I took a page from electronluv with the mercury vapor rectifiers, and modified the power supply of my Allnic H 3000 phono preamp to use an RCA 83 mercury vapor rectifier. Sublime!
The Sira is hand crafted using point-to-point wiring for its audio and power supply circuitry. Its chassis is constructed from thick brushed stainless steel and solid granadillo wood to provide a strong non-magnetic structure for its circuitry. The result is a superior sounding and elegant looking product.