Welcome to Per-Anders Sjöström's hifi pages - QSX the high performance phono RIAA amplifier Sarek Cactus Kaktus hifi power amplifier loudspeaker opamp operational DAC ADC A/D-converter delta sigma Crystal Semiconductor LT1028 LT1115 OPA134 OPA627 AD8610 AD8620 BUF634 Burr Brown

Welcome to Per-Anders Sjöström's hifi pages.

QSX Mark II - The extreme phono (RIAA) amplifier

The schematic, page 1 and 3, the pre amplifier

This homepage is moved to http://sjostromaudio.com