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The Jensen Transformers DM2-2XX Dual Line Output Isolator provides an elegant way to avoid ground loop
problems while driving balanced or unbalanced inputs from either balanced or unbalanced outputs. Built
with 80 percent nickel transformers, the DM2-2XX offers excellent performance when used with the relatively
high output impedances that are common in consumer electronic gear. This ISO-MAX has no input or output
cable length restrictions. In addition, the DM2-2XX's ground option switches solve other equipment
problems.
The DM2-2XX is available with your choice of XLR, RCA, 1/4" Phone Jack or BNC connectors - just choose
the configuration that you prefer below. You may also choose the "None" option if you prefer to use
the barrier strip.
Here are the audiophile-quality specifications:
- Distortion 0.004% typ. at 20 Hz and +4 dBu output level
- Wide bandwidth: !3 dB at 0.10 Hz and 15 MHz
- Handles levels up to +22 dBu at 20 Hz and +26 dBu at 30 Hz
- Excellent time domain performance: DLP 0.3E typ. 20 Hz to 20 kHz
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 audio system.
When devices in the same system are powered by separate power sources, that can cause a difference in
ground potential between the two pieces of equipment. 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, but the result of this difference in ground potential is commonly
referred to as a ground loop.
Mixing balanced equipment with unbalanced equipment by using passive adapters or cables often exasperates
ground loop problems.
The Solution
The Jensen Transformers DM2-2XX is elegant in its simplicity. Simply insert the DM2-2XX anywhere in the
signal path and 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 provide so much improvement with
so little effort.
Jensen Transformers' Description
Stereo Line Output Isolator 1 to 1 Output Ratio
The Model DM2-2XX provides over 100dB of common mode isolation at 60Hz. Transformer isolation
allows any type of output driver to be connected to either balanced or unbalanced inputs without
causing loading or instability problems.
Features:
- Ruler flat frequency response preserves "Audiophile Quality" signals
- High-Grade Nickel-Iron-Molybdenum alloy cores for extremely low distortion
- High quality gold plated connectors for long term reliability DM2-2XX Internal Photo
- Available with a choice of XLR, RCA, 1/4" Phone Jack or BNC connectors
- Unpluggable screw terminal strip for easy "Home" to "Road" changeovers
- Convenient 7.0" W x 3.5" D x 1.6" H. dimensions allow rack tray or rail mounting
- Gold Contact DIP Switches allow for flexibility in grounding configuration
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Additional Information
This item is typically built to order at the time of purchase so you should expect a 5 to 10 business
day lead time (before we ship).
Why Cable Solutions?
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.
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