Accuphase Integrated Amp - E600 or E470


I am building a second system around Harbeth or ATC speaker and decided on Accuphase for integrated amp. Between the Accuphase E600 (class A 30 watts) and E470 (class A/B 180 watts) integrated amps I am hoping someone here has compared. I heard the E470 driving ATC speakers and liked it but have no chance to audition an E600. If the E600 sonics is only mildly superior to the E470 I would rather get the latter to avoid class A heat plus it is significantly less $$. I am in Jakarta Indonesia where it is always hot and I prefer not have a heater in the small 1BR apartment I live. But if the sonics gap is huge enough I am prepared to step up. Music I listen is varied - pop, jazz, light rock, R&B and occasionally classical orchestra.
noelpastor
Thanks that helps. If the difference in sound quality between the two is indeed slight I will likely pick the E470 due to its less heat and price. I have heard good things of the L590AX if I am not mistaken this is Class A so you may be making more of a sideways move with the E470. In a week or two I may be able to directly compare the E600 and E470 using ATC SCM19 speakers at the dealer this would be interesting.
You are correct, the Luxman is a Class A amp with 30 Watt output. I will soon see if its a sideways move.  I just ordered an E-470 to see if they make an appreciable difference with my B&W 803 speakers.
I would be interested to hear your thoughts after you compare the two. The Accuphase has a sonic character of silky highs so it may  synergize w/ the B&W revealing tweater. 
I,too, am interested in Accuphase- possibly an integrated. I look forward in reading about your thoughts/impressions.  Happy Listening!