Mono block Preamp


Are there any mono block preamps?  Why do companies offer expensive mono block power amps but not mono block preamps?   Wouldn’t the same advantages be gained at the preamp level as well?

lewl28

PassLab

Gryphon

Constellation Audio

Audio GD  

‘The list goes on. Same advantages?  Yes. I know your next inquiry.  Mono phono stage?  Why not?

 

 

Mono pres were a forerunner to Differentially/true balanced preamps/amps, where both channels share nothing in come, aside from the power supply

Mark Levinson made the first one back around 1980. It was the ML6 and sold for $6K the pair. Outrageous price then, now pocket change for today’s moneyphiles (who dominate the High End).