Jeff Rowland Model 10 Amplifier.

 

The Jeff Rowland Model 10 uses 6 LM3886 per channel. The power supply is seperated in another unit.

 

 

Jeff Rowland Concentra/Concentra II Integrated Amplifier.

 

The Concentra also uses 6 LM3886 per channel:

 

Jensen audio transformer is used at the input.

A copper bar is used to clamp the 3886s to the case/heatsink.