THT Build in progress

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Rowan611
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Re: THT Build in progress

#121 Post by Rowan611 »

So, I had a thought yesterday. I’ve reached the point in the build where the second side gets put on. But, I was wondering; can I install the drivers before I put the second side on? If not, why? Outside of possibly getting PL on the driver (not a good thing, I know); what are the other risks? I will be using a flush bit on the second side once the PL has cured. So, I guess possible sawdust isn’t good either. Just curious. Would be a whole lot easier (obviously), without all the trouble of cutting another window.
1299s L/C/R | Volt8s | Crown amps | 24" THT x 4| Minidsp 10x10 2x4HD | Panamax 5300PM | LG 65B6 | Oppo 203 | Crowsons | HoverBoss | Behringer NX amps

THT Build

Rowan611
Posts: 127
Joined: Wed Jun 04, 2014 2:08 pm
Location: Pella, IA

Re: THT Build in progress

#122 Post by Rowan611 »

Well, I went ahead and installed the driver before I put the second side on. I used some 4 mil plastic to cover the driver just to protect it. I’ll keep it covered until I’m ready to install the access panel. Was so much easier installing the driver.
1299s L/C/R | Volt8s | Crown amps | 24" THT x 4| Minidsp 10x10 2x4HD | Panamax 5300PM | LG 65B6 | Oppo 203 | Crowsons | HoverBoss | Behringer NX amps

THT Build

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Bill Fitzmaurice
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Re: THT Build in progress

#123 Post by Bill Fitzmaurice »

It won't be so easy should you ever have the need to remove it. With luck you won't, but there's always Murphy's Law to consider. I made a bundle building and installing custom made replacement pre-amps into Standell amps that used pre-amps potted in epoxy, so that their components couldn't be replaced. Some genius at Standell thought that was a good idea, since the transistors they used had an advertised life of fifty years. The amps I worked on averaged five years old. :bash:

Rowan611
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Location: Pella, IA

Re: THT Build in progress

#124 Post by Rowan611 »

Bill Fitzmaurice wrote: Fri May 18, 2018 9:55 pm It won't be so easy should you ever have the need to remove it. With luck you won't, but there's always Murphy's Law to consider. I made a bundle building and installing custom made replacement pre-amps into Standell amps that used pre-amps potted in epoxy, so that their components couldn't be replaced. Some genius at Standell thought that was a good idea, since the transistors they used had an advertised life of fifty years. The amps I worked on averaged five years old. :bash:
Wouldn’t it just as difficult if I didn’t cut the second access panel anyway? The screws are positioned per the instructions. So, even if I waited to install the driver after the second side was on, removing it would still suck. Lol. But, I get what you’re saying....should have cut the second access panel.

Did you get my PM?
1299s L/C/R | Volt8s | Crown amps | 24" THT x 4| Minidsp 10x10 2x4HD | Panamax 5300PM | LG 65B6 | Oppo 203 | Crowsons | HoverBoss | Behringer NX amps

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Bill Fitzmaurice
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Re: THT Build in progress

#125 Post by Bill Fitzmaurice »


Rowan611
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Re: THT Build in progress

#126 Post by Rowan611 »

Bill Fitzmaurice wrote: Sat May 19, 2018 10:01 am viewtopic.php?f=10&t=5541
Roger!!

Have a quick question regarding the access panel. Last time I built a THT I used a #10, 1.25” wood screw to attach the access panel. However, I was wondering; can I use a #8, 1.25” Recex screw? If not, no biggie. Just curious.
1299s L/C/R | Volt8s | Crown amps | 24" THT x 4| Minidsp 10x10 2x4HD | Panamax 5300PM | LG 65B6 | Oppo 203 | Crowsons | HoverBoss | Behringer NX amps

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Bill Fitzmaurice
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Re: THT Build in progress

#127 Post by Bill Fitzmaurice »

I don't see why not.

Bruce Weldy
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Re: THT Build in progress

#128 Post by Bruce Weldy »

Rowan611 wrote: Sat May 19, 2018 1:16 pm
Bill Fitzmaurice wrote: Sat May 19, 2018 10:01 am viewtopic.php?f=10&t=5541
Roger!!

Have a quick question regarding the access panel. Last time I built a THT I used a #10, 1.25” wood screw to attach the access panel. However, I was wondering; can I use a #8, 1.25” Recex screw? If not, no biggie. Just curious.
More important than the size of the screw is the number of screws and how far apart they are. Don't scrimp on the access cover screws - I usually put no more than two inches between screws.

6 - T39 3012LF
4 - OT12 2512
1 - T24
1 - SLA Pro
2 - XF210


"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."

