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RDL AV-HK1 Stereo Audio Isolation Transformer

Model: RDL AV-HK1

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About: RDL AV-HK1 Stereo Audio Isolation Transformer

The AV-HK1 is a stereo transformer isolation module for use with unbalanced, high impedance audio inputs. Input and output connections are provided on gold-plated phono jacks. The AV-HK1 is supplied with two adapter cables to facilitate connecting with products that use mini-plugs and jacks.

The shield connection of each INPUT jack is electrically isolated from the case and from the output ground. The shield connection of each OUTPUT jack is connected to the case shield. The user audio source, such as a computer, CD player, cassette player or other consumer audio product, connects to the AV-HK1 INPUT. The OUTPUT should be connected to the input of the grounded amplifier or mixer in the audio system.

Input and output jacks are oriented left (L) and right (R) when the user is facing each end panel. The correct channel orientation is indicated on the front panel of the module.

The AV-HK1 is a rugged product designed for portable use. For fixed installations, a mounting bracket is included. Many consumer audio inputs and outputs use stereo mini-plugs and jacks. The AV-HK1 includes two adapter cables to interface with these products. The cable kits are also available separately from RDL in the event a cable becomes worn or lost.

Model AV-AC2 Cable Kit (included with AV-HK1), Includes: 1 each Dual Phono to Stereo Mini-plug; Length: 8 in. (20 cm) + connectors 1 each Dual Phono to Stereo Mini-jack; Length: 8 in. (20 cm) + connectors


  • Ground Isolation in Unbalanced Line
  • Ground-Loop Elimination
  • Unbalanced Stereo Galvanic Isolation
  • Isolation in Rugged Field Case
  • Portable or Permanent Isolation Module


UPC: 813721013569 is a Canadian authorized RDL Radio Design Labs retailer.

Reviews: RDL AV-HK1 Stereo Audio Isolation Transformer

There are currently no product reviews.

Warranty: RDL AV-HK1 Stereo Audio Isolation Transformer Warranty:

30 Days

Manufacturer's Warranty:

Radio Design Labs, Inc., also referred to as RDL®, warrants to the Purchaser that products manufactured by RDL are free from defects in material and workmanship. This warranty applies to the period of three years from the date of shipment, except for component parts or products purchased from other sources and supplied by RDL. Such component parts or products bear only the warranty of the manufacturer thereof in effect at the time of shipment to the Purchaser.