Jeff Rowland Design Group Model 7 Power Amplifier

I've had the Series II incarnation and the latest version (transimpedance) for several years.

The Model 7 is unbelievably good. Unbelievably well built. It is also virtually unllftable at 50+kg each monoblock and is recommended for people who live in burglary prone neighbourhoods. No one is going to run off with them.

I am a former designer of amplification equipment, designed a hybrid trnsistor array back in the 1970s for IBM.