Jensen Transformers SUB-2XX Stereo Subwoofer Audio Isolator Hum/Noise Eliminator

Description

Jensen Transformers SUB-2XX
ISO-MAX Stereo Balanced Audio Input Isolator
Jensen Transformers SUB-2XX ISO-MAX Stereo Audio Input Isolator
Jensen Transformers SUB-2XX Stereo Balanced Audio Input Isolator typically offers common mode rejection of 105 dB 90 dB common mode isolation at 60 Hz while also helping to eliminate RF interference from sources like television and radio stations.
The SUB-2XX features extended low frequency response, right down to 1 Hz.  Being a passive device, it requires no power supply, and thus cannot itself add any any noise to the connected audio system.  Distortion at 20 Hz is ultra-low at less than 0.01 percent.  The SUB-2XX can eliminate noise inference, such as 60 cycle hum, and also  higher frequency noises, such as buzzes, clicks and pops from motors, light dimmers, and RF.
Both the sources and loads may be either balanced or unbalanced for maximum interconnection flexibility.  The SUB-2XX is housed is a sturdy NEMA metal enclosure, measuring 7.0" W x 3.5" D x 1.6" H., including the flanges.  The flanges have mounting holes, which are handy for permanent installations.
FYI: For best results, the cables on the input side of the SUB-2XX should be under 200 meters (600 feet) in length.  The output cables should be no longer than 1 meter (3.3 feet).
The XLR to XLR configuration shown here is the standard connector configuration, but XLR/BNC, XLR/TRS, XLR/RCA, TRS/TRS, RCA/RCA, RCA/XLR-M configurations are also available for a small additional charge.  You may also choose the "None" option if you prefer to use the back-panel barrier strip for either (or both) of the connections.  The 10 different options are show at the lower-right.
If you're not that this is the best model for your application, please check out our
Jensen Transformers Application Guide
.
Please do not confuse the SUB-2XX with similar (but inferior) products.  Jensen Transformers' ISO-MAX Audiophile-Quality stereo audio isolators provide the ultimate signal interface solutions.  They solve the fundamental problems associated with ground loops, without degrading signal quality.
With inferior products coming from all over the world, we think it is a genuine treasure to find a company like Jensen Transformers, actually designing and manufacturing some of the finest products in the world, right here in the USA, and we are proud to be able to offer their products. The SUB-2XX 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 in even the best-planned audio systems.
When devices in the same system are powered by separate power sources, that almost always causes a difference in ground potential between the two pieces of equipment. It can be because one run is longer than the other. or because one of the circuits is loaded more heavily 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.
The Solution
Elegant in its simplicity, the Jensen Transformers SUB-2XX is simply inserted into the signal path, immediately resulting in the effects of the ground loop becoming a non-issue. Problem solved. There are not too many things that can provide so much improvement in an audio system with so little effort.
Don't Forget the Cables!
Good cables are very important in the fight against hum and noise. You will need at least one short patch cable in order to insert the SUB-2XX into your signal path, and you may want to consider upgrading your existing cable(s) as well. The SUB-2XX does not include any cables, but if you need them, we have some very high-performance XLR cables available. Please
click here
to see them!
Jensen Transformers' Description
SUB-2XX Two channel sub-woofer isolator
The Iso•Max SUB-2XX is a two channel low-frequency isolator created specifically for sub-woofers to eliminate hum and buzz caused by ground loops in balanced audio systems.
Eliminates hum and buzz caused by ground loops
Extended low frequency response down to 1 Hz
Less than 0.01% distortion at 20 Hz
Plug and play easy to use, no power required
The design begins with a rugged flanged enclosure that comes standard with gold plated XLRs and a removable screw-down barrier strip for easy installation in a NEMA enclosure. Plug and play easy to use, this passive interface does not require any power to work. Inside are two specially designed Jensen audio transformers with extended subsonic response to deliver powerful and articulated bass for maximum impact. Even when being subjected to extremes, the SUB-2XX is able to gracefully handle low frequencies down to 20 Hz with less than 0.01% distortion and less than 1 dB of phase shift. To further optimize the performance, a bottom mounted 8 position ‘set & forget’ dip switch enables the user to configure the SUB-2XX grounding scheme as needed. And with better than 100 dB of common mode noise rejection, you can enjoy the full performance of your audio system without noise.
Simply connect the SUB-2XX between the source and the input destination to eliminate ground loops, electromagnetic interference (EMI) and RFI problems. The SUB-2XX will quietly go to work without introducing distortion, phase shift or artifact of any kind. These combined features make the Iso•Max SUB-2XX ideal for balanced home theater systems, professional studios, PA systems and the most demanding post production facilities.
Data Sheet (PDF)
This picture offers a peek inside, as well as the layout of the back panel.  Please notice that the internals may not be identical to the model pictured, although the back panels are the same.
Subwoofers have become an essential part of most touring PA systems.  In this example, the SUB-2XX is being used to isolate the subwoofer amplifier racks from the rest of the audio system.
In this studio connection example, the SUB-2XX is connected between the balanced output of a playback system and the balanced stereo inputs on a powered subwoofer.  The signal is faithfully delivered, without smearing or choking, and of course the inherent isolation ensures that there will be no ground loops.
