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A few pictures of my amplifier project. The first one uses a modified Yuan Jing Audio Texas Instruments TPA3116 amplifier board with upgraded capacitors and inductors combined with a Yuan Jing Audio 6N3/6Z4 valve pre-amp using Russian valves, Meanwell power supplies, Raspberry Pi Zero with IQudIO DAC Zero, Alps Blue Velvet potentiometer, hi-gain WiFi dongle all fitted in an Audiophonics (France) case running Picoreplayer.
All my music is ripped in FLAC on a Synology NAS and played through Fostex FE126 horn speakers which I built.
The second amp is pretty much identical but only running ( at the moment...) a standard YJ TPA3116 board and a Raspberry Pi B+ and an IQaudIO Pi-DAC+ as there was a bit more room, again running Picoreplayer.