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TOA A-912MK2
900 Series 120W 8-Port Mixer/Amplifier with 25/70V Transformer or Low Impedance Operation

OUR PART #:  A912MK2UL

The TOA A-912MK2 mixer/amplifier is a part of the 900 Series, which are widely recognized as the industry standard in installed sound system amplifiers.
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TOA A-912MK2
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The TOA A-912MK2 mixer/amplifier is a part of the 900 Series, which are widely recognized as the industry standard in installed sound system amplifiers. When reliability and performance are critical – such as in paging and music distribution for airport, hospital, and industrial sound systems – you can count on the TOA 900 Series to perform consistently, day-in and day-out. The A-912MK2 (120W) Modular Mixer/Amplifier is engineered for high performance with wide frequency response, very low noise and distortion, and excellent output regulation.

The A-912MK2 features eight module slots that allow you to easily customize your system by choosing from over fifty TOA plug-in modules with an extensive array of features and connector types. You can increase the input capacity by connecting a second mixer or mixer/amplifier to the rear-panel Bridge In/Out jack.

Outputs include transformer isolated 25V and 70V plus a direct 8 Ohm low-impedance mode if non-transformer operation is required. Multiple paging priorities are easily configured using optional mute-type modules activated by external switch-closure or mute-send modules. Pre-Out/Power-In jacks allow connection of external signal processing between the mixer and amplifier sections. Other features include protection circuitry, auxiliary output, bass/treble controls and remote master volume terminals. The 900 Series Mixer/Amplifiers are UL and cUL Listed and carry a five year warranty.

TOA A-912MK2 Features:

  • Modular Eight Channel Mixer/Amplifiers for paging, background/foreground music distribution and music/messaging-on-hold.
  • Proven TOA Quality and Reliability
  • Engineered for High Performance with wide frequency response, very low noise and distortion, and excellent output regulation.
  • Eight Module Slots accept any combination of TOA plug-in modules for custom system configurations.
  • 25 V, 70 V and 8 Ohm Transformer-Isolated Speaker Outputs with screw terminal connector and protective cover plate
  • Direct Low-Impedance Output Mode bypasses output transformer.
  • Dual Mute Bus permits multiple levels of paging priority using optional mute-type modules.
  • External Mute Terminals for activating mute function with external switch closure.
  • Remote Master Volume Terminals for control with an external 10 kOhm linear-taper potentiometer.
  • Individual Channel and Master Volume Controls.
  • Bass/Treble Tone Controls with tone defeat switch.
  • Low Cut Switch to limit low frequency response.
  • Auxiliary Output for connecting an external mixer or recording device.
  • Insert Jacks for connecting external signal processing.
  • Bridging Input/Output for input expansion or recording device.
  • Normal, Clip, Power, Protect, and Signal Indicators provide unit status.
  • Rear Panel AC Convenience Outlet for powering external equipment
  • Turn-On Delay disconnects output during power-up.
  • Over-current and Thermal Protection Circuitry prevents potential damage from overload, short-circuit and overheating.
  • Volume Control Security Knobs Included (4)
  • Optional Rack-Mount Kit, MB-25B
  • UL / cUL Listed
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Out Module
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