Ashly FET-2000M - Manual

ASHLY
Power Amplifiers
model FET-2000M
model FET-2000C
FET-2000C
A
shly, the first professional
audio manufacturer to release
a MOS-FET power amplifier, is
proud to introduce the next
generation,
the FET-2000
Series. During its first decade,
our
original FET Series
became a standard for applica-
_________ tions requiring the utmost in
sonic excellence and extreme reliability. We
now improve upon that reputation by offer­
ing more models with better specifications
than ever before.
The FET-2000 series is offered in two vari­
ations:
The FET-2000M features LED meters and
balanced XLR or 1/4" inputs. This design is
intended for demanding sound reinforce­
ment, broadcast facilities, recording studios,
or any application where visual monitoring
and interfacing with balanced equipment is
essential.
The FET-2000C is designed to meet the
needs of professional industrial installations
such as theater, public address and stadium
use. In these situations meters and XLR
inputs are not typically required, so the FET-
2000C is supplied without meters and uti­
lizes barrier strip and 1/4" inputs. This
amplifier provides all of the same perfor­
mance benefits as the FET-2000M at a
lower cost.
The FET-2000 series represents Ashly's
ongoing dedication to extending the bound­
aries of technology. Simple, stable circuitry
produces better sound. Ashly MOS-FET
amplifiers use a complementary, all-discrete
design. The driver is pure class-A and,
because it has only two stages, requires lit­
tle compensation allowing both speed and
linearity with no crossover-notch distortion.
The output stage consists of paralleled
power MOS-FETs for current gain. The
MOS-FETs have smooth transconductance
curves and run at a relatively high idle cur­
rent, again preventing crossover notch dis­
tortion. They require no dissipation-limiting
protective circuitry and provide virtually infi­
nite power gain, keeping load reflections
from the driver stage. This promotes stability
and low distortion when driving reactive
loads like loudspeakers.
Special attention is paid to overload per­
formance; when an Ashly amp is overdriven,
it will clip cleanly with a slightly rounded
edge totally free from spikes and glitches.
Total immunity to power supply variations
insures that transient distortions are never
generated on program material with wide
dynamic range.
The result; powerful and quick amplifiers
that deliver unrestrained, uncolored sound
quality with remarkable accuracy.
To ensure compatibility with every installa­
tion and insure the protection of every user,
Ashly power amplifiers are listed with U.L.
Plus, each is backed by Ashly's exclusive
five-year worry-free warranty.
U.L. Listed
Five-Year Worry-
Free Warranty
MOS-FET
Output Devices
Ciass-A Fuii
Compiementary
Front End
Moduiar Construction
XLR and 1/4" inputs
on "M" Modeis
Barrier Strip and 1/4"
Inputs on "C" Modeis
Stereo, Mono &
Bridging Modes
LED meters on
"M" modeis
Forced
Air Cooling
Perfect Overioad
and Square Wave
Response
Stabie Into Any Load
Self-Protecting Under
Virtuaiiy Aii Conditions