Reference Mono power amplifiers from Goldmund. With the Alize 5 converters onboard. These amps are extremely stable and sound very holographic and fluent.
Besides the regular balanced and single-ended inputs these amps also have a digital input, so if you have a digital source with a variable digital output you can put together a “minimal” Reference level audiophile system.
These amps have an adjustable input sensitivity, XLR and RCA inputs. Newprice Europe: 143.640 euro, USA: 163.060 USD (both pricelists are available), now 22.500 euro for the pair.