Gefen TV Auto Volume Stabiliser review

Late-night volume changes can be avoided with this handy home cinema accessory

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  • Compact and easy to use
  • No noticeable change in volume levels
  • Connections
  • Can be bypassed easily if needed


  • HDMI would have been welcome
  • Some music sounds slightly compressed when in use
  • Price

The Gefen TV Auto Volume Stabiliser uses Dolby Volume, which is a technology designed to intelligently 'normalise' loudness to avoid the annoying volume jumps familiar to late-night telly addicts, when broadcasters turn up the sound for adverts.

The tech, which was modelled on psychoacoustic research conducted by Dolby, is integral to recent TVs, AVRs and this Volume Stabiliser.

The device is compact and powered by a 'wall-wart'. It's also very easy to use. Remote control is also possible, courtesy of a simple three-button handset.

Both digital coax and optical and analogue inputs and outputs cater for just about everything. You can also use it to convert between analogue and digital audio, with or without processing.

It works very well indeed, especially with TV sources. No subjective distortion of any significance is added, and quiet details become more apparent at low listening levels because they're boosted by Dolby Volume.

Some sources – eg. classical music, suffer from squashed dynamics, but you can engage the bypass mode if this is found to be too intrusive.

It also doesn't work with 5.1 audio – it's two-channel stereo only.

The addition of HDMI ports would have simplified connection to some applications. Naturally, only the audio would be processed here – any accompanying video would be passed through intact.

It also costs more than many Blu-ray players, largely on account of all the support circuitry that's necessary.

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Tech Specs

Product TypeAudio Adapter
Connector on First EndRCA Stereo Audio, 2 x RCA Female Stereo Audio
Connector on Second EndToslink Female Digital Audio, Female S/PDIF, 1 x Toslink Female Digital Audio, 1 x Female S/PDIF
Brand NameGefen
Height23.5 mm
Width57 mm
Depth45.5 mm
ManufacturerGefen, Inc
Product ModelGTV-AAUD-2-DIGAUD
Product NameGTV-AAUD-2-DIGAUD Analog to Digital Audio Adapter
Manufacturer Part NumberGTV-AAUD-2-DIGAUD
Manufacturer Website Address
Marketing Information

The GefenTV Analog to Digital Audio Adapter converts analog Left/Right RCA-style audio connections to digital S/PDIF or TOSLINK outputs. The unit is compact, easy to install, and operates in a wide variety of operating conditions.

Weight (Approximate)30 g