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Crimes Against Cabs - Rehab Help Request
- Thread starter Cardinal Fang
- Start date
Why yes... I got the grille off and speakers out. For some reason the upload file feature isn't working from the app on my phone so I'll add them later.
So the reason I used wood screws for the bottom speakers and not the existing studs is.... The studs were removed. They're MIA. AWOL.
I found teenuts at the hardware store after work today so I have a good source close at hand.
I hate T nuts. Only way I'd use t-nuts is if I had no access to the interior. They cross thread, push out, spin...it's a pain.
Since you already have the back off, just use a good panhead screw and nuts with a lock washer or aircraft nuts. See if 1/4-20 will fit, with a #3 Phillips head. You can put a vice grip on the nuts to hold them while you tighten the screws if you can't reach both sides by yourself.
Since you already have the back off, just use a good panhead screw and nuts with a lock washer or aircraft nuts. See if 1/4-20 will fit, with a #3 Phillips head. You can put a vice grip on the nuts to hold them while you tighten the screws if you can't reach both sides by yourself.
- Feb 12, 2006
- 60,978
- 5
- 220,739
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
T-nuts, installed properly with the correct tools and hole sizes, are very reliable. We see very few problems and we have probably used several million T-nuts over the years...
So the bottom speaker was attached but not very well. The crossheads were stripped on half of them; pliers and determination to the rescue. I've done some hacky things over the years and own up to every one of them but this really disappoints me. No matter though, chin up, everything's on the mend now.
I have some rusty staples available *right now* for a low LOW price if anyone wants to take their tetanus shot for a spin, just lemmeeno. *International shipping rates apply.*
I have some rusty staples available *right now* for a low LOW price if anyone wants to take their tetanus shot for a spin, just lemmeeno. *International shipping rates apply.*
It looks like the cabinet, including the speaker baffle is particle board (MDF).
If so, you’ll have problems with the T-nuts. The tapered t-nut barbs will not hold well in MDF.
There is a product called a hurricane nut that can be used. It is important to follow the installation instructions. Plywood is way better for the baffle.
If so, you’ll have problems with the T-nuts. The tapered t-nut barbs will not hold well in MDF.
There is a product called a hurricane nut that can be used. It is important to follow the installation instructions. Plywood is way better for the baffle.
- Feb 12, 2006
- 60,978
- 5
- 220,739
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
Those are Romex staples, also not good in MDF and particle board
Thank you, I'll look for those. Tee nuts look like they're for being pulled in by the bolt, I don't know how deep they'd penetrate in MDF before the bolt snapped? (That's Foreshadowing, read on)
Yeah, it's really obvious on the inside that they pushed some chips out pretty badly. I'll remove the broken bits and look again tomorrow.
So I said the studs were MIA and AWOL... Once I turned the thing around and looked at the front I realized they were QUITE present, just snapped off. See attached pictures.
There is absolutely no way I did that. That's just not something I could do and leave behind. Not no way, not no how.
On a brighter note: I might be able to reuse the factory holes. We shall see.
Thanks again for the input, keep it coming!
If you can remove the baffle and replace it with void free plywood, such as baltic birch, you will be miles ahead.
- Feb 12, 2006
- 60,978
- 5
- 220,739
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
T nuts are not pulled in by the screw, they are pressed in.
Anybody else think it's weird that the drivers are mounted on the back of the baffle?
That was normal back in the day...
Michael Schreiber
Commercial User
@Cardinal Fang : Yeah, welcome to TB! \m/
The drivers I know can be mounted either way. I prefered back mounting (rear loading) my Celestion, since the driver has a cork ring on the front, so the driver's metal basket doesn't touch the baffle wood directly. May not make a difference in sound, though.
However, front loading might be preferable for easier access when the driver needs to be changed.
If I end up reusing the baffle I have a C clamp out in the garage I can use to press them in. Just have to be careful about keeping them square with the baffle surface, not press them in crooked. The barrel on the tee nuts I saw yesterday were long enough to help guide it in the hole.
- Feb 12, 2006
- 60,978
- 5
- 220,739
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
Almost every driver manufactured in the last 20 years has a rear gasket, so there is no disadvantage to from loading... and lots of advantages.
Michael Schreiber
Commercial User
Mine don't... but it wouldn't be rocket science to add one, I admit
I see it's more practial when swapping drivers (easier access to front loaded ones).
Are other advantages, from your experience?
If you put the swivel end of the clamp oposit the nut, the nut shouldnt go to nuts on you.
Just a bit of PL wood glue or gorilla glue in the hole and on the flange will help them stay put. Both, like diomonds and herpies are forever.
Plywood replacement makes fasteners hold better, but with the rest being MDF, not much other difference. MDF is very good from a sonic perspective.
The sewing shop also has foam bed tops with open cells and egg crate shape on one side. Probably as good or better than polyfill. Easier to glue on. I got some to use but sadly, became new foam for our bar stools.
- Feb 12, 2006
- 60,978
- 5
- 220,739
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
Removable panels necessary for back mounted drivers can seriously weaken the enclosure.Mine don't... but it wouldn't be rocket science to add one, I admit
I see it's more practial when swapping drivers (easier access to front loaded ones).
Are other advantages, from your experience?
Michael Schreiber
Commercial User
