The black MA-725F Matrix Mixer/Amplifier from Toa Electronics is an all-in-one solution for multi-channel or multi-zone applications combining a 6x4 audio matrix, DSP, and 4-channel Class-D amplifier into one chassis. It is equipped with four independent line inputs, two mic/line priority inputs, and four outputs. Each output channel features a 250W Class-D amplifier with 64 DSP preset selections for general equalizations, crossover for subwoofer, and EQ settings. The mic/line inputs have first and second priority levels which can override at assigned output channels automatically or manually. All assignments and setups can be done by dip switches on its rear panel without a laptop or a PC.

An optional WP-700-AM wall remote can be connected to the amplifier via a CAT5 cable, allows remote audio source selection and volume controls. The MA-725F Matrix Amplifier is suitable for wide range of applications that require multi-zone paging and/or background music distribution at restaurants, clubs, retail stores, schools, offices, factories, etc.

Four stereo-summing line inputs with matrix routing to four amplifier outputs

Each line input has input level adjustment and assign restriction setting for each output to prevent wrong routing selection

Two priority mic/line inputs with different priority level for paging or other pre-recorded source which can override the selected line input on assigned output channels

Each priority input also has input level, mute sensitivity, and mute hold time adjustments

Each output channel is equipped with 250W Class-D amplifier at 70V/100V output voltage selectable with independent DSP preset selection and 50 Hz HPF for the protection of connected speakers

Selectable DSP preset selections include general EQs, like loudness curves, TOA speaker EQs, and crossover settings to be used with subwoofers

Each output channel also has auxiliary line output to deliver audio to other systems

Class-D amplifier has various protection features against overcurrent, high temperature, and short circuit of speaker lines at each output channel

Power supply with Power Factor Correction for reduced power consumption and world-wide operating range

Does not require any PC programming or network connection for setup at site (maintenance purpose only)

An optional WP-700 wall mount remote control can be connected via CAT5 straight LAN cable to control the line input selection and output volume of each output

Related Questions and Answers

Q: 1. How do I get more paging volume?

A: If you've maxed out the volume knob on the input and master output, there are few things you can look at. Consider what the speaker taps are set to, also speaker sensitivity has a direct impact on how loud the speaker will sound. Take a look at the source. Is it mic or line? All of these things affect the level. If you've addressed these concerns, and your system isn't loud enough, chances are you may need more power; either on the speaker side, or the amp side.

Q: 2. How to install this amp?

A: Here is some very useful and important information (taken from page 4 of the owner's manual) regarding the installation process of this amplifier.1) Install the equipment rack on a stable, hard floor. Fix it with anchor bolts or take other arrangements to prevent it from falling down. 2) When connecting the unit's power cord to an AC outlet, use the AC outlet with current capacity allowable to the unit.3) No rack-mounting screws are supplied with the unit. Separately prepare the appropriate screws for the rack.4) Keep the amplifier over 10 cm (3.94 ) away from objects that may obstruct airflow to prevent the unit's internal temperature rise.

Q: 3. Is this amp (TOA A-2240) rack mountable? If so, what is the product number for brackets?

A: There is not a rack kit available, but you could use a rack shelf.

Q: 4. Where is the AUX port to hook up to a mobile device to stream music?

A: Line 2 and Line 3 inputs have RCA style inputs as well as bare wire.

Q: 5. What amp do you recommend for this?

A: If you are running just one sub, you can use the Crown XLi 800 in Bridged Mode, which will deliver 600 watts at 8 Ohms. If you are using two subs, consider the QSC GDX 4, which delivers 600 watts at 8 Ohms per channel. https://www.bhphotovideo.com/c/product/1100330-REG/qsc_gxd_4_professional_power.html https://www.bhphotovideo.com/c/product/1126335-REG/crown_audio_xli800_600w_2_channel_stereo.html

Q: 6. I have the Ashly 8.2t+ passive speakers. Is this amp comparable for conference room sound reinforcement?

A: Yes the Rane Commercial MA 3 Amplifier is directly compatible with the Ashly AW 8.2T+ Passive 8" 2-Way Installation Speaker with Transformer (White, Pair) for conference room sound reinforcement.

Q: 7. Where is this unit manufactured, as labeled on the unit? Please no opinions, just facts.

A: The Toa Electronics CA130 30W Mobile Mixer Amplifier with Microphone is manufactured in Indonesia.

Q: 8. Do you connect a tuner or cd player to the RCA connectors?

A: Yes, via terminal block or RCA jack.

Q: 9. does this model supply phantom power required by some mikes?

A: The TOA A-912MK2 is a modular unit that requires the purchase of individual input modules for mic connectivity. The M-01F features a female XLR mic input that does supply up to 22VDC phantom power.

Q: 10. why do the speakers have a background buzz?

A: It could be a number of things causing buzzing in your speakers. You will want to make sure that you are using speaker cable first. Then make sure that your power source is properly grounded. And make sure that you are using the correct terminal for your speakers (4 ohm, 8ohm, 70v, 25v).