Here are instructions and manual for our products
DACs and optical converters:
Setting the DAC as the output device (MAC OS X, Windows)
Savitech ASIO driver installation guide
Hifime S2 SPDIF AND USB DAC Manual
Hifime UAE23HD Sabre 9018 Manual
Hifime UAE23 Sabre DAC, U2 and Tiny Manual
Hifime 9018 Manual (OLDER MODEL)
UR23 and S2 SPDIF optical to USB converters
Amplifiers:
Manual for Tripath Amplifiers model T1, T1-M, T2, T3, T3S, T4
Amplifier mounting guide in French by forum user Alkasar
THD Distortion Measurements chart for T2
For UDP320 refer to the product page
USB Isolators
USB Isolator instruction (for full speed model)
USB Isiolator FAQ, troubleshooting and compatibility
Power Supplies