NPAudio - Astell & Kern SP2000 4.4mm Pentaconn + unlocked Android modification
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Astell & Kern SP2000 balanced Pentaconn 4.4mm modification.
The single ended 3.5mm socket has been removed and a 4.4mm balanced pentaconn socket installed.
Neotech 7N OCC wire used for Pentaconn socket.
Balanced mode is permanently enabled and both 4.4mm or 2.5mm can be used.
A custom made carbon fibre bezel (allows wifi/bluetooth through the same as stock)
Android is unlocked to allow almost any application to be installed.