Upgrade from HK 3475

[khanmadari]

Fellow members

I am planning to upgrade from old HK 3475 stereo reciever (powering b&w 685). Source is OPPO 980H (Cant afford CD player right now)

Shortlisted Amps (budget of abt 30k)

RA-04
NAD 26BEE
Marantz PM 703

Will appreciate your views on above combinations, planning to buy in about months time.

Regards
Raj