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Multi-Way Conventional loudspeakers with crossovers

Curved Small Thor Build
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Old 19th January 2008, 01:25 PM   #101
rob3262 is offline rob3262  United States
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Join Date: Jan 2005
Location: southern New Hampshire
Default Thor

Originally posted by Renron

Back to your question, I'm extremely pleased with the sound and feel it is balanced and not lacking in the bass department given the size of the mid-woofers.
Is a sub-woofer needed to fill in the bottom end when enjoying Eric Clapton or critical listening sessions? No.
Is a sub-woofer needed for HT? Absolutely, nothing beats the rumbling/shaking of the couch when the plane/car/explosion reaches it's crescendo.
A quick check with my RS (non calibrated) digital db meter says;
Hz Db
10 63
20 72
30 75
40 73
50 69
60 68
70 68
80 72
90 72
As you can tell the Xover design sucks at lower freq. response.
But...the speaker cabinet design ROCKS! Capable of 75 dbs at 30 Hz! That says a lot about SM and P10s design and their experience in speaker design. Even that I can hear/measure 10hz is a miracle.

Does that answer your question?

Edit: These are premium component Xovers as designed by SEAS
I will be rebuilding the Xovers when I get a few bucks to play with
Yeah, I guess!

Th results of an Active Thor should be interesting, getting away from some of the stock crossover issues. Are you going to build the HT Forum version of the crossover, or just tweek this one?

- Rob
Scientific Principle and Common Sense
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Old 19th January 2008, 04:15 PM   #102
Scottmoose is offline Scottmoose  United Kingdom
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Re your query Rob, it won't make any difference to driver placement. We're only interested in the vertical resonant mode, so providing the CSA of the line remains ~constant, then you can use whatever shape you like. The curved panels should be more effective at supressing unwanted horizontal resonances etc., but won't affect the tuning.
"'That'll do", comes the cry of the perfectionist down the ages.' James May -The Reassembler
www.wodendesign.com Community sites www.frugal-horn.com http://frugal-phile.com/
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Old 20th January 2008, 01:03 AM   #103
Renron is offline Renron  United States
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Location: Sacramento
The HT version
Sorry for being short.
"If it doesn't work properly, hope it catches on fire"- Nelson Pass @ BA3
"I fired up the prototype. Literally." The Prophet Pass.
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