

ISP Technologies presents the latest generation in high performance Noise
Reduction technology, the DECIMATOR™ NOISE REDUCTION SYSTEM.
From the original inventors of the HUSH® noise reduction comes the latest,
most advanced, patent pending, state of the art technology in real time noise
reduction. The Decimator offers a revolutionary breakthrough in Noise Reduction
processing with an unparalleled level of performance. The HUSH system, as well
as all other noise reduction systems suffers from one major problem inherent in
their design: The system cannot be immediately responsive to both very
short-term staccato notes and long slowly decaying signals. The typical downward
expander noise reduction system suffers from a dead zone in the release response
characteristic, which causes a compromise in tracking both fast decaying notes
and long sustained notes.
The Decimator design offers a novel approach to tracking the envelope of the
input signal called Time Vector Processing. Due to this novel approach in
controlling the expander, the Decimator system will instantly respond to short
staccato notes and, at the same time, will provide a very slow ripple free
control of long sustained notes. This means that the Decimator noise reduction
system is the most transparent and highest performance noise reduction system
available. The Decimator Pro Rack uses both Dynamic filtering and low-level
downward expansion. A Time Vector Processing circuit controls the release
response of both the downward expander and dynamic filter.
The input of the Decimator Pro Rack is TRS ¼ inch balanced to eliminate any
common mode noise. Both channels can be used at a –10 or +4dBU reference
level. We have also designed the Decimator Pro Rack using high quality studio
grade voltage controlled amplifiers for both the dynamic filer and downward
expander. This provides dynamic range noise performance of greater than 118db.
This translates into the most transparent noise reduction system you’ve ever
heard.
The Decimator Pro Rack is extremely easy to use; simply inset the Decimator
at the end of your signal chain or, insert the Decimator Pro Rack in the effects
loop of your amplifier to clean up the noise present at the amplifier input as
well as the noise in the amplifiers pre-amp section. Packaged in a single space
19-inch rack, the Decimator Pro Rack offers the highest possible performance in
a single ended noise reduction system, period.
Audition the Decimator today and experience the highest level of performance
available in a noise reduction system. The Decimator Pro Rack is available in
both a Pro Rack G specifically designed for guitar and instrument applications
and a Pro Rack S for Studio and live sound applications.