Description
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 6×4 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
Toa Electronics MA-725F Specs
| Form Factor/Type | Tabletop |
| Number of Channels | 4 Input / 4 Output |
| Power Rating | 250 W |
| Amplifier Class | Class-D |
| Load Impedance / Voltage | 70 V (20 Ohms Minimum) 100 V (40 Ohms Minimum) |
| Frequency Response | 20 Hz to 20 kHz +1/-3 dB |
| I/O Impedance | RCA Line Output: 600 Ohms (Unbalanced) Block MOH Output: 600 Ohms (Balanced) Block Priority Input: 2.2 Kilohms (Balanced) RCA Line Input: 10 Kilohms (Unbalanced) |
| Input Level | Mic: -60 dB Line: -10 dB |
| Output Level | Line Output: 0 dB (Unbalanced) MOH: 0 dB (Balanced) |
| SNR | Mic: ≥ 60 dB (A-Weighted) Line: ≥ 75 dB (A-Weighted) |
| THD+N | < 1% (1 kHz, at Rated Power) |
| DSP | Yes |
| Ducking/Muting | Yes |
| Audio I/O | 4 x RCA Unbalanced Line/Aux Output 1 x Block 3-Pin Balanced MOH Output (Detachable) 2 x Block 5-Pin Balanced Mic/Line Input (Detachable) 4 x Stereo RCA Unbalanced Summed-Mono Input |
| Other I/O | 1 x RJ45 Remote |
| Speaker Outputs | 4 x Block 2-Pin 70 V/100 V (Detachable) |
| AC Input Power | 100 to 240 VAC, 50 / 60 Hz |
| Power Consumption | 1350 W (Full Power) 200 W (cULus) 42.5 W (Idle) |
| Certifications | cULus, FCC, as per Manufacturer |
| Operating Temperature | 32 to 104°F / 0 to 40°C |
| Operating Humidity | 35 to 80% (Non-Condensing) |
| Dimensions | 16.5 x 4.2 x 13.8″ / 420.0 x 108.0 x 350.0 mm |
| Weight | 16.7 lb / 7.6 kg |
