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Multi-Way Conventional loudspeakers with crossovers

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Old 8th April 2006, 04:04 PM   #1
Khron is offline Khron  Romania
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Default Seas L15 simulations

Greetings

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
Chris
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Old 10th April 2006, 02:14 PM   #2
Khron is offline Khron  Romania
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Noone?
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Old 10th April 2006, 03:08 PM   #3
Puggie is offline Puggie  United Kingdom
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I'd have a look at this

http://www.zaphaudio.com/audio-speaker12.html
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Old 11th April 2006, 04:38 AM   #4
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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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