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3rd September 2007, 03:18 PM
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#1 |
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diyAudio Member
Join Date: Dec 2005
Location: West Howe
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Can I use this in an E.B.S.?
Hello Everybody,
I have a Longmill 10" woofer and found the following spec Re = 3.6 ohms Zmax =50.3 ohms Fs = 27Hz Qms = 4.3690 Qes = 0.3368 Qts = 0.3127 fc= 77.5hz Vas = 99.94 L E.B.P. = 80.1662 At the mo, its in a basic reflex enclosure. I've learnt to build a sealed box and the reflex, now I want to try the Extended Bass Shelf. Please can you give some pointers. Cheers Mike 
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3rd September 2007, 03:42 PM
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#2 |
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Did it Himself
diyAudio Member
Join Date: Nov 2003
Location: Gloucestershire, England, UK
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Any driver that works in a normal vented box you can also use in EBS as EBS is just a vented box made 'oversize' and tuned to suit.
What application is this Mike? In the house?
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3rd September 2007, 04:08 PM
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#4 |
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diyAudio Member
Join Date: Dec 2005
Location: West Howe
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Hello
Hi Rich,
Got some scrap wood, so thought I'd play whilst waiting to move. I'll stick it in the car, house is a mess at the mo. How big would the box be? Cheers Mike
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If it don't work, I'll fix it in the mix! Or visit http://lsdp.proboards.com/index.cgi |
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3rd September 2007, 04:26 PM
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#5 | |
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diyAudio Member
Join Date: Jun 2003
Location: Chamblee, Ga.
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Re: Hello
Quote:
EBS dates back to when you tuned the cab to ~what we now call Vas when the vent was tuned to Fs, though up to ~0.7*Fs is fine, so ~100 L tuned to as low as ~19 Hz works for me. GM
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3rd September 2007, 06:33 PM
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#9 | |
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diyAudio Member
Join Date: Jun 2003
Location: Chamblee, Ga.
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Quote:
Can't comment about your locale, but around here the extended shelf works very well WRT ~mirroring a typical room's gain and ultimate 'bleed off' down very low assuming the driver allows a low enough tuning frequency and has a fairly low Qts. Never built any true subs for cars though, so not sure if this applies to them. GM
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Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents. |
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4th September 2007, 09:19 AM
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#10 | |
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diyAudio Member
Join Date: Nov 2003
Location: Brighton UK
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Quote:
Hi, not recommended for in car use IMO, half the size and an amplifier with low bass boost would be better IMO. /sreten.
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Lowish Qts drivers like yours seem to model best with an EBS alignment 
