ASHLY
Power Amplifiers
model FET-2000M
model FET-2000C
U.L. Listed
Five-Year Worry-
Free Warranty
MOS-FET
Output Devices
Ciass-A Fuii
Compiementary
Front End
Moduiar Construction
FET-2000C
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,
A
_________
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 FET2000C 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
our original FET Series
became a standard for applica-
tions requiring the utmost in
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.
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
Specifications
Architect’s Specification
Ashly Model 2000M
The power amplifier, being of two channels, shall deliver a
minimum power of 250 waits per channei into 8 ohm loads.
400 watts per channei Into 4 ohm ioads. or 600 watts per
channel Into 2 ohm loads with both channels operating.
Wlicn switched into bridged mono mode, it shall deliver at
least 500 watts into a 16 ohm load. 800 watts into an 8
ohm load, or 1200 walls into a 4 ohm load. Tlie amplifier
shall be Immune to damage from shorted, open, or mis
matched loads. The amplifier shall have a gain of 29dB t
.5dB per channel and an input sensitivity of 1.7 Volts ± 2%
for full rated output. Frequency response shall be lOMz to
20kllK ± .5clB. It shall be stable into any load including
pure capacilors and inductors. Hum and noise shall be at
least 1 lOdB below full output and SMPTE intermodulation
distortion shall be less than .01% at full output. The ampli
fier shall have rear panel switching for mono and bridging
modes and rear mounted level controls, Tlic Inputs shiUl be
balanced bri<lging type wllli male and female XLR type con
nectors as well as 1/4" phone jacks. A three-color LED type
indicator shall be employed to show the power level of each
channel and self contained forced air cooling shall be used.
The power output devices shall be of the Lateral MOS-FETl'
type. The amplifier shall weigh 551b. net and mount In a
standard 19 Inch rack using three spaces (5.25" highj. The
power requirement shall be 110-125VAC. 50-60Hz.
Tile power amplifier shall be an Ashly FET-2000M.
Ashly Model 2000C
Tile power amplifier, being of two channels, shall deliver a
minimum power of 250 watts per channel Into 8 ohm loads.
400 watts per channel into 4 ohm loads, or 600 walls per
channel into 2 ohm loads with both channels operating.
When swiichcd into bridged mono mode, it shall deliver at
least 500 watts Into a 16 ohm load. 800 watts Into an 8
ohm load, or 1200 watts into a 4 ohm load. The amplifier
shall be immune to damage from shorted, open, or mlsmalched loads. The amplifier shall have a gain of 29dD ±
,5dB per channel and an input sensllhily of 1.7 Volls ± 2%
for full rated output. Frequency response shall be lOHz to
20kHz ± ,5dB. It shall be stable into any load including
pure capacitors and inductors. Hum and noise shall be al
least 1 lOdB below full output and SMPl'E Intermodulation
distorlion shall be less Ilian .01% at lull output. The ampli
fier shall have rear panel switching for mono and bridging
modes and rear mounted level controls. The inputs shall
utilize 1/4" phone Jacks as well as barrier/termlnal Inpiil
strips. Self contained forced air cooling shall be used. The
power output devices shall be of the Lateral MOS-FIiTr type.
The amplifier shall weigh 551b. net and mount in a stan
dard 19 inch rack using three spaces (5.25" high}. The
power requirement shall be 110-125VAC. 50-60Hz.
The power amplifier shall be an Ashly FET-2000C,
• „■' J-:
s
I
Ashly Audio Inc.
To provide maximum flexibility, Ashly offers two variations in our FET Power Amplifiers:
The FET-2000M (top) features XLR and 1/4" inputs.
The FET-2000C (bottom) utilizes Barrier Strips and 1/4" inputs.
Since 1972
© 1989 Ashly Audio
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