W Audio PSR-8A, User Manual, Page: 4 / 12

page 4 Operation Manual
INTRODUCTION
Powered Speaker System
Thank you for choosing active
sound reinforcement speakers.
ThePSR-8A is an active two-way loud-
speaker capable of extremely high sound
pressure levels, and designed to give you
the best performance of any loudspeaker
in its class and price range.
Our design goal was to build a sound re-
inforcement speaker with:
1.High precision, high output, and accu-
rate playback.
2.Very wide, smooth dispersion of mid and
high frequencies.
3.Ergonomically correct physical design
for easy transport and set up.
Through the combined resources of our
top-notch mechanical and analog enginee-
rs, we were able to achieve our design go-
als in every
spect. The result is a sound
reinforcement system equally at home in
a concert setting, in the studio,
in the cinema, or in a home theater.
re
PSR-8A,Our exclusive design uses low
negative feedback, yet allows the amplifie-
rs to maintain low distortion and stability
and to quickly recover when driven into cli-
pping.
The amplifiers include the followingfeat-
ures:
The low-frequency amplifier produces
up to 200 watts peak(100 continuous)
before clipping.
The high-frequency amplifier produces
up to 100 watts peak (50 continuous)
before clipping.
Each amplifier has its own compressor
circuit that acts when the input signal
is large enough to cause clipping, disto-
rtion and excessive voice coil heat. The
compressor will automatically decrease
the input signal to a safe level. The
compressor in the low-frepuency amp
works independently from that in the
high-frequency amp.
The low-frequency amp uses servo feed-
back loop which senses the current flo-
wing in the woofer coil. This controls the
low-frequency response and maintains
low distortion at high output levels.
The low-frequency amplifier also has a
seeping filter. This will automatically
move the low cut-off frequency up or
down depending on the amplifier output.
The Transducers
The PSR-8A active speakers feature a
8-inch high -power low-frequency woofer
and a 1.5-inch aluminium diaphragm highou-
tput precision compression driver. This
high-frequency driver is mounted on an ac-
oustically non-resonant exponential wave-
guide, providing a wide, controlled disper-
sion and precise reproduction of the criti-
cal upper mid-range and high frequencies.
The result is an unbelievably smooth off-
axis response that allows everyone in the
audience to experience the same high-
resolution audio no matter where they are
seated.
Each driver has been specifically desig-
ed by our engineers for optimum perform-
ance in the lightweight high-strength ca-
binet.
W Series Power Amplifiers