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Summary of Contents for Extron electronics MPA 401-70V
- Page 1 User Guide Audio MPA 401 Series Mini Power Amplifiers 68-1436-01 Rev. C 12 10...
- Page 2 Precautions Safety Instructions • English Warning Power sources • This equipment should be operated only from the power source indicated on the product. This This symbol is intended to alert the user of important operating and maintenance equipment is intended to be used with a main power system with a grounded (neutral) conductor. The (servicing) instructions in the literature provided with the equipment.
- Page 3 CAUTION: A caution warns of things or actions that might damage the equipment. WARNING: A warning warns of things or actions that might cause injury, death, or other severe consequences. Copyright © 2010 Extron Electronics. All rights reserved. Trademarks All trademarks mentioned in this guide are the properties of their respective owners.
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Page 5: Table Of Contents
Contents Introduction ..........MPA 401-70V and MPA 401-100V Description 1 MPA 401-70V and MPA 401-100V Features ..2 Rear Panel and Cabling ......Rear Panel Cabling ........... 3 Power Input ............. 4 Audio Inputs ............ 5 Remote Input Connector........6 Speaker Connections ........ - Page 6 MPA 401-70V and MPA 401-100V • Contents...
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Page 7: Introduction
Both amplifiers accept balanced or unbalanced, stereo or mono inputs and provide a summed mono output. The MPA 401-70V delivers up to 40 watts (rms) for a high-impedance, 70 V distributed sound system. The MPA 401-100V delivers up to 40 watts (rms) for a high-impedance, 100 V distributed sound system. -
Page 8: Mpa 401-70V And Mpa 401-100V Features
Quick-plug speaker outputs — Speaker output is on a 5 mm screw lock captive screw connector for quick installation. ENERGY STAR qualified amplifier — The MPA 401-70V and MPA 401-100V amplifiers ® are ENERGY STAR qualified amplifier and energy efficient products that conserve energy and reduce costs. -
Page 9: Rear Panel And Cabling
Rear Panel and Cabling This section describes the rear panel features and cabling of the MPA 401-70V and MPA 401-100V. Rear Panel Cabling Power Input Audio Inputs Remote Input Connector Speaker Connections Rear Panel Cabling The illustration below shows the rear panel of the amplifiers:... -
Page 10: Power Input
When using the EPS 1250 C power supply, connect the two pole, 3.5 mm captive screw connector from the power supply to the power socket on the rear panel of the MPA 401-70V, as shown below in figure 3. Ensure the connections have the correct polarity as shown. -
Page 11: Audio Inputs
See the notes on page 4 for important information about Ring Sleeve Sleeve connecting wires to captive screw connectors. Unbalanced Mono Input Balanced Mono Input MPA 401-70V and MPA 401-100V • Rear Panel and Cabling... -
Page 12: Remote Input Connector
Left Sum and Right Sum are mixed and amplified to provide one high voltage, mono output. The MPA 401-70V provides up to 40 W for a 70 V line distributed sound system; the MPA 401-100V provides up to 40 W for a 100 V line distributed sound system. -
Page 13: Setup And Operation
MPA 401-70V and MPA 401-100V: Front Panel Features Setting Input Level Setting Bass and Treble Remote Control Options Front Panel Features The front panels of the MPA 401-70V and MPA 401-100V are identical and shown below: LEVEL BASS TREBLE MPA 401 MINI POWER AMPLIFIER Figure 5. -
Page 14: Setting Input Level
Turning the bass or treble potentiometers counterclockwise will decrease the output at the specified frequencies. Turning the potentiometers clockwise will increase the output. When the potentiometer is at the center detent, flat response is achieved. MPA 401-70V and MPA 401-100V • Setup and Operation... -
Page 15: Remote Control Options
In the above example, a MediaLink controller adjusts the audio volume via a network connection. Follow the instructions in the product guide. MPA 401-70V and MPA 401-100V • Setup and Operation... -
Page 16: Specifications
NOTE: 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu Audio output Number/signal type MPA 401-70V ......1 single channel (mono) 70 V MPA 401-100V ......1 single channel (mono) 100 V Connectors ........(1) 5 mm screw lock captive screw connector, 2 pole Load impedance MPA 401-70V ...... - Page 17 Output power MPA 401-70V ......40 watts (rms), 70 V, 1 kHz, 1% THD MPA 401-100V ......40 watts (rms), 100 V, 1 kHz, 1% THD Control/remote — amplifier Control port ........(1) 3.5 mm captive screw connector, 3 pole Pin configuration ......
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Page 18: Parts And Accessories
(1) 5-pole 3.5 mm captive screw plug (1) 3-pole 3.5 mm captive screw plug (1) 2-pole 3.5 mm power captive screw plug Tweeker (small screwdriver) MPA 401-70V and MPA 401-100V Setup Guide MPA 401-70V and MPA 401-100V • Parts and Accessories... -
Page 19: Optional Accessories
SPK16/1000 Non-Plenum 1000 feet (300 m) spool 22-151-03 SPK16P/1000 Plenum 1000 feet (300 m) spool 22-154-03 SPK18/1000 Non-Plenum 1000 feet (300 m) spool 22-150-03 SPK18P/1000 Plenum 1000 feet (300 m) spool 22-153-03 MPA 401-70V and MPA 401-100V • Parts and Accessories... -
Page 20: Mounting
Through-desk Mounting Projector Mounting Plenum Placement The MPA 401-70V and MPA 401-100V amplifiers meets UL 2043 requirements for heat and smoke release. They can be installed in the ceiling, out of sight, with reduced risk of theft. CAUTION: Although the amplifier is plenum rated, the power supply provided with it is not. -
Page 21: Rack Mounting
#4-40 Thread Thru Rack Mounting #4-40 Thread Thru Rack Mounting Figure 7. Points for Securing the Base of the MPA 401 to a Rack MPA 401-70V and MPA 401-100V • Mounting... -
Page 22: Rack Mounting Procedure
(part number 70-077-02) by following the instructions provided with the kit. Projector Mounting The amplifier can be mounted above a projector using the optional PMK 350 Pole mount kit (part number 70-563-03). Follow the instructions provided with each kit. MPA 401-70V and MPA 401-100V • Mounting... -
Page 23: Extron Warranty
In the event of malfunction during the warranty period attributable directly to faulty workmanship and/or materials, Extron Electronics will, at its option, repair or replace said products or components, to whatever extent it shall deem necessary to restore said product to proper operating condition, provided... - Page 24 +971.4.2991880 FAX Inside Asia Only Inside China Only Inside USA/Canada Only Inside USA/Canada Only Inside Europe Only +1.714.491.1500 +65.6383.4400 +86.21.3760.1568 +1.919.863.1794 +31.33.453.4040 +65.6383.4664 FAX +86.21.3760.1566 FAX +1.714.491.1517 FAX +1.919.863.1797 FAX +31.33.453.4050 FAX www.extron.com © 2010 Extron Electronics All rights reserved.
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