There will be plenty of reviews of the Billie Amp Mk3, but none like this. In addition to using the Mk3 in a standard system configuration, I will report on using it in my Faux Mono Integrated Amp configuration, in which two stereo integrated amps are used together in a horizontally bi-amped system. Why do … Continue reading Heaven 11 Billie Amp Mk3 tube/class D hybrid integrated amplifier Review