Hey Poots,
If you haven't done it already I recommend you check out head-fi.org, a website dedicated to headphone listening. Very knowledgeable folks over there and I'm sure they could come up with several amps in your range.
I am currently using a grace designs m901 to drive my Senn. 650's and I feel that it compliments the cans quite well. If you're patient you may be able to find a used one in your price range. I've also been very curious about the offerings from Headamp. The gs1 is just slightly over your budget but have gotten some pretty awesome reviews. Rudistor may also have something that would mate well with you 600's.
Do you want to stick with a tube amp? If so maybe the Ray Samuels Raptor would interest you or maybe a used Audiovalve if you can find one.
With sooo many headphone specific amps out there it may take you a while to find one to replace your Earmax but you have a budget that almost assures that you'll be able to top it. Good luck on your hunt.
Aloha,
Dave
If you haven't done it already I recommend you check out head-fi.org, a website dedicated to headphone listening. Very knowledgeable folks over there and I'm sure they could come up with several amps in your range.
I am currently using a grace designs m901 to drive my Senn. 650's and I feel that it compliments the cans quite well. If you're patient you may be able to find a used one in your price range. I've also been very curious about the offerings from Headamp. The gs1 is just slightly over your budget but have gotten some pretty awesome reviews. Rudistor may also have something that would mate well with you 600's.
Do you want to stick with a tube amp? If so maybe the Ray Samuels Raptor would interest you or maybe a used Audiovalve if you can find one.
With sooo many headphone specific amps out there it may take you a while to find one to replace your Earmax but you have a budget that almost assures that you'll be able to top it. Good luck on your hunt.
Aloha,
Dave