Originally Posted by carp
I think I understand what you are trying to accomplish - you like exaggerated boosted bass below 60 hz ish - nothing wrong with that. Yeah, the 212's (or probably any of the SEOS DIY speakers) will have no problem being crossed at 60hz with no stress even at crazy volumes.
However, maybe there would be a cheaper solution. If you had a minidsp or sms-1 you could cross over at 80hz or even 100hz and just pull down the bass in those higher frequencies so that you don't get that boomy sound from the sub that you don't like. Then you wouldn't be stressing your speakers and you'd still get that boosted exaggerated lower bass that you like. Could that be a possibility? I'm not trying to talk you out of buying speakers but if you really like how your current speakers sound and the only issue is they can't be cranked up down to 60hz maybe my idea would work?
Had thought about that, but I start to localize my sub on some stuff now at 80hz, and that may be because of the boosting I'm doing...or it may be because of my room..... I really don't want to take the sub up much higher to compensate for inadequate mains. Plus, at some volume levels, there is compression and distortion from my mains even in the midrange frequencies -- while they still sound tolerable, there are certainly still songs that I want to push a bit harder, and can't. End of day, I need new mains, lol. It's just finding ones that work for me in a budget and package both my wife and I can swallow.
If I still can't accomplish what I want, I may look into the sms-1 or minidsp or some solution -- but I have this...OCD...about me when inserting unnecessary A-D/D-A steps in my chain. I suppose for bass frequencies it'd be very much less obvious, so I'm less opposed there, and even in general the range where those steps (HF) could even theoretically degrade (if at all) the signal I probably can't even hear any more, lol. But, still fitting yet another piece of equipment into my chain is less than the most desirable, for me. I'd like to just get the x-over and room EQ right, and then be able to set the gain on my sub for my nominal case (tv/movie viewing) and when I listen to music that I want a nice boosted bottom end (like, when I'm treating my house like a nightclub, lol) I just have to reach for the Denon remote and crank up the sub channel level. That'd be ideal.
Of course, in my competition car, I had a few extra steps to enter "that mode" where the bass blew my socks off. Disengage both the L/R channel 1/3rd octave EQ's (which had the effect of making the horns slice off my face) crank the x-over to the sub from 40hz to 60hz, then boost the gain on the sub channel and lower the gain on the high x-over channel to assist the horns ripping my face off. I knew the system curves for flat were way out of whack, but for that music I just cared less about overall SQ, and more about getting a back massage while grooving out driving, lol. Course, it really got excessive when it was loud enough that my glasses would bounce around on my nose and my vision would blur....but...hey, lol. At least now I don't have to worry much about frequencies above probably 10kHz, lol.Edited by DreamWarrior - 4/19/13 at 10:17am