If I had 2 x 21's, then I would definitely build this enclosure.
I made it as small as possible with the 21.5" internal width.
I made it as small as possible with the 21.5" internal width.
What are the rest of the dimensions...36" tall" x 14" wide (I assume) x ? depth?
@BP1Fanatic
https://www.hoqs.com.au/projects/pa...DnW090tJ8hMWTtsz2Q_aem_ZQ4dIyfqjb2ZzV_N1_qJMA
Yellow is more than 3x as long as green…. So you get the phase discontinuity when yellow goes in resonance and green is just gurgling 😝
But if you put a bunch of damping in green then you can slow the affective speed of sound propagation enough to create less of an issue ?
🔊🔊hurray! So interesting and exciting …. This stuff is fun, even if it sounds weird
https://www.hoqs.com.au/projects/pa...DnW090tJ8hMWTtsz2Q_aem_ZQ4dIyfqjb2ZzV_N1_qJMA
Yellow is more than 3x as long as green…. So you get the phase discontinuity when yellow goes in resonance and green is just gurgling 😝
But if you put a bunch of damping in green then you can slow the affective speed of sound propagation enough to create less of an issue ?
🔊🔊hurray! So interesting and exciting …. This stuff is fun, even if it sounds weird
Attachments
Last edited:
I think when TH's came out, they required dampening material for the 1st 3rd of horn path...just like a TL enclosure.
2 of these enclosures would fit in my trunk.
2 enclosures in my trunk...all the jealous punks can't stop the dunk (Public Enemy's "Don't Believe The Hype")!
2 enclosures in my trunk...all the jealous punks can't stop the dunk (Public Enemy's "Don't Believe The Hype")!
You didn't move L45 to 45.1cm too.
The response is worse at 45.1cm at L12 & L45.
L12 & L45 @ 6.25".
L12 & L45 @ 17.76".
I made a mistake in post #402.
The enclosure should have a 32.75" internal width and 34" external width.
I had 9ft on the brain at the time when that STH is 8ft long.
Here is the 2 x LaVoce WAN124.01 that I would build for my Crown Vic.
This STH is a 9 footer!
The enclosure should have a 32.75" internal width and 34" external width.
I had 9ft on the brain at the time when that STH is 8ft long.
Here is the 2 x LaVoce WAN124.01 that I would build for my Crown Vic.
This STH is a 9 footer!
pl loo
I don’t really know, but I imagine some of the reasons that the exit is offset and has a certain aperture to it in the keystone sub design is to acoustically help avoid some of this junk?
It certainly makes sense to me (and my ears and amatuer dsp efforts) how Brian Steele is constantly pointing out how important it is to avoid that and not get stuck with steep crossovers that turn it all into delay instead of the super high Q ringing resonance?
There are other designs (like the newer paraflex stuff using strategic driver entry positions and stubs ) that avoid all of this and it’s so refreshing to switch subwoofers and not hear it immediately after getting annoyed by it .
Build it and make it ‘adjustable’ so you can somehow remove the issues in a fun and incredibly useful learning experiment ?
By a few 4” dayton tcp115-4 and scrap plywood to goof off in your garage . They’re willing to excite these things if you scale down the csa . They’re like nick Diaz and pepper the air with punches 😝
I don’t really know, but I imagine some of the reasons that the exit is offset and has a certain aperture to it in the keystone sub design is to acoustically help avoid some of this junk?
It certainly makes sense to me (and my ears and amatuer dsp efforts) how Brian Steele is constantly pointing out how important it is to avoid that and not get stuck with steep crossovers that turn it all into delay instead of the super high Q ringing resonance?
There are other designs (like the newer paraflex stuff using strategic driver entry positions and stubs ) that avoid all of this and it’s so refreshing to switch subwoofers and not hear it immediately after getting annoyed by it .
Build it and make it ‘adjustable’ so you can somehow remove the issues in a fun and incredibly useful learning experiment ?
By a few 4” dayton tcp115-4 and scrap plywood to goof off in your garage . They’re willing to excite these things if you scale down the csa . They’re like nick Diaz and pepper the air with punches 😝
Last edited:
Got a bunch of free stuff from a coworker. Apparently he likes focal utopia. I think I have 8 of those woofers. If any of it is in working order I’m doing good. Got an old alpine cde-7872 and a couple pioneer avic-8200nex. The tweeters don’t look utopia tho. Maybe they’re an older model. Some of these woofers are very old originals models.
Attachments
Lucky you!
I was in another thread a couple of days ago where they posted pics of Richard Clark's award winning Buick GNX. I remember having that magazine issue. He had the infamous Alpine CD player with the 4 volt RCA outputs.
I was in another thread a couple of days ago where they posted pics of Richard Clark's award winning Buick GNX. I remember having that magazine issue. He had the infamous Alpine CD player with the 4 volt RCA outputs.