifier 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
• 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
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)
Note: For complete specifications, please go to www.extron.com
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.
PC
VGA w/
Audio Cable
DVD
S-video
Audio RCA
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.
Two-Way Ceiling
Speakers
VCR
Composite
Audio RCA
4/8
8 Ohm Ceiling
Speakers
in Parallel
Extron
MPA 122
Mini Power Amplifier
Variable
Audio
Output
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
R
VC
F
OF
D
DV
ComLink
ON
PC
E
MUT
Ext
Audio input
686
2
12
MPA UTS RS
TP KE
OU SPEA
ms
Oh
TS
INPU
SPECIFICATIONS
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
Extron
SI 26X
3
ron
Projector
Extron
MLC 104 IP Plus
1
Controller
2
IR Remote
Remote Control Options
Extron
VCM 100 AAP
Volume/Mute
Controller
in AAP 100 Frame
1
IR Remote - input selection and volume control through projector
2
VCM 100 Volume/Mute Controller - direct MPA 122 control
3
MLC 104 IP Plus Controller - input selection and volume control through projector
Model
VERSION DESCRIPTION
MPA 122
22 Watt Two Channel Mini Power Amplifier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-668-01
Optional Accessories
Model DESCRIPTION
VC 50
VCM 100 AAP
VCM 100 MAAP
PMK 100
PMK 300
Volume Control Wall Plate.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 702
Volume and Mute Controller - AAP Version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 702
Volume and Mute Controller - MAAP Version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 702
One VersaTools®, 1/4 Rack Width Pole Mount Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 852
Multi-Product Pole Mount Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 852
USA West
+1.714.491.1500 / +800.633.9876
+1.714.491.1517 FAX
page
USA East
+1.919.863.1794 / +800.633.9876
+1.919.863.1797 FAX
PART #
PART #
70-530-02
70-396-11
70-397-11
70-217-01
70-374-01
www.extron.com
© 2010 Extron Electronics. All rights reserved.
Pricing and specifications may change without notice.
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