iBasso has now introduced several new cables to interface with the Toucan balanced amplifier. These are priced at not much more than the cost of a DIY project, and should make it really easy for folks to "test the waters" of balanced headphone listening.
They have developed 2 pre-made pigtail adapters; one matching the Hirose connector to dual 3-pin XLR female connectors and another one matching the Hirose connector to a single 4-pin female XLR. If one already has balanced phones, these new accessories will make them compatible with the balanced Toucan.
For the Sennheiser crowd, they are also offering a stock HD-650 cable that is terminated in a Hirose balanced connector and will likely be offering the same cable terminated in a 4-pin male XLR for those individuals who already have an amp with a balanced 4-pin XLR output. This cable will fit several different models of Sennheiser phones.
The best part of these new accessories is that they make your existing Sennheiser phones truly "Plug and Play" for balanced listening, with no soldering or modification required to your phones or equipment.
Further information can be found here: http://tinyurl.com/23np52p