You've got some great recommendations. If you're looking for $600 look at used goods and listen carefully to the posts here. As for my recommendations (I've got a 302B modded by Underwood HiFi) I would look at getting a bargain on the speaks and spend some money on tube rolling (assuming you don't want to send the amp out for modding right away). For me the biggest changes came when I rolled in a quad of Svetlana EL34s but then when I took out the 12AT7s and put in some NOS Mullard CV4024's and WOW how the soundstage opened up. Still looking for rolling in some different 12AX7s or equivalent. The Sylvanias I put it compressed the sound stage a bit and darkened things down in the amp. As for speaks: I currently driving B&W Matrix 805's without difficulty (not the most efficient speaker in the world) but I am replacing them with a pair of JMR Trentes. The smartest thing you can do is AUDITION speaks before your plunge. Even if it is off of a "similar" amp (meaning at least TUBE vs SS) listening is the only way to go. Likely you won't get an in-home demo of the speaks you want. But listen somewhere nonetheless.
Enjoy, the 302B is a relatively silent gem in the price range (IMHO).
F7
Enjoy, the 302B is a relatively silent gem in the price range (IMHO).
F7