Description
The TX-J3 is a passive unbalanced input transformer that mixes two unbalanced line-level sources into a single balanced mono output. It accepts dual gold-plated RCA phono jacks or a 3.5mm Mini-jack and provides a transformer-balanced output on a detachable terminal block. This module performs conversion without adding gain, preserving the original consumer-level signal.
Inputs are configured so that inserting a Mini-jack disables the RCA inputs, allowing simple switching between source types. The two unbalanced channels are combined and balanced through audio transformers designed to reject induced hum on unbalanced lines. The passive design provides reliable hum cancellation without introducing active circuitry.
Frequency response is 30 Hz to 20 kHz (±1 dB), ensuring transparent reproduction across the audible band. Because the TX-J3 is passive it does not raise the output to a professional +4 dBu line level, so the balanced output follows the consumer input level. For installations requiring a +4 dBu balanced line or extra gain, pair the TX-J3 with RDL’s TX-LC2 line converter.
The balanced output is presented on a front-panel detachable terminal block with +, – and Ground connections suitable for inputs of 10 kΩ or higher. The module interfaces directly with consumer devices and can feed mixers, amplifiers, or line-level inputs when used with appropriate downstream equipment. Its compact footprint makes the TX-J3 easy to integrate into racks, wall boxes, or equipment enclosures.
The TX-J3 is ideal when converting stereo consumer sources such as media players, laptops, or portable audio devices to a summed balanced feed for mixers or amplifiers. It reduces ground-loop hum and simplifies wiring by converting two unbalanced signals into one balanced output. The transformer isolation improves audio quality in broadcast, live sound, and installed AV environments.
Installation is straightforward since the module is passive and requires no power or configuration. Gold-plated connectors and a detachable terminal block ensure robust connections and long-term reliability in professional settings. The TX-J3 provides a low-maintenance, predictable solution for converting unbalanced consumer audio to a balanced line-level output.
Free Ground Shipping
We offer free ground shipping on every purchase of $300 and more for US and US territory. Please choose "Free Ground Shipping (UPS/USPS)" option at checkout.
UPS Ground
UPS provides up-to-date tracking information. Ground service takes anywhere from 2-7 working days for delivery depending on destinations. UPS Ground does not deliver on Saturdays, Sundays or Holidays.
USPS Priority Mail/USPS Express Mail
For all shipments shipped via USPS, we offer 'DELIVERY CONFIRMATION' number with each package. Difference between tracking number provided by UPS vs USPS Delivery Confirmation number is: Delivery Confirmation status is updated when the delivery has been made or when the package has made it through major USPS stations.
Air Shipment
Air shipments, Overnight, 2nd day and 3 day select methods offer guaranteed delivery time for your shipment. If you are in hurry or in need for the items on schedule, select one of these methods. Up-to-date tracking information is provided with each Air Shipment. AVProSupply has the right to choose between Air shipments to meet or reduce delivery time. For guaranteed delivery of multiple items with expedited shipping, please contact our customer service representative for personalized assistance to get your items delivered to you when you need them.
International Customers
We offer shipping via USPS/UPS for our international customers. You can find different shipping options during checkout.
Most items ordered from AVProSupply will be shipped out from our California Warehouse. Will-Calls are only allowed with Appointment Only - Please call Customer Service to set one up between the hours of 9am to 6pm PST.
We Offer A 30-Day Money Back Guarantee:
Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.
Refunds:
Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.
Exchanges:
If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.
No Returns/Exchanges on the following:
- TVs and monitors 20" and larger
- Special Order merchandise
- Any item indicated on the website as non-returnable
For more information see our official Return Policy
