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PSU Pre 2016

HP Pre 2016 – DAC-preamplifier with headphone amplifier

by nihtila February 12, 2017

written by nihtila

H-DAC and Addon H-PreAmp encased and used along with PSU Pre 2016 external power supply
Very high performance DAC-preamplifier with headphone amplifier
Compact and simplified design yet extensive list of features
- Coaxial, optical, and USB inputs
- DAC filter response switch
- Balanced (XLR) and unbalanced (RCA) outputs, approximately 2 Vrms output level

February 12, 2017 0 comment

PSU Pre 2016 – External power supply for DAC-preamplifier

by nihtila February 5, 2017

written by nihtila

Dual Trafo Board and SmartPSU3 modules
Two 3-channel power outputs for DAC-preamplifiers, total current capability being approximately:
- +14 V, 250 mA
- -14 V, 250 mA
- +7 V, 500 mA
Over-current, under-voltage, and over-temperature protection provided by SmartPSU3
- Error codes blinked by the front LED

This is the device where Dual Trafo Board and SmartPSU3 were originally designed for – external power supply that is simple yet provides some protection in case something goes wrong in the target device. Its current output capabilities are somewhat limited but enough for small DAC and preamplifier. It was designed for HP Pre 2016 although headphone output power may be somewhat restricted with this power supply.

February 5, 2017 0 comment