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Jensen Transformers PO-2XX
ISO-MAX Stereo Audio Line Output Isolator 1 to 1 Ratio (Formerly DM2-2XX)
Jensen Transformers PO-2XX ISO-MAX Stereo Audio Line Output Isolator
1 to 1 Ratio
The Jensen Transformers
PO-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. Gold-contact DIP switches provide maximum
grounding configuration flexibility, solving equipment problems.
Built with 80 percent nickel transformers, the PO-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.
The standard connector configuration is XLR to XLR, but you may also specify any combination of XLR, RCA, 1/4" Phone Jack or BNC connectors. You may also choose the "None" option if you prefer to use the barrier strip alone.
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
- Integral ground option switches solve other equipment problems
If you're not sure which model to choose, please check the Jensen Transformers Application Guide on our website.
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 PO-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 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 PO-2XX is elegant in its simplicity. Simply insert the PO-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.
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 PO-2XX into your signal path, and you may want to consider upgrading your existing cable(s) as well. The PO-2XX does not include any cables, but if you need them, we have some excellent audio interconnect cables available. Please click here to see them!
Jensen Transformers' Description
Jensen Transformers PO-2XX
Stereo Line Output Isolator, 1 to 1 Output Ratio
The Model PO-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
- 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
Here is a peek inside the device.
In this application example, a PO-2XX is connected at the output of a mixer, instantly eliminating hum and buzz caused by ground loops.
Here the PO-2XX is inserted into the signal chain between two consoles, breaking the ground loop and eliminating noise while easily handling huge bass transients without distortion.
Here is the datasheet in PDF format.
Dear eBay customer, eBay has made it impossible to include PDF documents in item descriptions, so if you want to see this one, you will need to refer to our website, eBay has also made it impossible to provide outside links, but we are not hard to find: https://www.ebay.com/usr/cable_solutions_one?
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
Please check the "Shipping and payments" tab to see which of the shipping options below we are offering for this item, including pricing and estimated ETA. Please notice that eBay's estimates are not entirely reliable. If you need a better estimate, please do not hesitate to contact us.
We are offering free shipping via USPS Priority Mail, an air service that provides one to three day delivery to US addresses!
USA Shipping Service Descriptions
USPS Priority Mail
Air service that provides 1 to 3 day delivery to US addresses. It includes basic tracking information as well as Delivery Confirmation. Saturday delivery is included at no additional charge.
USPS Priority Mail Express
Premium air service that provides overnight delivery to most (but not all) US addresses. Better tracking and faster delivery than Priority Mail. Saturday delivery is included at no additional charge.
USPS First Class Mail
Economy service for items weighing less than 13 ounces and valued at less than $200. This service is typically a day slower than priority mail and since scanning is optional, the tracking is of limited value.
Please refer to the Shipping and payments tab to see the actual services, rates, and transit times available for this item.
International Shipping Service Descriptions
Priority Mail Express International (EMS)
Our preferred international shipping method for all international shipments because it offers the best tracking as well as the fastest and most dependable delivery.
Priority Mail International
Available for items under $300 in value. Cost is somewhat lower, although delivery gets less priority than PMEI.
First Class Mail International
Economy service for items weighing less than 4 pounds and valued at under $100. This is the least expensive international shipping option, but the savings comes at the expense of tracking - scanning is not mandatory, so this service does not provide reliable tracking information, and the post office will not trace delayed or lost packages.
eBay GSP (Global Shipping Program)
This is a premium expedited 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.
If you would prefer shipping via mail, and to take responsibility for your own import duties and fees, we sometimes offer similar listings that offer that option (Search for the same item without "GSP" in the title). If you can't find what you need, please don't hesitate to contact us.
Please refer to the Shipping and payments tab to see the actual services, rates, and transit times available for this item.
Keep in mind that eBay's transit time estimates are from the US Postal Service. The total transit time to your address can be affected by circumstances in your own country, such as delays at your local customs office, or cases where no one is available to receive the delivery.
With the exception of eBay GSP, International customers should be prepared to pay import taxes and/or duties at the time of delivery. In NAFTA member countries, customs duties should be discounted for products that are made in the USA, but taxes may still be collected. Please be advised that we declare actual contents, value and country of origin for customs and insurance purposes.
No exceptions please.
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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