I have been a quad owner for over 20 years and I now own the 988's.Even if I win the lottery today,Quads will always be the one and only reference for me.I have used many different tube amps,including single-ended and Otl's but I have found that the KARAN solid state electronics from Yugoslavia works best for me(tube sweetness,grain free,with lots of controll)and I dont have to worry about playing with tubes.Your Quicksilvers are good amps.I would get rid of the power-plant.I use the Sound Application line conditioner plugged into a 20 amp line or you could use the Shunyata Hydra.Keep in mind Quads dont play very very loud,and in a room thats not too big I dont hear any problems.I also use a pair of Rega Vulcan subwoofers with my Quads and I have my speakers mounted on Sound Anchor stands 12 inches off the floor.The sound really open up because the Quads are much more relaxed with the subs.Stay in touch.
