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Khron 8th April 2006 04:04 PM

Seas L15 simulations

I intend to build myself a pair of small-ish active 2-ways using the Seas L15 mid-bass.

Seeing as WinISD returns some gigantic port dimensions, i decided on trying using these drivers in a sealed enclosure (in simulations).

The frequency response and cone excursion plots look good (up to ~50W), with a Linkwitz Transform (Qtc=.707, Fc=20Hz), and a 4th order L-R highpass (60Hz).

The thing is, i'm taking these results with a bucketload of salt (not just a grain), and i was wondering whether there is someone around here who owns a better simulation software, and is willing to do a couple of simulations for me (ported, and sealed, in the above-mentioned conditions).

Thanks in advance

Khron 10th April 2006 02:14 PM

Noone? :xeye:

Puggie 10th April 2006 03:08 PM

I'd have a look at this ;)

lousymusician 11th April 2006 04:38 AM

2 Attachment(s)
Here's what I get out of WinISD.

Top trace (@ 60 Hz): vented box, 0.322 ft^3, 52 Hz tune, 2 in. vent, 8.22 in long.

Bottom trace: sealed box, 0.157 ft^3.

Middle trace - same sealed box with LT and high pass applied.

In my not-necessarily-expert opinion, the LT is hardly worth the effort. Lots of effort for at best a 3 dB boost. This is too small a driver to push too deep. For a stand alone speaker, the vented box should be pretty good in a small room. The sealed box would be fine with a sub.

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