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Keystone Sub Using 18, 15, & 12 Inch Speakers
Keystone Sub Using 18, 15, & 12 Inch Speakers
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Old 29th April 2019, 02:23 PM   #1221
Billy Woods is offline Billy Woods
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Hey guys. I've read the majority of the posts here over the last year or so, and I think i'm just coming to "get" how a TH works (Kind of).

I was playing around with HornResp (Which i've gotten working on my Mac) to get the hang of it. I used the T-S parameters from the Dayton Audio RSS315HO-4 in a 2x12 arrangement, same as the Lab12, and the Keystone parameters from Post #96.

I may have done something wrong, but it seems to come out rather nicely. I don't want anyone to do my work for me, but does that seem right?
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Old 29th April 2019, 05:41 PM   #1222
weltersys is offline weltersys  United States
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Quote:
Originally Posted by Billy Woods View Post
I used the T-S parameters from the Dayton Audio RSS315HO-4 in a 2x12 arrangement, same as the Lab12, and the Keystone parameters from Post #96.

I may have done something wrong, but it seems to come out rather nicely. I don't want anyone to do my work for me, but does that seem right?
Billy,

The TS parameters are close enough to the LAB12 that the RSS315HO-4 should work OK, if the amp you use can handle their low impedance.

Art
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Old 21st May 2019, 09:46 PM   #1223
geritass is offline geritass  Mexico
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Hi, everyone. Iam so confused about the updated plan, may somebody share the actual plans. Iam so excited to make this cabinet.
Sorry for my bad english.
Thanks.
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Old 22nd May 2019, 08:31 AM   #1224
USRFobiwan is offline USRFobiwan
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Keystone Sub Using 18, 15, & 12 Inch Speakers
See post #488
__________________
Destroyed some nostalgia
For the love of Horns and glory of pressure waves.
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Old 24th May 2019, 12:14 AM   #1225
geritass is offline geritass  Mexico
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Originally Posted by USRFobiwan View Post
See post #488
Great! Many thanks USRFobiwan.
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Old 6th July 2019, 11:07 PM   #1226
daneo is offline daneo
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Hi guys, I'm planning my first Keystone build, Iv'e previously built 2 VBSS subs using the Dayton Audio PA460-8 tuned to 31hz (for live band duties <100 people), worked really well but just not enough especially outdoors. So the upgrade plans are in place. ENTER the Keystones
Planning two cabs with B&C 18TBW100-4 installed.
But my question is where are you guys putting your handles? I want them flush mounted like this Parts Express Steel Bar Speaker Cabinet Handle , but obviously that will mean cutting in the walls and protruding into the cavity. Seems it cant be done on the sides. Next option is two on top and two on bottom. How will this effect the cabinets acoustic properties? Whats your recommendation? thanks
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Old 7th July 2019, 05:02 PM   #1227
weltersys is offline weltersys  United States
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Quote:
Originally Posted by daneo View Post
Planning two cabs with B&C 18TBW100-4 installed.
1)But my question is where are you guys putting your handles?
2)I want them flush mounted like this Parts Express Steel Bar Speaker Cabinet Handle , but obviously that will mean cutting in the walls and protruding into the cavity. Seems it cant be done on the sides. Next option is two on top and two on bottom. How will this effect the cabinets acoustic properties?
3)Whats your recommendation? thanks
Daneo,
1) I did not install handles on the original Keystones, as none were needed to put a two-wheel cart under the back, tip, and roll into position.
2)The cross sectional area of those handles won't have much effect on the frequency response or sensitivity if placed along the center line front to back.
3)I recommend avoiding transportation or venues that require lifting subs ;^)

Art
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Old 7th July 2019, 08:23 PM   #1228
carlthess40 is offline carlthess40  United States
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Location: Lake Mary Florida
Quote:
Originally Posted by daneo View Post
Hi guys, I'm planning my first Keystone build, Iv'e previously built 2 VBSS subs using the Dayton Audio PA460-8 tuned to 31hz (for live band duties <100 people), worked really well but just not enough especially outdoors. So the upgrade plans are in place. ENTER the Keystones

Planning two cabs with B&C 18TBW100-4 installed.

But my question is where are you guys putting your handles? I want them flush mounted like this Parts Express Steel Bar Speaker Cabinet Handle , but obviously that will mean cutting in the walls and protruding into the cavity. Seems it cant be done on the sides. Next option is two on top and two on bottom. How will this effect the cabinets acoustic properties? Whats your recommendation? thanks


I have four of these if you want them. Just pay shipping from Florida
Message me
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Old 7th July 2019, 11:40 PM   #1229
daneo is offline daneo
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Art, Thanks for your reply. Didn't think I'd get a reply from the master designer himself
I think your right... moving/carrying them would be a PIA and a trolley would be sufficient anyway. I don't do regular gigs so I'm only talking a hand full times a year. So I may just leave them out now.

Carlthess40, Thanks for offer. Id imagine shipping would be pretty $$ to Australia. Besides, this is DIY, and I kinda think building them yourself is half the fun (certainly not economical though)
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Old 20th July 2019, 09:24 AM   #1230
daneo is offline daneo
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So I have been drawing up the keystone in CAD, but because i'm working with 18mm wood thickness and I can't use Arts exact measurements as the 3/4in = 19mm. Yes that seems minimal but that equates to changes in the horn heights that may or may not be significant (I don't know). I have attached an image to try to show it. But I have included some possible changes in magenta by shifting panel H 4mm closer to the driver to match Art's original S1.
Does this make sense? Am I worried about nothing? Will it make any real change to the actual sound?
regards Dane
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