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RDL EZ-HK1 Stereo Audio Hum Killer

Model: RDL EZ-HK1

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  • Usually Ships in 2-3 Days 
  • Not yet reviewed

About: RDL EZ-HK1 Stereo Audio Hum Killer

The EZ‑HK1 is a superior-quality stereo audio transformer isolation module for use with unbalanced, high impedance audio inputs. Input and output connections are provided on gold-plated RCA 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 through a rear-panel ground-lift switch.

The EZ-HK1 eliminates hum due to ground loops when it is installed between an unbalanced audio source, such as a computer, CD player, cassette player or other consumer audio product, and the input of a grounded amplifier in an audio system.


  • Audio Ground-Loop Hum Elimination
  • Unbalanced Stereo Galvanic Isolation
  • Inputs and Outputs on RCA and Mini Jacks
  • Switch-Selectable Ground Lift for Output Jacks
  • Portable Use or Permanent Installation


  • Gold-Plated RCA Connectors
  • Conversion between Mini-jack and RCA formats
  • Ground-Lift Switch


UPC: 813721010643 is a Canadian authorized RDL Radio Design Labs retailer.

Reviews: RDL EZ-HK1 Stereo Audio Hum Killer

There are currently no product reviews.

Warranty: RDL EZ-HK1 Stereo Audio Hum Killer 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.