Summary of Contents for Monster Power Signature MPA2250
- Page 1 ® Signature MPA 2250 Monster Home Theater Music Two Channel Reference Power Amplifier Signature MPA 3250 Monster Home Theater Music Three Channel Reference Power Amplifier Owner’s Manual...
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Page 3: Table Of Contents
TABLE OF CONTENTS Page Important Safety Instructions Introduction ... . Overview ....Installation Guidelines ..Connection Guide . -
Page 4: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS Please read and observe the following safety points at all times: Read these instructions. • Keep these instructions. • Heed all warnings. • Follow all instructions. • Do not use this apparatus near water. • Clean only with dry cloth. •... - Page 5 A. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not operate near rain or water that’s spilled or openly exposed (e.g., bathtub, kitchen or bathroom sink). B. Do not operate your Monster Reference Home Theater Music Power Amplifier if liquid of any kind is spilled onto or inside the unit.
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Page 6: Introduction
It takes a very special amplifier design to satisfy the needs of both home theater and music. I hope you enjoy your favorite music and movies even more with your new Monster home theater music amps. Monsterously,... - Page 7 THE MONSTER BACKBONE Monster recently introduced a new way of looking at a total home theater music experience. It all starts with the “polluted” AC power from your wall. Power line noise, spikes, sags, noise from your own components, noise generated from other devices on the same electrical circuit as your system —...
- Page 8 Noel Lee – Noel Lee is best known for popularizing the concept of high performance audio cable over 20 years ago with his creation of Monster Cable. Originally a laser-fusion design engineer at Lawrence Livermore National Laboratory and later a touring musician, Noel has invented or co-invented over 125 U.S.
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Page 9: Overview
Reference Amplifier. For full Home Theater Music enjoyment please read through this entire manual before proceeding with setup. BEFORE YOU BEGIN Please make sure you have the following to best enjoy the high performance of your Monster Home Theater Music Reference Power Amplifier. A. This owner’s manual. -
Page 10: Installation Guidelines
The meters show the current output of the channel indicated in watts. Monster recommends that the MPA 3250 3 channel amplifier be used for the front channels, and the MPA 2250 for the rear channels. When positioning the amplifiers on shelving or in a rack, it is recommended that the MPA 3250 be above the MPA 2250. - Page 11 RACK MOUNTING Your new Monster power amplifier comes with front and rear rack mounting for installing in equipment racks. The front rack ears are separate from the unit and must be installed prior to rack mounting. Please follow these instructions to mount your monster amplifier into a rack.
- Page 12 3. Carefully replace the 5 Allen screws on each side. Make sure that the screws are tight. Take care when tightening to not over tighten the screws. 4. Carefully place the amplifier into the rack. Hold in position and tighten the front screws while continuing to support the amplifier.
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Page 13: Connection Guide
CONNECTION GUIDE The following section will guide you through the steps required to connect your Monster Power Amplifiers to the rest of your system. Read through this section carefully before connecting. This section has been broken into steps for each amplifier. For a complete system diagram see Appendix A. - Page 14 Connect amplifiers to AC power last to ensure damage will not occur. TRIGGER CONNECTIONS The Monster Home Theater Music Reference Power Amplifiers feature remote trigger input and output to turn the amplifier on/off with the receiver/preamp. These connections use a 1/8”-to-1/8” mono mini cable included with the amplifier.
- Page 15 6. Amplifier Input – Monster has provided both Unbalanced (RCA) and Balanced (XLR) inputs to match a variety of products. 7. Grounding Connection – Connection to ground for other units in the system. If using Monster Power units, connect the amplifier ground posts to their ground posts to maintain the lowest possible noise floor.
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Page 16: Mpa3250 Connections
MPA3250 CONNECTIONS STEP 1 A For Unbalanced RCA Connections 1. Connect one end of the unbalanced RCA type interconnects to the preamp outputs of your receiver/preamp. 2. Connect the other end of the balanced interconnects to the appropriate channel inputs on the MPA3250. From From From... - Page 17 STEP 1B For Balanced XLR type connections. 1. Connect one end of the balanced XLR type interconnects to the preamp outputs of the receiver/preamp you wish to use. 2. Connect the other end of the balanced interconnects to the appropriate channel inputs on the MPA 3250. From From From...
