Subwoofer damping
For example, a variovent with a high-end TC Sounds woofer, like the ones used in JL Audio subs, would probably work very well. Yes but even the LMS-Ultra 18 with 4 inch Voice Coil and 30 mm Xmax is suited to a 6.5 cu Ft sealed box - this is one of the best subwoofer drivers in the world - so why the 20+ cu ft that Wavetrader has? (Surely they are folded horns/bass bins?) BTW - I heard TC Sounds is bankrupt does this mean JL audio will not be able to use their drivers anymore? |
If this is the case, then you have a band-pass enclosure. And if it uses Scan-Speak drivers . . . the vast majority of which have a pretty low Qes . . . that means that this is probably a sixth-order bandpass enclosure. Also, a 6th-order bandpass box, with two 16" drivers, tuned to low frequencies, could easily be as freaking huge as what you have. Kirkus - you are thinking the same way I am...surely this has got to be bandpass... |
Ok let me point out that...and I am sorry I didn't earlier that these drivers are mounted on a thick plate that secures to the bottom of the box. They fire downward and are completely visible if you had the box on it's side. It's been a long time since I actually had it apart...but I seem to remember 2 chambers and corner bracing and so on. The box is made of HDF I recall and weighs about 200 lbs. The plate with drivers is probably 100 lbs+. If I was really industrius I'd pull it apart and check but it is a bear to handle. Roger |
Wavetrader, I was thinking of "Skanning", which I believe was a fore-runner of Scan-Speak (which I'm not sure was in existence back then). Does that name ring a bell? If so, those are probably fairly high Qts woofers (like some of the older Dynaudio drivers), and the large aperiodic box size makes more sense. Shadorne, back in the early 90's when those drivers were made nothing even remotely approaching the TC Sounds woofer was in production, and probably not even on the drawing board. In those days, 10 mm linear peak-to-peak was considered high excursion. Duke |