Here is the datasheet, in PDF format.
The SUB-2XX comes standard with XLR inputs and outputs (as shown elsewhere on this page), but all of the connector options shown above are also available by special order.  Click the image above to get a closer look at all 10 configuration options.
Why Cable Solutions?
Cable Solutions is an Authorized Jensen Transformers Distributor, so our customers are ensured full warranty protection and technical support.  (Jensen Transformers is obligated to provide neither warranty nor technical support for products purchased from unauthorized resellers!)
We stock this item locally so that it will be 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.
If you have had enough of outsourced support or worse yet, companies that do not even publish a phone number or a functional email address, we think you will be absolutely delighted that you found our company. We know how important it is to be able to get help when you need it. That's why we have people, right here in Texas, ready to respond to your email or answer your phone call. If English is your language of choice, you will have the simple pleasure of communicating with people whose first language is English. Granted, if you call on the phone, you may detect more than a trace of a Texas accent, but that is to be expected when dealing with a family-owned business run by native Texans. We sincerely hope that you will find our heritage of courtesy, honesty, and an ethical way of doing business to be a refreshing experience.
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.
Shipping/Handling
USA Customers
We are offering free shipping via USPS Priority Mail, an air service that provides one to three day delivery to USA addresses.
If you need even faster delivery, we also offer Express Mail, which provides overnight delivery to most (but not all) USA addresses.
If you are more comfortable with private carriers, we are also offering UPS.
Please refer to the Shipping and handling section to see the exact services, rates and transit times.
International Customers
This item will ship via eBay GSP (Global Shipping Program). This is a premium shipping service where your total cost, including import duties and taxes, are known and paid during checkout. eBay assumes full responsibility for the safe delivery of your shipment.
Please refer to the Shipping and handling section for calculated rates and transit times to your country.
Warranty
Manufacturer's Warranty Statement
For a period of 1 YEAR after purchase, Jensen Transformers, Inc. will, free of charge, repair or replace any part of an ISOMAX® product that fails due to defective materials or workmanship.
For a period of 20 YEARS after purchase, Jensen Transformers, Inc. will, free of charge, repair or replace any Jensen OEM transformer or any Jensen transformer contained in an ISOMAX® product that fails due to defective materials or workmanship.
Both limited warranties are subject to the following limitations:
1. Defects that are, in the sole judgment of Jensen, the result of accident, misuse, abuse, neglect, mishandling, misapplication, faulty installation, unauthorized repair, modification, or acts of God will not be covered by this warranty.
2. In the absence of proof of date of purchase, the date of manufacture (as determined from lot numbers of internal parts and the records of Jensen Transformers, Inc.) shall be used in its place.
3. There are no express warranties except as listed above.
4. JENSEN TRANSFORMERS, INC. SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THIS PRODUCT OR ARISING OUT OF THE BREACH OF THIS WARRANTY. Duration of implied warranties, if any, is limited to 12 months.
If a problem develops with this product during the warranty period, call or write us before attempting any repair. We can help you identify specific problems, and possibly solve the problem, before the unit is returned to us for repair or replacement. In any case, DO NOT RETURN THE UNIT WITHOUT AUTHORIZATION and instructions from us. Jensen cannot be responsible for damage due to shipping or improper packaging.
Warranty Assistance
USA Customers
Jensen Transformers typically does a very fine job of handling warranty issues, but if you prefer to deal with Cable Solutions, we will be pleased to handle the matter for you.
International Customers
Please notice that most of our electronic equipment carries a USA warranty, so all international warranty issues must be handled by Cable Solutions.  This means that you must return the item to Cable Solutions for all warranty repair or replacement issues. You will be responsible for all shipping/handling expenses.
All Customers
Return Merchandise Authorization (RMA) is required for all returns handled by Cable Solutions. Please contact us for authorization and instructions.
Return Policy
eBay-Managed Returns
Unless otherwise noted, all returns are governed by the terms of the eBay-managed return process, as described in eBay's portion of this item page.
The following information applies only to items that are not governed by the eBay-managed return process:
Defective Merchandise
Defective merchandise will be repaired or replaced as described above.
Non-defective Merchandise
All non-defective returns are subject to restocking fees.  Here are some examples of the fees:
Un-opened merchandise
All un-opened returns are subject to a 10% (minimum) restocking fee.
Opened merchandise
B-Stock or "open box" electronic devices - 15% (minimum)
New electronic devices - 20% (minimum)
Manufactured cables that are packaged in a reusable container - 15% (minimum)
Manufactured cables that are packaged in a non-reusable container - 20% (minimum)
Shipping/handling fees are not refundable and you will be responsible for all shipping/handling expenses related to the return.  In the case of items with "free shipping", customary shipping/handling fees will be added to your restocking fees.
In order to qualify for the rates shown above, we must receive your return within the first 14 days following the day you receive your order.  In cases where the item is returned incomplete, or in less than perfect condition, we will evaluate the restocking fees on a case by case basis.
Return Merchandise Authorization (RMA) is required for all returns.  Please contact us for authorization and instructions.
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