Description
This is a brand new Jensen Transformers ISO-MAX model CI-1RR
Single Channel Audio Input Isolator. This device is designed specifically for use
in home theater and automotive applications. The specially designed
transformer units provide ruler flat frequency response to ensure audiophile
quality sound.
Ground noise rejection is 95 dB at 60 Hz while maintaining a wide bandwidth
of 0.25 Hz to 50 KHz at the -3dB points. The device not only eliminates
hum and buzz, but also enhances audio quality by reducing spectral
contamination due to ultrasonic and RF interference.
The CI-1RR is made in the USA, is backed by the manufacturer's comprehensive
one-year warranty, and has a remarkable 20-year warranty on the transformer
device itself.
Ground Loops?
(or why the best planned systems sometimes
sound bad)
It is a subject that is seldom discussed in manufacturers publications, or
even in magazines of the trade, but ground loops can happen even in the most
carefully planned A/V system. When ground loops happen, the result is
unwanted hum and buzz.
Ground loops are often the result of the fact that in a complex A/V system,
some components may be powered by a different electrical branch circuit than
the rest of the A/V system. The result is that the neutral or groundside
of the two circuits can be at a slightly different potential. It can be
because one of the circuits is loaded more heavily than the other, or because
one run is longer than the other, or any number of other reasons that are beyond
the scope of this article.
Ideally, ground loops would be prevented at the design level, but if you are
working with an existing room, it is not always possible or practical.
Ground loops can occur in mobile installations as well, because all of the
amplifiers in the system have their own internal power supplies, and voltage
drop percentages in a 12-volt system can be even more challenging than in a
home system.
The Solution
The Jensen Transformers CI-1RR is elegant in its simplicity.
Just insert it in the audio line and it immediately provides these
benefits:
-
Eliminates the inherent ground noise coupling
mechanism
-
Common-mode ground noise rejection of 95 dB at
60 Hz
-
Wide bandwidth: -3dB at 0.25 Hz and 25 KHz
-
Handles signals up to 7 volts at 20 Hz or 11 volts at 30 Hz
Immediately, the effects of the ground loop become
a non-issue. Problem solved. There are not too many things that one
can install in an audio system that can do so much with so little effort.
It is a small device, 4.32" long, 2.60" wide, and 1.45" tall, so
it fits just about anywhere.
Why Cable Solutions?
In-stock items are ready for immediate shipment, and no one works
harder than we do to get your order shipped out to you fast! On business
days, orders that are funded by noon will ship the same day. Orders funded
on weekends or holidays will ship the next business day.
Customer service is our first priority. We do our best to help you find
the best solutions for your particular application. We're enthusiasts too,
so we know what it's like to wait for cables and accessories that are needed to
hook up new gear. We also know how important it is to be able to get a
response when you need help, so you'll often find us working long hours in an
effort to get you the answers that you need.
Design excellence, high quality materials, meticulous workmanship, and
superior service...put it all together and you get a superior product.
Don't get stuck with bad advice, poor service, slow shipment or an inferior
product. If you want the best, here it is.
Miscellaneous
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and disclaimer. Thanks for reading all of this!
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