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Specifications – TOA Electronics A-903MK2 User Manual

Page 10

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Specifications

Type

Output Power

Power Band Width

Frequency Response

Total Hamonic Distortion

Inputs

Input Sensitivity/Impedance

Preamp OUT/Power Amp IN

Outputs (T)=Transformer

(D)=Direct

Output Regulation (1 kHz)

Signal to Noise Ratio
(Band Pass 20 ~20,000 Hz)

Tone Defeat SW ON

Tone Controls

Controls

Indicators

Protection

Connectors

Power Consumption

Temperature Range

Dimensions (W) x (H) x (D)

Weight

Color

Standard Accessories

Other Features

A-903MK2

A-906MK2

A-912MK2

8-channel mixer power amplifier

30W RMS

60W RMS

120WRMS

(D) 20 ~20,000 Hz, 0.5% THD

(T) 50 ~20,000 Hz, 0.5% THD

(D) 20 ~20,000 Hz, ± 1 dB
(T) 20 ~15,000 Hz, ± 1 dB

(T) 20 ~20,000 Hz, +1 dB, -3 dB

0.02% at 1 kHz, rated output

Eight Input Ports : Each port accepts any input module.
One Bridging Input/Output

Input Port #1 to #8 : 100 mV/10k ohms
Bridging Input/Output: 100 mV/3.3k ohms

1000 mV into 600 ohms/1000 mV, 10k ohms

Main (T): 4 ohms, 25

& 70 volts, balanced

Main (D): 8 ohms,

unbalanced

Aux : 10k ohms, 1V

Main (T) : 8 ohms, 25 & 70 volts, balanced
Main (D) : 4 ohms, unbalanced ,

Aux : 10k ohms, 1V

(D) Less than 0.5 dB, no load to full load
(T) Less than 1.0 dB, no load to full load

Master volume min : 90 dB
Master volume max : 77 dB
Power amplifier only : 105 dB

Bass : ± 10 dB at 100 Hz, Treble : ± 10 dB at 10 kHz

8 Input gain controls

1 Master gain control

1 Bass tone control

1 Treble control

1 Power ON/OFF switch

1 Tone defeat switch

1 Low-Cut switch (60 Hz, 6 dB/octave)

1 Power LED, 1 Protect LED, 1 Signal LED, 1 Normal LED, 1 Peak LED

Self-protection, with AC fuse (inside)

Input No.1 to No.8
Bridging, Mixer preamp. output

Power amp. input, Aux output

Output
Mute, Remote VR
AC power cord/plug
AC outlet

Card-edge connector

RCA phono jack

Screw-terminal strip
Screw-terminal strip
SJT, 3-prong type
3-pin grounding type

60 W

-10 °C ~ +60 "C [12°F~140°F]

100W

180W

420 x 99.1 x 318 mm

[16.5 X 3 . 9 X 12.5 in.]

7.8 kg [17.2 Ib.]

420 x 99.1 x 358 mm

9.6kg [21.2lb.]

[16.5 X 3 . 9 X 14.1 in.]

11. 4 kg [25.1 Ib.]

Black

4 Volume control covers (YA-920)

Output disconnected for approx. 5 seconds after switching power on.

* Specifications are subject to change without notice.

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