- Page 18 (REPLACE WITH SAME SIZE AND RATING) SPEAKER OUTPUT 1 (REPLACE WITH SAME SIZE AND RATING) (RIGHT) (CENTER) (LEFT) MPA 3250 MONSTER HOME THEATRE MUSIC THREE CHANNEL REFERENCE POWER AMPLIFIER AC 120V/240V SWITCHABLE Right Front Speaker Center Front Speaker Left Front Speaker STEP 3 Remote Trigger Connections 1.
- Page 19 FUSE 6A SLOW 240V VOLTAGE SELECTOR AC IN 120/240V SWITCHABLE 2. Connect one end of the supplied Monster AC power cord to the MPA 3250. 3. Connect the other end into the wall or Monster Power Center. VOLTAGE SELECTOR SPEAKER OUTPUT 2...
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Page 20: Mpa2250 Connections
7. Amplifier Input – Monster has provided both Unbalanced (RCA) and Balanced (XLR) inputs to match a variety of products. 8. Grounding Connection – Connection to ground for other units in the system. If using Monster Power units, connect the amplifier ground posts to their ground posts to maintain the lowest possible noise floor. - Page 21 MPA 2250 CONNECTIONS STEP 1A For Unbalanced RCA Connection 1. Connect one end of the unbalanced RCA type interconnects to the Left and Right channel preamp outputs of your receiver or preamp processor. 2. Connect the other end of the unbalanced interconnects to the appropriate channel inputs on the MPA 2250.
- Page 22 STEP 1B For Balanced XLR Connections 1. Connect one end of the balanced XLR type interconnects to the Left Rear and Right Rear channel preamp outputs of your receiver/preamp. 2. Connect the other end of the balanced interconnects to the appropriate channel inputs on the MPA 2250.
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Page 23: Speaker Connections
SPEAKER OUTPUT 2 SPEAKER OUTPUT 1 (REPLACE WITH SAME SIZE AND RATING) (REPLACE WITH SAME SIZE AND RATING) (RIGHT) (LEFT) MPA 2250 Signature MONSTER HOME THEATRE MUSIC TWO CHANNEL REFERENCE POWER AMPLIFIER AC IN 120/240V SWITCHABLE Right Front Speaker Left Front Speaker... - Page 24 STEP 4 Remote Trigger Connections 1. Connect one end of the 1/8”-to-1/8” mono mini cable to the remote output of your receiver/preamp (or MPA 3250). Should your receiver not have a remote trigger out, the 12V power transformer can be plugged into the switched AC outlet on the back of your receiver.
- Page 25 FUSE 6A SLOW 240V VOLTAGE SELECTOR AC IN 120/240V SWITCHABLE 2. Connect one end of the supplied Monster AC power cord to the MPA 3250. 3. Connect the other end into the wall or Monster PowerCenter. VOLTAGE SELECTOR SPEAKER OUTPUT 2...
- Page 26 MPA 2250 BRIDGED MONO CONNECTIONS The MPA 2250 is designed to be used in a 2 channel system; in some of these systems more power may be required. In that case, two MPA 2250 amplifiers can be used in bridged mono mode which doubles the power output of the amplifiers.
- Page 27 STEP 1B Balanced XLR type connections 1. Connect one end of the balanced XLR type interconnect to the preamp output of the receiver/preamp you wish to use. 2. Connect the other end of the balanced interconnect to the right channel input on the MPA 2250. From Balanced (XLR) Channel Output...
- Page 28 SPEAKER OUTPUT 1 (REPLACE WITH SAME SIZE AND RATING) (REPLACE WITH SAME SIZE AND RATING) (RIGHT) (LEFT) MPA 2250 Signature MONSTER HOME THEATRE MUSIC TWO CHANNEL REFERENCE POWER AMPLIFIER AC IN 120/240V SWITCHABLE Speaker Positive + Speaker Negative - Terminal Terminal...
