AB International 9620-B Brochure

Model 9620B

Professional Series

The AB International Professional Series
9620B is a two channel stereo amplifier.
This compact (three rack unit) instrument
features individual channel level controls, 11
LED vu display with clip indication, 1/4”
jack inputs (balanced), XLR inputs
(balanced), ground lift switch, and a Stereo /
Parallel / Bridge switch. The 9620B delivers
850 Watts per channel into 8 Ohms, 1500
Watts per channel into 4 Ohms, and 2000
Watts into 2 Ohms 20Hz-20KHz at .1%
distortion.

The 9620B employs only 20dB of negative
feedback to reduce forward transfer
distortion components to minimum levels.
VI energy limiters are incorporated for
short- circuit protection and a thermal sensor

prevents an over-temperature condition.
Other features include dual two speed
temperature actuated DC fans, “
speaker protection circuitry, selectable input
sensitivity, and a fully modular construction
for service accessibility.
The AB International Model 9620B features
the “Logic Operated Gated Output” supply
system. Dual tri-level supplies that gate the
operating voltages around the output
waveform power high current, fully
complimentary output stages. This is used to
control and eliminate unused and inefficient
headroom.

The 9620B operates from l00-240V 50­60Hz AC mains and measures 5 ¼” high
(three rack unit), 19” wide and 16 ½”deep.

Soft Clip”

Type:

Continuous
Power Output
Per Channel
20Hz to 20Khz:

Frequency
Response:
Distortion:

Hum & Noise:

Input Sensitivity:

Input Connectors:

Output Connect:

Control &
Indicators:

Damping Factor:

Two channel amplifier

850w into 8 Ohms
1500w into 4 Ohms
2000w into 2 Ohms
3000w 8 ohms Bridge
4000w 4 ohms Bridge

+/- 0.25dB 20-20kHz
No more than 0.1% THD or
TM 0.01 to rated output.
101 dB below rated output
(unweighted, 20kHz band­width)

1.0V RMS for rated output
(selectable) .775, 1.0, 1.5V
1/4” phone jack (balanced)
XLR (balanced) Neu Combo
XLR Male parallel out.
5-way binding posts
(Speakon Optional)
(Front panel) AC mains
power breaker, power on
LED, level controls, and
11-LED vu displays
(Rear panel) ground lift
switch,
stereo/bridged/parallel switch

1000:1 at 1kHz

Slew Rate:

Crosstalk:
Gain:
Mainframe
Power
Supply:

Turn-On Delay:
Power
Requirements:

Thermal
Protection:

DC Protection:

Heatsink and
Cooling:

Construction:

Dimensions:

Unit Weight:
Shipping Weight:

Closed-loop response
greater than 40V per
microsecond

-80dB
39dB

Toroidal transformer
4EA (26,000uf) capacitors

3 sec., solid-state actuated
AC Mains- 100-240VAC
50/60Hz@32A/16A

Thermal sensor activates
channel shutdown if an
overheating condition exists
DC sensor activates channel
shutdown if DC condition
exists, Soft clip protection

Dual speed fans providing
extra power handling
utilizing massive heatsink
extrusions
14-gauge cold-rolled steel
with
1/4” heavy aluminum front
panel
Slim line 5 1/4” height, 19”
standard rack mount width,

16.5” depth overall (less
handles)
63 lbs (28.18 kg)
69 lbs (30.87 kg)

AMPLIFIED DESIGN INT’L Mfr of AB INTERNATIONAL Products

1830-6 Vernon St., Roseville, CA 95678 Phone [phone]

Fax [phone] * Website http\\www.abamps.com * e-mail [e-mail]

09/02