TOA A-724 240W Mixer Amplifier

TOA 700 SERIES MIXER/AMPLIFIERS offer versatile features and outstanding value for installed sound applications such as boardrooms, educational facilities, houses of worship and many others. The 700 Series model lineup includes the A-706 (60 W), A-712 (120 W), and A-724 (240 W); all manufactured with proven TOA quality and reliability.

Features include six mic/line inputs, two auxiliary line inputs and a 900 Series module port. Each mic/line input includes a mic trim control and 23 VDC phantom power. Speaker outputs consist of 70.7 V, 25 V and 4 ohm. An auxiliary line output can be used for recording or connection to an external booster amplifier.

An Auto-Mute function provides voice-activated priority override. You can assign inputs to activate or respond to the muting function with rear panel DIP switches. Muting can also be activated with an external switch-closure. Other features include channel and master volume controls, bass/treble, processor insert jacks and output level meter. Master volume and power on/off can also be controlled remotely. Short-circuit and thermal protection circuitry ensures extended operation.

Optional accessories include the MB-25B rack-mount kit and YA-920 volume control security knob. The 700 Series is UL and cUL listed with competitive pricing and a five-year warranty.

Nine Channel Integrated Mixer/Amplifiers for paging and background/foreground music distribution
Proven TOA Quality and Reliability with wide frequency response, very low noise and distortion, and excellent output regulation
Six Mic/Line Inputs , balanced, with mic trim, 23 VDC phantom power and removable terminal block connector
Two Auxiliary Inputs , unbalanced, with dual-RCA jacks for convenient connection of stereo sources
Module Slot accepts 900 Series plug-in modules with additional features
Transformer-Isolation for Telephone Paging Applications (Input #1)
25 V, 70.7 V and 4 Ohm Speaker Outputs with removable terminal block connector
Auto-Mute Priority Function assignable via external switches:
- Channels 1-3 and Module configurable as Mute Send
- Channels 1-8 and Module configurable as Mute Receive
Auto-Mute SENSE Control for adjusting mute activation threshold
External Mute Terminals for activating mute function with external switch-closure
Individual Channel and Master Volume Controls
Bass/Treble Tone Controls
Output Level Meter and Power Indicator
Remote Master Volume controlled with an external 10k ohm linear-taper potentiometer
Auxiliary Output for connecting an external amplifier or recording device
Pre-amp. Out / Power Amp. In Insert Jacks for connecting external signal processors
Remote AC Turn-On for activating power with an external switch-closure
Turn-On Delay disconnects output during power-up
Over-current and Thermal Protection Circuitry prevents potential damage from overloads, short-circuit and overheating
Detachable IEC-type AC Power Cord
Volume Control Security Knobs Included (4)
Optional Rack-Mount Kit , model MB-25B (2 RU)
UL / cUL Listed

Specifications

Type	Nine channel mixer/amplifier
Output Power	240 W RMS
Frequency Response	50 - 20k Hz (±3 dB)
Total Harmonic Distortion	0.5% at 1k Hz, rated output
Inputs	- Input 1 - 6: Mic -70 to -50 dBV, 600/Line -10 dBV, 600 - Input 1: transformer-balanced, Phoenix 3P terminal - Input 2-6: electronically-balanced, Phoenix 3P terminal - Input 7 - 8: Line -20 dBV, 10k, unbalanced RCA pin jack (stereo-sum) - Module: Specifications dependent on module type - Power IN: 0 dBV, 10k, unbalanced, RCA pin jack
Outputs	Speaker OUT: 70.7 V line, 25 V line, and 4 - 16, Phoenix 4P terminal Minimum Impedance: - 70.7 V line: 83 (A-706), 42 (A-712), 21 (A-724) - 25 V line: 10 (A-706), 5.2 (A-712), 2.6 (A-724) Preamp OUT: 0 dBV, 600, unbalanced, RCA pin jack Rec OUT: 0 dBV, 600, unbalanced, RCA pin jack
Output Regulation	Less than 2 dB, no load to full load
Phantom Power	23 VDC, switchable, Inputs 1 - 6
Module Slot	Card edge connector connects to audio input and output points of TOA 900 Series modules. Use of Mute-type modules is not required in 700 Series models.
Dynamic Range	- Input 1 - 6: >70 dB - Input 7 - 8, Module: >80 dB - (Band Pass: 20 Hz - 20k Hz, with Tone Controls centered)
Tone Control	- Bass: ±10 dB at 100 Hz - Treble: ±10 dB at 10k Hz
Control Input	Remote Volume: - 10k linear-taper potentiometer - Phoenix terminal Power Remote: - No-voltage make contact input - Open voltage: 28 VDC (when unit power is OFF) - Short-circuit: Under 10 mA, Phoenix terminal Mute Control: - No-voltage make contact input - Open voltage: 28 VDC (when unit power is OFF) - Short-circuit: Under 10 mA, Phoenix terminal
Indicator	- 5-point LED output level meter - Power indicator LED
Power Source	120 VAC, 60 Hz
Power Consumption (Based on UL/CSA standard)	215 W
Operating Temperature	14º F to 104º F (-10º C to + 40º C)
Finish	- Panel: ABS resin, black, hair line - Case: Steel plate, black
Dimensions (W x H x D)	16.8" x 4.3" x 14.68" (420 x 107.7 x 367 mm)
Weight	29.84 lbs (13.5 kg)
Accessories (included)	4 x Volume Control Security Knobs: YA-920

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