AB Amps 6600A User manual

MODEL 6600A
SIX CHANNEL
AMPLIFIER
The Amplified Design International Professional
Series Model 6600A is a six channel full
featured Amplifier. This compact instrument
(four rack unit) is equipped with three individual
power supplies, six independent balanced and
unbalanced inputs, detent level controls, signal
presence and “Soft Clip” indication, dual
temperature activated fan assist, Stereo/Bridge
switches per each two channels. The 6600A
delivers 400 Watts into 8 Ohms, 600 Watts into
4 Ohms and 750 Watts into 2 Ohms all six
channels driven from 20Hz to 20kHz at less than
.1% distortion (typically 0.01%). Model 6600A
incorporates a three-year, Five Star protection
plan featuring the following unprecedented
circuitry. VI energy limiters are incorporated for
short circuit protection. If an extreme low
impedance exists on any channel, a current
sensing circuit will reduce the output to prevent
amplifier overdrive.
If an abnormally high AC line voltage is present
or an excessive voltage surge appears, the
amplifier will detect the situation and turn itself
off. If an unlikely DC situation occurs, DC
sensing circuits will trigger the amplifier channel
and turn off. Thermal sensors are installed in
each channel to protect against an over
temperature condition. “Soft Clip” circuitry has
been incorporated for added protection to
prevent hard clipping from improper use. A rear
panel selectable 80Hz Linkwitz Riley fourth
order Lo-Pass filter switch has been added to
channel six for subwoofer applications. Other
features included are internal selectable input
sensitivity, ground lift switch and fully modular
design for service accessibility. Remote turn on
is available as an option. The Model 6600A will
operate from 100/240V 50-60Hz AC Mains and
measures 7” high (four rack unit), 19” wide and
16 1/2” deep.

AB MODEL 6600A SPECIFICATIONS
Type:
Continuous
Power Output
Per Channel @
20Hz – 20kHz:
Frequency
Response:
Distortion:
Hum & Noise:
Input
Sensitivity:
Input
Connectors:
Output
Connectors:
Controls &
Indicators
Damping
Factor:
Slew Rate:
Crosstalk:
Six Channel Amplifier
400W @ 8 Ohms
600W @ 4 Ohms
750W @ 2 Ohms
1200W @ 8 Ohms Bridged
1500W @ 4 Ohms Bridged
+/- 0.25dB 20Hz – 20kHz
No more than 0.1%THD or IM,
0.01W to rated output, 20Hz-20kHz
(Typically 0.01%)
101dB below rated output
(unweighted, 20kHz bandwidth)
1.0VRMS for rated output
(selectable - .775V, 1.0V, 1.5V)
¼” Phone Jack (Balanced) XLR
(Balanced)
5-way Binding posts
(Front Panel) Ac mains power
switch (breaker), power on LED,
level controls, signal/clip LED’S,
(Rear Panel) ground lift switch,
stereo/bridge switches per each two
channels, Low Pass Filter switch
(Ch6)
500:1 @ 1kHz
Closed-loop response greater than
40V/us
-80dB
Gain:
Mainframe Power
Supply:
Turn-On Delay:
Power
Requirements:
Thermal
Protection:
DC Protection:
Heatsink and
Cooling:
Construction:
Dimensions:
Unit Weight:
Shipping Weight:
34dB
Toroidal transformer, 3
separate power supplies w/
6ea 15k/uf capacitors
3 seconds
AC Mains 100-240VAC,
(120VAC from factory,
unless otherwise indicated)
50/60Hz, 32A/16A for 2
Ohm, 20A/10A for 4 Ohm
Each channels thermal
sensor activates channel
shutdown if an over-heating
condition exists.
Dc sensor activates channel
shutdown if DC condition
exists.
Dual fan, two speed cooling
utilizing massive heatsink
extrusions.
14-gauge cold-rolled steel
with 3/16” heavy aluminum
front panel
Slim line 7”height, 19”
standard rack mount width,
16 ½” depth overall (less
handles)
62 lbs (28.18kg)
67 lbs (
Amplified Design Int’l (mfr of AB Int’l products) 1830-6 Vernon St. Roseville, CA 95678
Phone [phone] Fax [phone] Web Site: www.abamps.com E-Mail: [e-mail]

6600A Applications
Two Way Stereo
With Two Monitor Mixes

6600A Applications
Six Zone Amplifier
Six Way Monitor Mix