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Toa A-906MK2 60 Watt, 8 Channel Mixer Amplifier   THE TOA 900 SERIES are widely recognized as the industry standard in installed sound system amplification. 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. High Performance The A-906MK2 (60 W) Modular Mixer/Amplifiers is engineered for high performance with wide frequency response, very low noise and distortion, and excellent output regulation. Modular Design Eight module slots allow you to easily configure custom configurations 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. Versatile Features Outputs include transformer isolated 25 V, 70 V and 8 ohm plus a direct 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.   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 10k ohm 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 Five Year Warranty     Specifications Type 8-channel modular mixer/amplifier Output Power: 60 W RMS Power Bandwidth (D) 20 - 20k Hz, 0.5% THD; (T) 50 - 20k Hz, 0.5% THD Frequency Response (D) 20 - 20k Hz, ±1 dB; (T) 20 - 15k Hz, ±1 dB (T) 20 - 20k Hz, +1 dB / -3 dB Total Harmonic 0.02% at 1k Hz, rated output Distortion Inputs 8 input ports: every port accepts any input module 1 Bridging Input/Output Input Sensitivity Please refer to 900 Series module specifications. & Impedance Bridging Input/Output: 100 mV / 3.3k ohms Pre-amp. Out/ 1 V, 600 ohms / 1 V, 10k ohms Power Amp. In Outputs Main (T): 8 ohms, 25 V & 70 V, balanced (T)=Transformer Main (D): 4 ohms, unbalanced (D)=Direct Aux: 1 V, 10k ohms Output Regulation (D): Less than 0.5 dB, no load to full load (1k Hz) (T): Less than 1.0 dB, no load to full load Dynamic Range Master volume set to min.: 90 dB (Band Pass: 20 - 20k Hz, Master volume set to max.: 77 dB with Tone Controls centered) Power amplifier only: 105 dB Tone Controls Bass: ±10 dB at 100 Hz; Treble: ±10 dB at 10k Hz Indicators Normal, Peak, Power, Protect, and Signal LEDs Protection Self-protection, with internal AC fuse Power Consumption: 100 W Temperature Range 12° F to 140° F (-10° C to +60° C) Color Black Dimensions (W x H x D): 16.5” x 3.9” x 14.1” (420 x 99.1 x 358 mm) Weight (without modules): 1.2 lbs (9.6 kg) Other Features Output connects approx. 5 seconds after switching power on.

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