Ashly FET-I500C Specification Sheet

PowerAmplifiers
model FET-I500M
model FET-I500C
FET.1sOOM
FET-1500C
shly, the first professional
audio manufacturer to release
a MOS-FET power amplifier,
is proud to introduce the next
generation, the FET-I500
Series. During its first
decade, our original FET
Series became a standard for
applications requiring the utmost in sonic
excellence and extreme reliability. We
now improve upon that reputation by
offering more models with better specifi-
cations than ever before.
The FET-1500 series is offered in two
variations:
The FET-1500M features LED meters
and balanced XLR or 1/4" inputs. This
design is intended for demanding sound
reinforcement, broadcast facilities, re-
cording studios, or any application where
visual monitoring and interfacing with bal-
anced equipment is essential.
The FET-1500G is designed to meet the
needs of professional industrial installa-
tions such as theater, public address and
stadium use. In these situations meters
and XLR inputs are not typically required,
so the FET-1500C is supplied without
meters and utilizes barrier strip and 1/4"
inputs. This amplifier provides all of the
same performance benefits as the
FET-1500M at a lower cost.
The FET-1500 series represents Ashly's
ongoing dedication to extending the
boundaries of technology. Simple, stable
circuitry produces better sound. Ashly
MOS-FET amplifiers use a complemen-
tary, all-discrete design. The driver is pure
class-A and, because it has only two
stages, requires little compensation allow-
ing 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 transconduc-
tance curves and run at a relatively high
idle current, again preventing crossover
notch distortion. They require no dissipa-
tion-limiting protective circuitry and pro-
vide virtually infinite power gain, keeping
load reflections from the driver stage.
This promotes stability and low distortion
when driving reactive loads like loud-
speakers.
Special attention is paid to overload
performance; when an Ashly amp is over-
driven, it will clip cleanly with a slightly
rounded edge totally free from spikes and
glitches. Total immunity to power supply
variations insures that transient distor-
tions are never generated on program
material with wide dynamic range.
The result: powerful and quick ampli-
fiers that deliver unrestrained, uncolored
sound quality with remarkable accuracy.
Each Ashly power amplifier, like all Ashly
products, is now fully covered by our
exclusive five-year worry-free warranty.