Yes. I think I already shared this to you when I first published the URL of those amps you are now describing/sharing to other pinoydvd members sa YAMAHA thread.
The A-10II which employed FET components sounds big at it looks. very crisp highs on my 8.3, very brute bass, and like in every instrument sound - there seems to be a background of pure silence. I mean - parang individualized detail ang bawat sound. No hum and no hiss and pure silence when there is no passage of signal.
60wpc sa 8ohms, 80wpc on my 8.3 (6ohms). gets hot at 9 oclock but already sounds loud. If i switched separate, the sound is lower (in volume) dahil bypass na niya ang pre-amp (as if I inputted my source to MAIN-IN jack sa likod).
It is currently my music amp sa haybol ko. will not buy for now sa pier because A-10II is so good, unless I can see the model that I am waiting for (he he he). the XIIII kung lalabas man siya.
Only 200 A-10II were produced in japan, and was a sought after amp that time. Thanks for John5479 for a good lead to understand japongo. This gave me a lot of time to waste to understand fully my amp and its history.
Siyangapala, the behemoth XI is out in pier when I bought the A-10II. the fastest, sweet-sounding amp that ever came out of Japan - so they say, selling 7,500. So fast to its disadvantage, that it will oscillate at the drop of a hat - so they say again. The trick? power it on with headphone or speaker connected, or else, you will have a pop corn transistor inside the amp. he he he