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Reduce Electrical Noise Coming Through Your USB Connected Computer Speakers
Firestone Audio GreenKey USB Isolator
Firestone Audio GreenKey USB Isolator
Firestone Audio GreenKey USB Isolator
Item# 56239
Free shipping on orders over $175 - See Details


  • Reduce electrical noise substantially from your USB port to your speakers
  • Enhances listening experience for your digital audio library
  • Plug and Play with and Mac, Windows PC or Linux PC

Essential Info

The Firestone Audio GreenKey is a USB Isolator and is designed to solve electrical noise problems coming through a USB connection of a computer that can influence the audio signal. The most important part of digital audio is the clarity of the data travelling along the USB cable. Since the very beginning of PC based audio, the noise from the power lines has effected the data integrity creating problems with the timing of the digital signal, known as jitter. With the growing popularity of digital music, jitter has become the primary source of "digititus" and the GreenKey will help reduce that interference substantially by isolating the power from the connection to the Digital to Analog Converter (DAC) that are found in all computers. The GreenKey works Plug and Play with any Mac, Windows PC and Linux PC.

There are two other Firestone Audio Keys in the series and each does something different. The BlackKey is a USB headphone DAC. The RedKey is Firestone Audio's most compact 24Bit USB to S/PDIF Converter.

What's Included

  • 1x - GreenKey USB Isolator
  • 1x - Owner's Manual
  • 1x - Warranty Card

  • Specifications

    ManufacturerFirestone Audio
    Manufacturer Product No.GreenKey
    Support96 kHz / 24 bit
    ConnectivityUSB (A type plug) to USB (A type receptacle)
    USB InterfaceA type to USB interface
    System RequirementsWindows XP / Vista / 7, MAC OSX and Linux
    Important notes:
    Only defective exchanges for identical item within 30 days of purchase. No other returns allowed on this item. For defective returns after 30 days, please contact the manufacturer.
    Manufacturer contact information: HDL Distributing, Tel: (888) 204-5768 Ext


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