| Rumble from my OB sub
Since the driver (and problem) is close to IB, I figured I'd post here:
I have an Exodus Audio 15" driver that was a closeout, supposedly good for OB/IB use. 27mm Xmax, great power handling.
Right now the VC's are in parallel for 4 Ohm load and driven by an NHT 400W amp (Class G or H I think, digital rail switching, AB output stage). The driver has no baffle now and is just sitting on the floor with some pillows holding it upright.
the bass is fantastic, except when it gets really low and the woofer bottoms out. Apparently the excursion really jumps at about 18 Hz.
So now I'm in the market for a new sub amp with a rumble filter, but cannot seem to find anything. Any advice here? I'd rather not build my own or use a passive one, but I definitely need something around 10 to 14 Hz to prevent this. It sounds awful and it may be hurting the driver.
Thanks,
Anthony
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