TOA A-903MK2 UL 900 Series Mixer Amplifier, 30W
Brand New
Manufacturer warranty Description
A-903MK2 UL Includes Only:
- Toa Electronics A-903MK2 30W 8-Channel Modular Mixer/Amplifier
- 4 Volume Control Security Knobs
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.The A-903MK2 (30 W) Modular Mixer/Amplifiers are engineered for high performance with wide frequency response, very low noise and distortion, and excellent output regulation.
High Performance Modular Mixer/Amplifiers are 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 (A-903MK2: 4 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.
Technical details
- Inputs Eight Input Ports : Each port accepts any input modules. One Bridging Input/Output
- Option Rack mouting bracket (MB-25B)
- Weight 7.8 kg (17.20 lb.)
- Connectors Input No.1 to No.8 : Card-edge connector Bridging, Mixer preamp. output, Power amp. input, Aux output : RCA phono jack Output : Screw-terminal strip Mute, Remote VR : Screw-terminal strip AC outlet : 3-pin grounding type AC power cord/plug : SJT, 3-prong type
- Frequency Response (D) 20 - 20,000 Hz, +/-1 dB (T) 20 - 15,000 Hz, +/-1 dB, (T) 20 - 20,000 Hz, +1 dB, -3 dB
- Accessories Volume control cover (YA-920)......4
- Type 8-channel mixer power amplifier
- Finish Black
- Power Consumption 60 W
- Protection Self-protection, with AC fuse (inside)
- Output Power 30 W RMS
- Power Output (W) 30
- Temperature Range -10°C - +60°C (12°F - 140°F)
- Power Requirement AC mains, 120 V, 60 Hz
- Controls 8 Input gain control 1 Master gain control 1 Bass control 1 Treble control 1 Power ON/OFF switch 1 Tone defeat switch 1 Low-Cut switch (60 Hz, 6 dB/octave)
- Indicators 1 Power LED, 1 Protect LED, 1 Signal LED, 1 Normal LED, 1 Peak LED
- Tone Controls Bass : +/-10 dB at 100 Hz, Treble : +/-10 dB at 10 kHz
- T.H.D 0.02% at 1 kHz, Rated Output
- Power Band Width (D) 20 - 20,000 Hz, 0.5% THD, (T) 50 - 20,000 Hz, 0.5% THD
- Input Sensitivity /Impedance Input Port #1 to #8 : 100 mV/10 k Ohm Bridging Input/Output : 100 mV/3.3 k Ohm
- Outputs(T)=Transformer (D)=Direct Main (T) : 4 Ohm , 25 and 70 volts, balanced, Main (D) : 8 Ohm , unbalanced Aux : 10 k Ohm , 1 V
- Output Regulation(1kHz) (D) Less than 0.5 dB, no load to full load (T) Less than 1.0 dB, no load to full load
- Dimensions(WxHxD) 420(16.54") x 99.1(3.90") x 318(12.52") mm
- Preamp OUT /Power Amp IN 1000 mV into 600 Ohm /1000 mV, 10 k Ohm
- S/N Ratio(Band Pass 20 - 20,000 Hz) Tone defeat switch on Master volume min : 90 dB Master volume max : 77 dB Power amplifier only : 105 dB
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