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My DIY Marshall 1960 4x12 Replica


theDogger

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Great build and finish work.

 

If I may add my two cents-

 

Speaking from experience, I would reinforce those joints. Ideally, those edge joints all need to be box joints, but they are a pain in the arse to get right (although it seems the ultimate set of tools would make it easy work! jealous!). I too use biscuit joinery on the butt joints, but they are NOT as strong as we hope. Esp w/ a 4x12 rocking around. Yes, the back and front add some great structural support (from racking while rocking), but some internal bracing is a good idea.

 

My 2x12 (Avatar Vintage clone) has seen a LOT of moving around and beating on - and I've had no issues. Just simple 1.5x1.5 inch screwed into the two corner surfaces w/ glue adds a TON of support.

 

If I can find the pics of my build, I'll post.

 

Anyway, hope thats useful. Again- INSPIRINGLY good build. Fantastic work.

 

J

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Great build and finish work.


If I may add my two cents-


Speaking from experience, I would reinforce those joints. Ideally, those edge joints all need to be box joints, but they are a pain in the arse to get right (although it seems the ultimate set of tools would make it easy work! jealous!). I too use biscuit joinery on the butt joints, but they are NOT as strong as we hope. Esp w/ a 4x12 rocking around. Yes, the back and front add some great structural support (from racking while rocking), but some internal bracing is a good idea.


My 2x12 (Avatar Vintage clone) has seen a LOT of moving around and beating on - and I've had no issues. Just simple 1.5x1.5 inch screwed into the two corner surfaces w/ glue adds a TON of support.


If I can find the pics of my build, I'll post.


Anyway, hope thats useful. Again- INSPIRINGLY good build. Fantastic work.


J

 

^ good advice-

 

here is my first build and how I did my joints- I didn't use biscuits, I did this interlocking thing that so far (3 years +) has held up very well through all kinds of gigging- what my reinforce pic doesn't show is the extra screws and glue I put in from the outside into the bracing block on both ends...it is crazy sturdy and really solid as a rock-...that being said, excellent job! I wish I had your resources...I did mine with a circular saw, a jigsaw and a dremel-

 

my next cab (this summer) will be done using box joints...it's a fun project for those that are considering doing it-

 

cabfinished.jpg

 

cabjoint.jpg

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Speaking from experience,
I would reinforce those joints.

 

 

+1.

 

All the work you put into it, might as well get the sound out of it. If you want your amp to sound like a monster, do yourself a favor and reinforce every inch where woods meet. Use wood glue and screws. If you want to do it right, use some in at the centers as well, and use a center baffle brace.

 

Way to measure how well you cab is constructed, max the bass on your amp and turn it up until it starts farting, then dial back a little. Place your hand on various parts of the cab centers (back panel, sides, top). It shouldnt vibrate much to the low bass sounds. A well constructed cab will vibrate VERY LITTLE. Proceed to bracing it, like mentioned. The effect will be greater if you also seal your cab airtight*. Once you finish bracing/sealing, do the same thing with your amp. This time you will notice you can add more bass before it farts out, AND it will vibrate much less when you place your hand on it. Also, you will notice a volume increase.

 

-D

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I have to say that DYNAMAT really help absorb the unwanted back wave. I hear ya when you talk about construction. Remember I did a lot of custom car audio install and I am not talking about your local Best Buy Crap! I'll try and snap some shots of the inside now with all the wiring! Also I went through and sealed all the joints....

 

I also have to say I just got the MTM2 and but some ZW EMG's in with the 18 volt mod.....WOW! It is much cleaner, heavier and chuncker than just the 9 volt.

 

Also if someone can give me a quick tutorial on how to ger a decent recording in the PC I would be happy to upload some video!

 

I am not to sold on the Hellatone 60L though. I have 1-more G12T-75 I might pick 1 more up and make all 4 speakers the same. The HT 60L's are too much mid-range.....I am going to swap 2 of the speakers into an X pattern and see if that smooths things out. Right now I am enjoying playing only the 2-G12T-75's

 

 

theDogger

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4x8 Popular (13 ply)	                                                0	 $35.00 	 $-   Celestion HellaTone 60L	                                                2	 $76.75 	 $153.50 Celestions G12T-75	                                                2	 $31.00 	 $62.00 Marshall Style Metal Recessed Cabinet Handle	                        1	 $22.00 	 $22.00 Marshall Corners (8)	                                                1	 $18.00 	 $18.00 Marshall Style Black Elephant Tolex / 54'' W (3-4 yrds)	                5	 $14.50 	 $72.50 Marshall Caster & Socket Set	                                        0	 $-   	         $-   Grill Cloth Salt/Pepper 57"	                                        1	 $54.00          $54.00 Jack Plate Metal 5x7 Blank	                                        1	 $5.00 	          $5.00 Switchcraft #14B switching 1/4 jack	                                2	 $4.99 	          $9.98 Switchcraft #14B mono 1/4 jack	                                        1	 $2.50 	          $2.50                                                                                            TOTAL: 	 $399.48

 

 

There ya go the biggest expense was the HellaTones which I am going to list on eBay this weekend...

 

theDogger

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Here are some shots of the 2x12 that I just finished and the stripped 4x12

 

A little fun with the 4x12 plate

2x12-14.jpg

 

I stripped the old 4x12 down to recover it and recess the handles and rear plate. As my skills tolexing have gotten a lot better. I will be finishing this up in the next week I'll post pics of the re-tolexing.

