Why would people put a bass-killing material in a subwoofer?
Anyway, I got an EVO. Wasn't overly impressed. I mean, for the price, ok, kind of impressed. Took out the big felt. Then put on the velours. Better. Kind of boomy and bloaty for velours though. Did some pad rolling, put on some airier velours... now we're onto something. The lower end is probably down about 5db from the stock velours, but the sound is more open. I think EVO is just a pad (and maybe foam) change away from being really great. I wonder if poking some holes into the underside pleather of the stock velours would help make them airier.
The EVO has plenty of detail, it's just hiding behind the bass.
And now I want to try more Superluxes. ...Even if I expect the 668b to be grainy and boring and have recessed mids and peaky highs.
I've had an interest in the 681 and 681b for a while, but it's hard to figure out the size of their soundstage since some people say it's bigger than EVO and some say smaller than EVO.
Tyll's review of the 681 and 668b confuses me. "The HD 688B has a warm tilt to it and to my ears was a significant improvement over the HD 681, which thinner sounding in comparison." Isn't the 668b the cold and thinner sounding of the two?
Because the EVO has too much bass so you can stuff cotton into the cup to make it less boomby.