Accuphase amplifier choice

@lalitk +1 "Measurements are valuable, but they don’t yet explain everything we hear or perceive.” 

yep, standard measurements, w/ typical low grade test equipment, noisy manufacturing floor env., and “managers” pushing to increase productivity at any cost, including quality impact, are indeed inferior to our hearing, - correct! 

I have decades long experience in circuit design, including burn-in, and also, I helped many well known musicians to figure out what they were complaining about sound, by identifying problem, replicating “sensitive” usage condition on the bench and fixing problem/s. 

A Very Happy New Year to you as well @westcoastaudiophile

pl. have a sense of humor! sorry to hear you took my joke too seriously! 

How was I supposed to know if this was humor or you really meant it? But nice joke 😆

@ arafiq

I  am in agreement with your characterization of Class A sound being a long time Pure Class A amp owner (Sugden Saphirre). I think the difference in the wattage between a/b and A is current. There is more current or torque with a Pure Class A amp, whereas A/B designs are more equivalent to HP. 

To anyone, particularly the OP, applying the same thought process of choosing an A'/B amp to choosing a Pure Class A design, you'd be doing yourself a disservice. I have NEVER (and I've owned Wilsons) had any issues driving speakers with Class A amps, especially an Accuphase Class A design. You will get more sparkle, more juiciness, and low end grunt from a Class A amp that you will never get tired of. 

I have about 175 hours in the amplifier and it sounds a completely different amplifier than what I heard in the first couple of days.

The kind of control it has over my speakers still amazes me. The bass is super taut. Example is Boz Scaggs’s song Thanks To You. I used to be impressed by the bass that the Parasound presented. But compared to the Accuphase, I now realize how boomy the Parasound sounded in that section. There is so much definition and truthfulness in the Accuphase presentation - including the bass and drum “thwacks”. Another song I used to turn down at the final 2 minutes was the Beatle’s I Want You (She’s So Heavy). The music sounded “too much” and a bit shrill. No turning down business with the Accuphase. There is some “finesse“ that must be experienced that cannot be described. 
The sound stage was wide with the Parasound; but with the Accuphase it is ultra wide. The soundstage layering is something I had not experienced before. 
I am planning on upgrading the power cable now. Suggestions welcome.

@milpai 

I get exactly what you’re hearing and you summed it up nicely. The Accuphase doesn’t just control the speakers, it disciplines them, IME. That taut, truthful bass, once you hear that kind of finesse and layering, the “ultra-wide” soundstage is easily discernible. 

As far as power cords, I highly recommend 聖HIJIRI SM2R-L "SOUND MATTER" Power Cord. For context, I am using a full of 聖HIJIRI cables in my system. The SM2R-L will get you very close to flagship “TAKUMI” Maestro Power Cord at lower cost. These cords pairs beautifully with Accuphase, like two-peas-in-a-pod kind of synergy.