Rowan611
Posts: 127
Joined: Wed Jun 04, 2014 2:08 pm
Location: Pella, IA

Re: THT Build in progress

#129 Post by Rowan611 »

Bill Fitzmaurice wrote: Sat May 19, 2018 1:30 pm I don't see why not.
Great! So, next question is; should I pre-drill the holes?
1299s L/C/R | Volt8s | Crown amps | 24" THT x 4| Minidsp 10x10 2x4HD | Panamax 5300PM | LG 65B6 | Oppo 203 | Crowsons | HoverBoss | Behringer NX amps

THT Build

Rowan611
Posts: 127
Joined: Wed Jun 04, 2014 2:08 pm
Location: Pella, IA

Re: THT Build in progress

#130 Post by Rowan611 »

Bruce Weldy wrote: Sat May 19, 2018 2:19 pm
Rowan611 wrote: Sat May 19, 2018 1:16 pm
Bill Fitzmaurice wrote: Sat May 19, 2018 10:01 am viewtopic.php?f=10&t=5541
Roger!!

Have a quick question regarding the access panel. Last time I built a THT I used a #10, 1.25” wood screw to attach the access panel. However, I was wondering; can I use a #8, 1.25” Recex screw? If not, no biggie. Just curious.
More important than the size of the screw is the number of screws and how far apart they are. Don't scrimp on the access cover screws - I usually put no more than two inches between screws.
Wasn’t planning on it :lol: Was going to match the last one I built.
1299s L/C/R | Volt8s | Crown amps | 24" THT x 4| Minidsp 10x10 2x4HD | Panamax 5300PM | LG 65B6 | Oppo 203 | Crowsons | HoverBoss | Behringer NX amps

THT Build

Rowan611
Posts: 127
Joined: Wed Jun 04, 2014 2:08 pm
Location: Pella, IA

Re: THT Build in progress

#131 Post by Rowan611 »

Little update. Went ahead and pre-drilled the access panels. Figured it’ll be easier getting the panels in right. I also tested the cabs for leaks. And thankfully there was none. Glad all the PL I used work...went overboard. And, I’ve already got a coat of primer on and drying. Will Duratex next. Then I’ll get the access panels on and test form leaks again. Can’t wait to play around with 4 of these.
1299s L/C/R | Volt8s | Crown amps | 24" THT x 4| Minidsp 10x10 2x4HD | Panamax 5300PM | LG 65B6 | Oppo 203 | Crowsons | HoverBoss | Behringer NX amps

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Bill Fitzmaurice
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Re: THT Build in progress

#132 Post by Bill Fitzmaurice »

Rowan611 wrote: Sun May 20, 2018 11:19 pm Can’t wait to play around with 4 of these.
Make sure you wear brown pants. :shock:

Rowan611
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Re: THT Build in progress

#133 Post by Rowan611 »

Bill Fitzmaurice wrote: Mon May 21, 2018 6:50 am
Rowan611 wrote: Sun May 20, 2018 11:19 pm Can’t wait to play around with 4 of these.
Make sure you wear brown pants. :shock:
Lol. My room is over 7000 cubic ft, and littered with nulls. I’m currently running the two I have near field; it was the only way to really feel the bass. But, my plan with 4 is to put one in each corner and run some sweeps. I’m very interested to see if that makes a difference.
1299s L/C/R | Volt8s | Crown amps | 24" THT x 4| Minidsp 10x10 2x4HD | Panamax 5300PM | LG 65B6 | Oppo 203 | Crowsons | HoverBoss | Behringer NX amps

THT Build

Rowan611
Posts: 127
Joined: Wed Jun 04, 2014 2:08 pm
Location: Pella, IA

Re: THT Build in progress

#134 Post by Rowan611 »

Bill Fitzmaurice wrote: Mon May 21, 2018 6:50 am
Rowan611 wrote: Sun May 20, 2018 11:19 pm Can’t wait to play around with 4 of these.
Make sure you wear brown pants. :shock:
Brown pants is right. Got them all going last night. One in each corner has really made a significant difference in the bass response. I haven’t confirmed with a sweep yet, but my butt and ears tell me I’m right. I almost don’t want to run a sweep for fear that I’m wrong.... But, I know I’ll do one anyway.
1299s L/C/R | Volt8s | Crown amps | 24" THT x 4| Minidsp 10x10 2x4HD | Panamax 5300PM | LG 65B6 | Oppo 203 | Crowsons | HoverBoss | Behringer NX amps

THT Build

Rowan611
Posts: 127
Joined: Wed Jun 04, 2014 2:08 pm
Location: Pella, IA

Re: THT Build in progress

#135 Post by Rowan611 »

So, it’s been a few months with all 4. I was right about the bass response. I’ve done dozens of sweeps with them in place. I still have a pretty nasty null, but everything else is better. I’ve pulled down 3 large peaks, and added 2 small shelf filters in the 42hz and 30hz areas. I’ve also got an aggressive filter in place protecting the drivers under 20hz. So far, I’m really loving having 4. I’m thinking my next upgrade will be Crowsons. That’ll get me full bandwidth.
1299s L/C/R | Volt8s | Crown amps | 24" THT x 4| Minidsp 10x10 2x4HD | Panamax 5300PM | LG 65B6 | Oppo 203 | Crowsons | HoverBoss | Behringer NX amps

THT Build

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