Vertical 2x12 slant cab size

[TIMBO]

Hey Jojo, The boys did an outdoor gig a few weeks back and the cab work great. The Jubilee was not quite on 10 (cab not miced)and cut through the crowd noise and drummer with no problems.
The cab has two MOD 12/50s and seem to handle all types of guitar work well.

When I bought the MODs I really took a stab in the dark with them, but looks like they had hit the mark. 

[jojokeo]

I haven't heard them in person but I have a speaker sample CD (maybe from Webers's speaker site?) and they actually sounded very good on that. Can't beat the cost on too.

[Ed_Chambley]

Timbo,
Really nice work.  You are one heck of a carpenter.  May consider a bit of 1" foam for the walls of the cab.  Even the open top.  The foam will remove any boxey sound and insure nice projection by removing unwanted resonances that cancel the speakers own response.  Before you commit yourself, just put pillow stuffing in it and see if you like it.  If you do, then you can go the distance.

Check the maximum extension of the speaker and port the bottom to allow for the extension.    I have found these things to balance the sections and I prefer a center board.  Basically you are building a vertical bassman cab.  Fender used that yellow stuff.  My favorite material is called Robotex, it is just a high density foam.

The slant looks cool.

[jojokeo]

just put pillow stuffing in it and see if you like it.  If you do, then you can go the distance.
The slant looks cool.

My wife just threw out 4 or 6 pillows I could've used! Ed, you gave me an idea!    Rather than use house insulation ala Fender, should I visit the back of a carpet company instead and gather up some of their throw-away under carpet padding instead? Then staple it to apply it so all the sides should be sufficient?

[TIMBO]

Thanks guys, There could be quite a lot of math that goes into a cab design as well as construction. Its all a bit over my head and I'm sure there could be more that can be done to make a better cab.

These cabs are in the hands of guys that know their way around a guitar and the response has been great.

For a small venue ( hall size) they work well, as you may not need them to be miced. Thanks

[Ed_Chambley]

Thanks guys, There could be quite a lot of math that goes into a cab design as well as construction. Its all a bit over my head and I'm sure there could be more that can be done to make a better cab.

These cabs are in the hands of guys that know their way around a guitar and the response has been great.

For a small venue ( hall size) they work well, as you may not need them to be miced. Thanks

In the HiFi world there is a lot that goes into cab design.  With guitar it seems the approach has always been try it and see if you like it.


The big thing is that the players like them.  I like to mess around with cabs and speakers since they are the single most important element.  It has always been strange to me a guy will spend $300 more on upgraded parts in their amps and turn right around and say "those speakers cost too much".  The $20 dollar cap is the key to great tone, but those Alnico speakers are too expensive.


Anyway, just wanted to say again, they really turned out great.

[Ed_Chambley]

just put pillow stuffing in it and see if you like it.  If you do, then you can go the distance.
The slant looks cool.

My wife just threw out 4 or 6 pillows I could've used! Ed, you gave me an idea!    Rather than use house insulation ala Fender, should I visit the back of a carpet company instead and gather up some of their throw-away under carpet padding instead? Then staple it to apply it so all the sides should be sufficient?

When I am sure I am going to do this, I use 3M 77.  I have never really liked the idea of staples inside my speaker boxes, but that is just me.  I will bet it is just you now.

[jojokeo]

Good idea, I already keep the Super77 in my garage. I like to use it for tolex too. What do you use for tolex or do you even mess with it? Also, is padding for carpeting what you're referring to and okay to use?

[TIMBO]

Hey guys, I haven't tried any padding in side, so I can't comment on that. As for gluing tolex I used BONDCRETE, a water base PVA glue that you mix and apply to concrete to make it stick to other concrete surfaces.
It will soften when wet after it has dried, but the tolex itself is water proof. I would think that you would have to leave the cab in the rain for a few days for the glue to let go and then the only bit that could be effected would be the joints in the tolex.

I don't recommend leaving the cab in the rain..............................

I haven't tested the effects of BEER yet, so i'll polish off a few and report back.

[Ed_Chambley]

Good idea, I already keep the Super77 in my garage. I like to use it for tolex too. What do you use for tolex or do you even mess with it? Also, is padding for carpeting what you're referring to and okay to use?

No, Robotex is the sound insolation material used in high end cars.  The carpet stuff is called rebond and I have never tried it in a cab.  Not sure if it absorbs sound.


When adding the material I usually do the sides in the inside first as this is sometimes all you want.  THe bottom and top left bare helps in open back for upper dispersion to the rear.  It is all about what you like in a guitar speaker cab.  Some (most) just let them ride and bitch about their speakers, but I have found most speakers will adjust to your liking by using different types of foam.


Just give it a try and you will find what you like.  Stop by a auto trim shop and buy a little high density foam from them.  Most will give you some they have cut.  An electric knife like used to cut a turkey works very well to cut it.