Harman Kardon HK990 Question


I pulled this amp out of storage the other day and hooked it up.  For the 1st time since I bought it, it occurred to me there is no way to bypass the high and low pass filter section when utilizing the subwoofer outputs. When the sub outputs are turned on, the setup process forces you to select a crossover frequency, even if you want to manage your bass via other options.  If any of you guys are still using this amp, how do you address this issue?  I guess I could just hook the subwoofers up to the preamp outputs.  My subs don't have high level inputs. 

danoroo

@millercarbon , really like the system on your profile, meticulous cable management is inspiring.

I think Don Sachs used to refurb/rebuild HK amps so you might reach out to him for ideas.  He obviously knows what he’s doing. 

kota1, thanks. If you like the way it was then, wait till you see the way it is now!

@millercarbon , obviously you are on the path of audio  system "kaizen". If you knew back then what you know now, how would you go about putting together a system? Would you do anything different? Thanks

 

@millercarbon That was not a rub on my part.

BTW there are a ton of great tube integrated amplifiers that kill the Raven line. I own several myself.  New class D hybrid integrated are also making waves, Rouge, Canor just to name a couple.

The landscape is changing.

Canor AI 2.10 - Integrated Hybrid Amplifier of class-D - CANOR (canor-audio.com)

Amplifiers, CD players, Phono preamplifiers - High end tube audio - CANOR (canor-audio.com)