Features; Handling Precautions - Toa MA-725F Operating Instructions Manual

4. FEATURES

• 4 stereo-summing line inputs with matrix routing to 4 amplifier outputs.
• Each line input has input level adjustment and assign restriction setting for each output to prevent wrong
routing selection.
• 2 priority MIC/LINE inputs with different priority level for paging or other pre-recorded source 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 50Hz 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 sub-woofers.
• Each output channel also has auxiliary line output to deliver the audio to other system.
• This matrix doesn't need any GUI or network connection for setup at site. (Maintenance purpose only)
• Optional wall mount remote control, WP-700 can be connected via CAT-5 straight LAN cable to control
line input selections and output volume of each output.
• Class-D amplifier has a lot of protection features against over current, high temperature and short circuit
of speaker lines at each output channel individually. (*)
• Power supply with Power Factor Correction for reduced power consumption and world-wide operating
range. (*)
(*) MA-725F only

5. HANDLING PRECAUTIONS

• Keep the input cable away from the output cable. If installed close to each other, oscillation could occur.
• To avoid unit failures, never connect outputs of 2 or more channels in parallel.
• Only connect speakers with an impedance equal to or greater than those specified. Connecting speakers
with a smaller impedance than specified could cause damage to the unit.
• Install the unit in locations where the temperature is between –10°C and +40°C (14°F and 104°F) and the
moisture is less than 90%RH (no dew condensation must be formed).
• To clean, be sure to first turn off this unit's power switch, then wipe with a dry cloth. When the unit gets
very dirty, use a cloth damped in a neutral cleanser. Never use benzene, thinner, alcohol, or
chemically-treated cleaning cloth because such volatile liquids could deform or discolor the unit.
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