I've been reading pages and pages from this forum and I've narrowed it down to the 9090, 9090db, AU-999, G33000, G22000, G9000, G9000DB, QRX 9001, AU-9500 and EIGHT for best sounding Sansui's. I realise a this is purely opinion but I was curious what the most popular amp would be based on sound quality. I'm going to as many garage sales and markets as I can trying to find professional level Sansui but unfortunately there isn't a huge amount here in Australia. I'm currently listening to an AU-4400 and it's the only Sansui I've seen since March. Sounds amazing, I do think I would benefit from some more power since I have modern speakers. Replies would be appreciated!