A-903MK2
8-Channel Mixer Power Amplifier
A-903MK2
The A-903MK2 Mixer Power Amplifier controls and mixes up to eight independent input signals. The Mixer Power Amplifier delivers up to 30 watts of output power. Optional plug-in modules are available for use with mixer power amplifier to provide versatility for a wide range of operating applications.
Type
8-channel mixer power amplifier
Power Source
AC mains, 120 V, 60 Hz
Power Consumption
60 W
Output Power
30 W RMS
Power Bandwidth
(D) 20 to 20,000 Hz, 0.5% THD, (T) 50 to 20,000 Hz, 0.5% THD
Frequency Response
(D) 20 to 20,000 Hz, ±1 dB
(T) 20 to 15,000 Hz, ±1 dB, (T) 20 to 20,000 Hz, +1 dB, -3 dB
(T) 20 to 15,000 Hz, ±1 dB, (T) 20 to 20,000 Hz, +1 dB, -3 dB
Total Harmonic Distortion
0.02% at 1 kHz, rated output
Input
Eight Input Ports : Each port accepts any input modules.
One Bridging Input/Output
One Bridging Input/Output
Input Sensitivity/Impedance
Input Port #1 to #8 : 100 mV/10 kΩ
Bridging Input/Output : 100 mV/3.3 kΩ
Bridging Input/Output : 100 mV/3.3 kΩ
Preamp OUT / Power Amp IN
1000 mV into 600 Ω/1000 mV, 10 kΩ
Outputs (T)=Transformer, (D)=Direct
Main (T) : 4 Ω, 25 and 70 volts, balanced, Main (D) : 8 Ω, unbalanced
Aux : 10 kΩ, 1 V
Aux : 10 kΩ, 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
(T) Less than 1.0 dB, no load to full load
Signal to Noise Ratio
Master volume min : 90 dB
Master volume max : 77 dB
Power amplifier only : 105 dB
Master volume max : 77 dB
Power amplifier only : 105 dB
Tone Control
Bass : ±10 dB at 100 Hz, Treble : ±10 dB at 10 kHz
Control
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)
1 Treble control 1 Power ON/OFF switch 1 Tone defeat switch
1 Low-Cut switch (60 Hz, 6 dB/octave)
Indicator
1 Power LED, 1 Protect LED, 1 Signal LED, 1 Normal LED, 1 Peak LED
Protection
Self-protection, with AC fuse (inside)
Connector
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
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
Operating Temperature
-10 °C to +60°C (12 °F to 140 °F)
Finish
Black
Dimensions
420(16.54") x 99.1(3.90") x 318(12.52") mm
Weight
7.8 kg (17.20 lb.)
Included Accessories
Volume control cover (YA-920)……4
Optional Accessories
Rack mouting bracket (MB-25B)
Please download Datasheet to access full specifications.
Optional Accessory
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A-903MK2
