I have a friend who owns the Premier 8's in a very well tuned set-up.Rushton's comments are quite accurate regarding the merits of this really fine product.However my friend is using his CJ's to drive the mid/tweeter panels of his speakers above about 100 hz,so I cannot comment on his lowest frequencies,since he uses solid state Krell stuff for his Lows.The rest of the range is superb with these amps.Every accolade you care to ascribe to the sound.As far as your current speaker set-up is concerned,I am intimately familiar with the Eclipse's.I have a friend who owned them for 6-7 years.I currently own a pair of Avalon Ascents,that I drive with a modified Rowland 8t(2 chasis,second houses newer switch mode power supply,formerly battery).Based upon what you claim about your speaker positioning I would have to refer you to the EXCELLENT owners manual that came with these(ECLIPSE AND ASCENT).Here Avalon goes into great detail about optimum speaker placement,stating that you should not have too great a similarity between side and back walls.You are too close to the undesired locations to have optimum bass response.My speakers(That follow the exact same set-up distances as yours, are 8 feet from back walls and 3 1/2 from side walls.My friend's Eclipse's were 3 1/2 feet from side walls and 6 fet from back walls.Since these are sealed boxes with a low "Q" damping of cabinet,the bass can be superb if room loading is utilized properly.Avalon SPECIFICALLY claims that you should NOT have the side and back parameters too similar or you risk lower quality bass performance.Read the book again,or ask Avalon for a copy,if you bought the speakers used,and never got it.It is really an eye opening read,regarding some of the more popular,and actually less accurate designs so in vogue today.I suspect your amp issue will go away when you do so.In either case both the CJ and your current amp will be superb.Good luck.