NAD D 3020 or Marantz PM6005 or harman kardon hk3770 ??

[superlapin]

comparably priced what is the most efficient ?

 

[Zax89swe]

I think the harman is most powerful and looks real good but the marantz will probebly sound little more refined and I guess it will survive many years to come (high quality and no display). I will actually buy the harman hk3770 soon myself with some jbl speakers it will be interesting.

 

[the record spot]

I'd have the HK at the drop of a hat. Had their HK6850 integrated for a while and it was a fabulous amp. No issues with refinement, I think it could be a very impressive performer. Real world power too.