Jax,
Killing the nodes bewteen 50hz and 150hz makes a HUGE difference IME. Getting flat in-room response in this range is really worth some effort and -IME- it will take some effort. I use bassbusters for the octave above 80hz - which works very well - and active PEQ below. In addition to much improved impact, weight, and "punch", the midrange sounds cleaner. Really flat response in this region also allows a more seamless integration of mains and subs - if you're crossing this high. My rule of thumb, cross where it's flat. The bass will seem to be a natural part of a seamless whole - it won't "stick out" at all. At least, not to me.
Below app 50hz, the whole excersize becomes a lot more subjective - IMHO. Again, weight is impacted as is, to my surprise, soundstaging. I'd heard people make this claim before, but I was doubtful - it wasn't intuitive. As it turns out, getting it right down low allows deep bass notes to "bloom" and expand in a way that feels natural and seems to define a larger space. To my ear, there's a decently broad band around truly "flat" response that achieves this result. I chose to extend flat in-room response to 25hz because it measured well and sounded great. Other folk's MMV.
Marty
BTW I currently use a pair of 12" Rythmik subs which require much less EQ than the 8" Velodynes.
Killing the nodes bewteen 50hz and 150hz makes a HUGE difference IME. Getting flat in-room response in this range is really worth some effort and -IME- it will take some effort. I use bassbusters for the octave above 80hz - which works very well - and active PEQ below. In addition to much improved impact, weight, and "punch", the midrange sounds cleaner. Really flat response in this region also allows a more seamless integration of mains and subs - if you're crossing this high. My rule of thumb, cross where it's flat. The bass will seem to be a natural part of a seamless whole - it won't "stick out" at all. At least, not to me.
Below app 50hz, the whole excersize becomes a lot more subjective - IMHO. Again, weight is impacted as is, to my surprise, soundstaging. I'd heard people make this claim before, but I was doubtful - it wasn't intuitive. As it turns out, getting it right down low allows deep bass notes to "bloom" and expand in a way that feels natural and seems to define a larger space. To my ear, there's a decently broad band around truly "flat" response that achieves this result. I chose to extend flat in-room response to 25hz because it measured well and sounded great. Other folk's MMV.
Marty
BTW I currently use a pair of 12" Rythmik subs which require much less EQ than the 8" Velodynes.