Yes, I would agree that the source is where I would direct my attention first.
One A'goner recommended the DEQX. Another option would be the DSPeaker Dual Core 2.0. Got a Golden Ear award in TAS, and Kal Rubinson also thought highly of it in Stereophile. The DSP improvement of your bass could lessen some of your need for room treatment (if they turn out to not pass the WAF test). You also get balance control, an EQ, time delay and a number of other features that let you fine tune your sound. These are available at online outlets with solid return policies like Tweek Geek if there is not a dealer in your area. It has been fabulous in my system, and I am using both with digital and analog (!) inputs. Did not expect it to be as transparent as it is with my turntable's analog input.
As for power conditioning, I find this to be very system dependent as well dependent on the specific power problems you may have. Very important to audition in your own system here (and try any conditioner with amps plugged into it, vs into the wall to see if there are any dynamics being restricted). My apt's power is poor enough that I needed a conditioner I could plug my amps into (so I could sleep well at night). The Running Springs Haley and the Equitech 2Q are the two best power conditioners that I have had in my system. But in all things power conditioning, YMMV.
One A'goner recommended the DEQX. Another option would be the DSPeaker Dual Core 2.0. Got a Golden Ear award in TAS, and Kal Rubinson also thought highly of it in Stereophile. The DSP improvement of your bass could lessen some of your need for room treatment (if they turn out to not pass the WAF test). You also get balance control, an EQ, time delay and a number of other features that let you fine tune your sound. These are available at online outlets with solid return policies like Tweek Geek if there is not a dealer in your area. It has been fabulous in my system, and I am using both with digital and analog (!) inputs. Did not expect it to be as transparent as it is with my turntable's analog input.
As for power conditioning, I find this to be very system dependent as well dependent on the specific power problems you may have. Very important to audition in your own system here (and try any conditioner with amps plugged into it, vs into the wall to see if there are any dynamics being restricted). My apt's power is poor enough that I needed a conditioner I could plug my amps into (so I could sleep well at night). The Running Springs Haley and the Equitech 2Q are the two best power conditioners that I have had in my system. But in all things power conditioning, YMMV.