The McCormack unit is a good unit and can or will be upgraded with modifications by Steve McCormack.
As for other units, Edge electronics has a preamp model with analog inputs, I believe it is the Signature One model.
Conrad Johnson has an multichannel tubed analog unit, the MET1 also.
As for other units, Edge electronics has a preamp model with analog inputs, I believe it is the Signature One model.
Conrad Johnson has an multichannel tubed analog unit, the MET1 also.