2x12-15.jpg

 

2x12-10.jpg

 

2x12-11.jpg

 

2x12-13.jpg

 

2x12-16.jpg

 

2x12-17.jpg

 

 

Time I can build one of these in two weekend with about 5 hrs per day

As far as cost. I by all of my accessories from two places.

https://www.tubesandmore.com/ (best on shipping cost cheap)

http://www.speakerbuildersupply.com/default.asp (most all the hardware call them to get a better shipping price)

 

 

 

Plywood - $38.00 (1 4x8 sheet can make 1-4x12 or 2x12 and a 1x12)

Tolex - $14 per yard you need 4 yrds to cover a 4x12 and 2 to cover a 2x12. I buy from here becasue the role is 54" not 36" Effectivally you can buy the 4 yards and split it and cove a 4x12 and a 2x12 (https://www.tubesandmore.com/products/grill_cloth_tolex_piping?filters=Brand%3DMesa)

Grill Cloth - $26.50 sold per yard so 2 yards to cover the 4x12 and 2x12 https://www.tubesandmore.com/products/S-G471

Piping .95 https://www.tubesandmore.com/products/S-GP004

Marshall front Corners $8.00 https://www.tubesandmore.com/products/P-H1091

Marshall Rear Corners $8.00 https://www.tubesandmore.com/products/P-H1090

Rubber Feet $6.00 https://www.tubesandmore.com/products/P-H9300

Side handles $16 for 4x12 $12 for 2x12 http://www.speakerbuildersupply.com/speaker-cabinet-steel-bar-handle-p/sbh100.htm

Jack Dish $10 w/ switchcraft - http://www.speakerbuildersupply.com/product-p/jdsqq.htm

Speaker mounting kits $3.30 http://www.speakerbuildersupply.com/product-p/mstnk.htm

 

think that's everything and some misc. stuff that you get at HomeDepo

Weldwood Contact Cement $15

1 5/8" black wood screws

 

So about $225 then I look for speakers on ebay or WGS in there b-stock

 

But overall a lot less than an actual Marshall or Mesa in the end

 

theDogger

 

 

 

 

 

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Thought that I would post my DIY build of a Marshall Slant 1960 4x12. Here is the PDF of the plans that I followed. I used Baltic Birch 13 ply voidless sheets. (I am also looking for some Marshall 1936 2x12 plans. Have enough wood to build a 2nd cab).

 

I will up date the thread as I move along. I should mention that I am fortunate enough to have access to a master cabinet builder. My brother-in-law's father-in-law. The guy is just plain awesome. He has done most of the cutting and is assisting in the assembly. (Keeps telling me the assembly is monkeys work :D )

 

Here is my build sheet: Gear_Build

 

Input 1 - 8 Ohm (2-Greenbacks)

Input 2 - 8 Ohm (2-G12T)

Input 3 - 16 Ohm (all 4 speakers)

 

Good cab wiring info here http://www.jumbosunshade.com/ezine/swd4.htm

 

swd4-4_16ohm_parallel_parallelseries.jpg

 

the cab joints will be held together with biscuits. Here is are some shot of the first days build..

1.jpg

 

2.jpg

 

3.jpg

 

4.jpg

 

 

More to come...

 

theDogger

 

 

 

Looking at your shop, takes me back to the days of working in a cabinet shop.

Spent many of my lunch hour, making guitar bodies for future use. Nice build and shop !!!!

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Then you'd have to add in the labor time and whatever speakers you'd choose.

 

I bought my Marshall slant 1960 with 4 Celection 75's for $450 at a guitar center used. I suppose if you used the same speakers yours would actually cost quite a bit more especially if you add in the labor time.

 

The grill cloth on mine was that crappy burlap stuff that they used that year so I spend another $25 for some Marshall Checkered cloth and just replaced it. Its a great cab for the price but deals like that don't come along every day.

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Back at it...

 

Here is a few picks of a Orange PPC-112 Clone that I am currently making and its coming together nicely, Going to cover this in black with tan grill cloth.

 

PPC112 Measurements

21 5/8" X 17 3/4" X 11 1/2"

 

Skinny" gold piping inside 1/8 x 1/8" dado

Dado cut 1 11/16" from edge of cabinet (to the center of the dado) and extending across panel and into front and back edges.

 

Skid measurements:

18 1/2" x 1 5/8" x 1/2"

 

 

17504348_983352715098849_6829882347847107647_o.jpg?oh=f2f13611bf6e299ed140fbec2ff1f912&oe=594E2F6B

 

17342546_984005708366883_879895311901522655_n.jpg?oh=5a3f29097d00123b3297a8f7c30fbce9&oe=594CE865

 

17505364_984349458332508_1107904317721361087_o.jpg?oh=27235431d59cfc4959a013edfefc4fc5&oe=595AA3D9

 

17504250_984349461665841_7658692738916585983_o.jpg?oh=f224b1d1a17ea5bcdb42e54f77209163&oe=5961167E

 

17621838_987373741363413_4265625489166373977_o.jpg?oh=5cdfd0633e35854422749f48b83889bc&oe=59553856

 

17635238_987373738030080_2540700964185741053_o.jpg?oh=1a7965ed7976f65add5014bd9beb05d4&oe=59683A71

 

17620436_987373734696747_4474479546457380187_o.jpg?oh=ab4c4500178b6ac22ca3b5ebfbd2a092&oe=596A6354

 

Tonight I will cut the 1/8"dado for the gold piping.

 

more to come...also you can check out all my other builds that I have dome lately here:

 

https://www.facebook.com/bfgcabs/

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