BT-01
Bluetooth® Module
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.
Functional & Interface Accessories
B-01F
Balanced Line Input
B-01S
Line Input Module
B-11S
Line Input Module
B-21S
Bridging Transform Module
B-41S
Bridging Transform Module
E-03R
Controller Module
L-01F
Balanced Line Matching Input
L-01S
Line Input Module
L-11S
Line Input Module
L-41S
Line Input Module
M-01F
Mic Preamplifier Module
M-01M
Mic Preamplifier Module
M-01P
Mic Preamplifier Module
M-01S
Microphone Input Module
M-11S
Mic Preamplifier Module
M-21S
Mic Preamplifier Module
M-41S
Microphone Module
M-61S
Microphone Input Module
ML-11T
900 Series Plug-in Module
NM-01-AM
Noise Masking Module
S-01S
Sine Wave Test Tone Generator Module
S-02S
Buzzer/Yelp Tone Generator Module
S-04S
Switch-Selectable Tone Generator Module
SP-11N
SIP Module
T-01S
Line Output Module
T-02S
Line In/Out Preamp Module
T-12S
Line Input with MOH Output Module
U-01F
Unbalanced Line Input
U-01P
Unbalanced Line Input
U-01R
Unbalanced Line Input
U-01S
Line Input Module
U-03R
AUX Module
U-03S
AUX Module
U-11R
Unbalanced Line Input with Mute-Receive
U-11S
Line Input Module
U-12S
Line Input Module
U-13R
AUX Module
U-13S
AUX Module
U-14R
Input Priority Module
U-21S
Unbalanced Line Input with Remote Volume Control
U-43R
AUX Module
U-43S
AUX Module
U-61S
Line Input Module
V-01S
VCA Module
Supported Products
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