A-903MK2
The mixer/amplifier shall have eight mixer input ports and shall be capable of operation from a
110/120 V, 50/60 Hz line. The amplifier shall meet the following performance criteria: Power
output shall be 30 W at less than 0.5% THD from 20 to 20k Hz (direct output) or 50 to 20k Hz
(transformer output). Frequency response shall be + 1 dB from 20 to 20k Hz (direct output) or 20
to 15k Hz (transformer output). Load impedance shall be 4, 8, 20.8 (25 V line) or 163.3 (70.7 V
line) ohms. Load voltage shall be 11, 15.5, 25 or 70.7 V. Output noise shall be 90 dB below rated
output when all gain controls are off. Plug-in accessory modules designed for use with the
mixer/power amplifier shall utilize the latest in surface mount component technology and shall
include microphone, line and special function models. Dimensions (W x H x D) shall be 16.5” x
3.9” x 12.5” (420 x 99.1 x 318 mm) and weight shall be 17.2 lbs. (7.8 kg).

The mixer/amplifier shall be TOA model A-903MK2.
The rack-mount bracket shall be TOA model MB-25B.

A-906MK2
The mixer/amplifier shall have eight mixer input ports and shall be capable of operation from a
110/120 V, 50/60 Hz line. The amplifier shall meet the following performance criteria: Power
output shall be 60 W at less than 0.5% THD from 20 to 20k Hz (direct output) or 50 to 20k Hz
(transformer output). Frequency response shall be + 1 dB from 20 to 20k Hz (direct output) or 20
to 15k Hz (transformer output). Load impedance shall be 4, 8, 10.4 (25 V line) or 81.7 (70.7 V
line) ohms. Load voltage shall be 15.5, 21.9, 25 or 70.7 V. Output noise shall be 90 dB below
rated output when all gain controls are off. Plug-in accessory modules designed for use with the
mixer/power amplifier shall utilize the latest in surface mount component technology and shall
include microphone, line and special function models. The mixer/amplifier shall be rack-mounted
using an optional rack-mounting bracket. Dimensions (W x H x D) shall be 16.5” x 3.9” x 14.1”
(420 x 99.1 x 358 mm) and weight shall be 21.2 lbs. (9.6 kg).

The mixer/amplifier shall be TOA model A-906MK2.
The rack-mount bracket shall be TOA model MB-25B.

A-912MK2
The mixer/amplifier shall have eight mixer input ports and shall be capable of operation from a
110/120 V, 50/60 Hz line. The amplifier shall meet the following performance criteria: Power
output shall be 120 W at less than 0.5% THD from 20 to 20k Hz (direct output) or 50 to 20k Hz
(transformer output). Frequency response shall be + 1 dB from 20 to 20k Hz (direct output) or 20
to 15k Hz (transformer output). Load impedance shall be 4, 8, 5.2 (25 V line) or 40.8 (70.7 V line)
ohms. Load voltage shall be 21.9, 31.0, 25 or 70.7 V. Output noise shall be 90 dB below rated
output when all gain controls are off. Plug-in accessory modules designed for use with the
mixer/power amplifier shall utilize the latest in surface mount component technology and shall
include microphone, line and special function models. The mixer/amplifier shall be rack-mounted
using an optional rack-mounting bracket. Dimensions (W x H x D) shall be 16.5” x 3.9” x 14.1”
(420 x 99.1 x 358 mm) and weight shall be 25.1 lbs. (11.4 kg).

The mixer/amplifier shall be TOA model A-912MK2.
The rack-mount bracket shall be TOA model MB-25B.