- Page 29 STEP 5 AC Power Connections Monster amplifiers can be run at 115V or 230V. Verify that the voltage switch is in the correct position for your location. In the US this should be set to 115V. 1. Set the AC power selector switch to the proper voltage.
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Page 30: Amplifier Operation
BRIGHTNESS TOTAL WATTS Signature MPA3250 MONSTER HOME THEATRE MUSIC THREE CHANNEL REFERENCE POWER AMPLIFIER 1. Channel Output Power Meters – Shows the current power output in watts for the Left, Center and Right Channels respectively. 2. Power Indicator – Illuminates blue when amplifier is powered ON. - Page 31 BRIGHTNESS Signature MPA 2250 MONSTER HOME THEATRE MUSIC TWO CHANNEL REFERENCE POWER AMPLIFIER 1. Channel Output Power Meters – These meters show the current power output in watts for the Left and Right Channels respectively. The center display shows the Total Power Output for both channels.
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Page 32: Troubleshooting
TROUBLESHOOTING The following section lists some basic troubleshooting types should you encounter issues when using your Monster Power Amplifier(s). Symptom Possible Cause Remedy Amplifier Does Not Turn On Power Cord Disconnected Check power cord and connect to AC Line Blown Power Fuse Check Main power fuse on back of amplifier. -
Page 33: Specifications
SPECIFICATIONS MPA2250 SPECIFICATIONS Number of Channels 2 Channels Bridgeable Power Output - Stereo 250w @ 8Ω from 20Hz – 20kHz all channels driven 400w @ 4Ω from 20Hz – 20kHz all channels driven Power Output – Bridged Mono 650w @ 8Ω from 20Hz – 20kHz all channels driven THD + Noise <0.01% at 1 KHz and <0.02% at 20 KHz, at rated power 8 Ohms Frequency Response... - Page 34 MPA3250 SPECIFICATIONS Number of Channels 3 Channels Non Bridgeable Power Output - Stereo 250w @ 8Ω from 20Hz – 20kHz all channels driven 400w @ 4Ω from 20Hz – 20kHz all channels driven THD + Noise <0.01% at 1 KHz and <0.02% at 20 KHz, at rated power 8 Ohms Frequency Response 20 Hz –...
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Page 35: Appendix A - System Connection Diagram
(RIGHT) (CENTER) (LEFT) (RIGHT) (CENTER) (LEFT) MPA 3250 MPA 3250 MONSTER HOME THEATRE MUSIC THREE CHANNEL REFERENCE POWER AMPLIFIER MONSTER HOME THEATRE MUSIC THREE CHANNEL REFERENCE POWER AMPLIFIER AC 120V/240V AC 120V/240V SWITCHABLE SWITCHABLE Monster Power Center Monster Power Center... - Page 36 (REPLACE WITH SAME SIZE AND RATING) (REPLACE WITH SAME SIZE AND RATING) (RIGHT) (LEFT) MPA 2250 Signature MONSTER HOME THEATRE MUSIC TWO CHANNEL REFERENCE POWER AMPLIFIER AC IN 120/240V SWITCHABLE Monster Power Center Speaker Positive + Speaker Negative - Terminal...
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Page 37: Appendix B - Amplifier Dimensions
7.3in / WATTS WATTS LEFT CHANNEL RIGHT CHANNEL WATTS TOTAL LEFT CHANNEL POWER RIGHT CHANNEL 171mm 186mm FULL POWER FULL POWER POWER DISPLAY ON/OFF BRIGHTNESS Signature MPA 2250 MONSTER HOME THEATRE MUSIC TWO CHANNEL REFERENCE POWER AMPLIFIER 20.25in / 514mm... - Page 38 7251 Lake Mead Blvd West • Las Vegas, NV 89128 • USA Visit us on the web at: MonsterPower.com “Monster” “Monster Cable” “Monster Power” “Clean Power” and “PowerCenter” are registered and unregistered trademarks of Monster, LLC. © 2003 Monster, LLC...