For anyone that needs to connect equipment with unbalanced line level outputs to balanced line level inputs, with the specific aim of avoiding ground loops, the infamous, unique and utterly bespoke 'SOS specification' pseudo-balanced cable design is now available in ready-made form.
Hugh Robjohns and Martin Walker have been describing the DIY construction of this cable to SOS forum users for years as a very effective way of solving the perennial ground loop problem when connecting unbalanced devices like synthesisers and outboard equipment.
Made exclusively for SOS by Pirahna, using quality cable and Neutrik connectors, this extremely useful problem-solving cable is available from the SOS shop at the extremely reasonable price of £16.99.
The pseudo-balanced cable is 3 metres long, with an unbalanced quarter-inch TS plug at one end and a 3-pin male XLR at the other:
http://www.soundonsound.com/shop/Product.php?ProdID=424
We may well make unbalanced TS to balanced TRS if there is sufficient demand, so please let us know!
hugh
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Technical Editor, Sound On Sound
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