Quote:
SteveCallas wrote:
 If you want to go LLT and do it right, I'd sell those drivers and get a couple higher excursion ones better suited to the task at hand. I know TC Sounds ships to your neck of the woods - one or two TC 2000 15" SVCs in a LLT would probably be all you could handle. |
Okay. Thanks, Steve.
I presume the Xmax is just too small to make the exercise worthwhile? New drivers are out of the question particularly if I have to build a huge box to house them.
This means I'm really going to have to do something serious about my IB.
The BFD isn't the whole answer because I've tried hundreds of different filter combinations, both boost and cut. I need so much cut at 40Hz (-12dB) that I lose overall output.
If I went crazy with the ganged filter boosting (2 x + 10dB @ 20Hz) I could actually make the sub sound hot. Normally I can't make the sub hot which means the dialogue is too loud on films to get the same effect as the SVS.
It's as if I have a high pass fixed filter at 40Hz. Nobody else complains of lack of output low down from a 4 x 15" IB so it must be something about my particular setup.
I have a couple of new ideas to try before I start changing the array into a manifold (or splitting into two widely spaced manifolds).
I can check for a high pass filter somewhere in my system using the SVS in place of the IB array.
I can test the SVS right in front of the array to check for a null situation relative to the listening position.
Those contemplating an IB for themselves shouldn't worry. If you use long throw drivers of proven quality you should be delighted. All those happy IB owners here and in The IB Cult can't be wrong.
I still have my doubts about my AE IB15s. Getting the cones moving is still proving difficult even on sinewaves at 10Hz.
Just thinking aloud as usual...