I second the dt880 600 ohm too. I liked it better than the hd650 esp. out of a tube amp to cure its lean signature. Although, eventually I preferred a hd580 to either of them.

Quote from: ultrabike on October 08, 2014, 06:37:11 PM

Interesting. Could be wrong, but I thought the Q701 and the K712 where virtually the same headphone.

K712 is virtually the same as K702 anniversary. Those two are tuned warmer than the Q701.

K702 and K701 are virtually the same. Less full than Q701 (which is not really full to start with).

Then comes inconsistencies between samples of the same model...

I compared K702 and K712 recently. K712 retains the K702's resolution and crisp treble but with a very obvious boost on the low end.

My understanding is that the only difference between K702 and the annie is the flat memory foam pads which warm up the sound a little, but that the K712 driver is tuned different and uses angled memory foam pads.

Crack speedball yes.

Bryston BHA-1?  Potential thermal drift and for the money just get a Ragnarok which crushes all things SS.  If you can buy one new for 3 figures then I say we revisit.

Yes to Crack + Speedball. Great amp and fun DIY for a good price.

I feel that's the beauty of it. The upgrades, tweaking, learning, etc. While surpassed in some ways by commercial solutions, Doc Bottlehead deserves mention.