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Old 04-24-2015, 10:02 PM   #1
clustercuss
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2x12 build ---Pictures for you

I've wanted a 2x12 cabinet for a while now. I like the size of the Mesa rectifier 2x12 but I wanted something that will match my Marshall 1960a cab. The Marshall 1936 cabs are too big IMO. Plus my local music store wants $729 for them. I got a smokin' deal on some speakers and my build began. The cabinet I am building is 29 3/4" wide (1960 width), 14" deep (1960 depth), and 17 1/2" tall (Mesa 2x12 height). I started out with 5/8" Baltic birch plywood. I glued up the sides to the top and bottom with butt joints and then added dowels for strength. (I know you purists will say it should be done with box joints but I wanted to try something different and this will be more than adequate) Dowels are spaced 1" apart on every joint and are 1 3/4" long by 5/16" diameter. This means I have 13 dowels per joint. That's 52 dowels in total keeping this cab together.

This first pic is the box glued together and the dowel holes drilled.
Second pic - dowels glued in to one joint.
Attached Images
File Type: jpg cab1.jpg (43.1 KB, 69 views)
File Type: jpg cab2.jpg (46.9 KB, 63 views)

Last edited by clustercuss : 04-24-2015 at 10:20 PM.
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Old 04-24-2015, 10:12 PM   #2
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More pictures. I'm mid build when starting this thread so you get lots of pics/info up front

Trim pieces that the back and baffle board attach to are glued in. They are 3/4" x 1" pine. Note the angle cut in the back trim pieces. This is to allow the baffle board to slide into the cab. Handle holes are cut into the sides and the edges of the cabinet are all rounded over. That is a 3/4" roundover to match up to Marshall corners.
Attached Images
File Type: jpg cab3.jpg (71.1 KB, 56 views)
File Type: jpg cab4.jpg (43.8 KB, 44 views)
File Type: jpg cab5.jpg (58.1 KB, 49 views)
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Old 04-24-2015, 10:19 PM   #3
clustercuss
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Caster cup routs are done (pic1)
Test fit of caster cup (pic2)
Test drive with my 4x12 (pic3)

Everything fits exactly how I want it. Tolex, grill cloth, and piping is ordered. I'll be working on the baffle board in the meantime and will post more updates as I go.
Attached Images
File Type: jpg cab6.jpg (42.4 KB, 51 views)
File Type: jpg cab7.jpg (43.1 KB, 51 views)
File Type: jpg cab8.jpg (71.0 KB, 65 views)
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Old 04-28-2015, 12:11 AM   #4
JakeWest187
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That's awesome.
I really wanna build a 2x12, but I'm just too much of a pansy to give it a shot.
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Old 04-29-2015, 03:54 PM   #5
Jeffh40
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Cool pics. What speakers did you get for it?
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Old 04-29-2015, 08:33 PM   #6
dspellman
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Quote:
Originally Posted by JakeWest187
That's awesome.
I really wanna build a 2x12, but I'm just too much of a pansy to give it a shot.


It's really NOT difficult. I put together a pair of them in a couple of days (borrowed a friend's wood shop for the cuts, rented a ton of large clamps, built a small fixture to keep things square.

Then I did NOT tolex the suckers (I *can* do that, and I've done real lacquered tweed once, but tolex no longer makes sense to me). I took them to a shop that hosed them down with LineX (google it). If you're going to take a cab on the road, this is really the way to go.

My cabs were actually wired in mono/stereo, with a pair of Eminence Delta ProA speakers (some heavy magnets on those suckers) and a pair of 1165 piezo tweeters in the upper corners. Total interior space was about 3.5 cu feet, and there were a pair of 4" diameter by 4" deep tubular ports in each cabinet. That tuned the cabinet for about 52Hz (that's pretty close to the resonant frequency of the Delta ProA's) and gave me some serious bottom end on tap. Most 12" guitar speakers are rated for 75Hz but have fallen well off below 100z. The piezo are much less sensitive than the Deltas, but they'll handle up to 200--400W each. They provided a bit of sparkle and definition when needed (an L-pad allowed me to dial them off altogether, though I never did that). Each cabinet was capable of handling up to 800W, and the pair were driven initially with a Carvin TS-100 (50/50W tube power amp) and eventually with a 1500W solid state power amp.

The corners were held together with Loctite's PL Premium glue, with a few brads assisting during the drying process. After several years on the road and some pretty brutal handling, no glue join has shown signs of opening. Under conditions that would have torn tolex completely off the cabinets, the LineX looks like new (well, a bit of scuffing here and there from the most severe handling). No tears, no rips, no dings, no dents. Structural stuff.
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Old 04-29-2015, 10:06 PM   #7
clustercuss
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^^ Cool idea with the LineX. That stuff is bomb proof. I will be using tolex on this cabinet because I want it to match my A cab. The speakers are going to be a Hellatone 60 and a G12h30.
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Old 04-29-2015, 10:11 PM   #8
clustercuss
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Baffle board is now finished. It is made from 5/8 baltic birch ply. The trim pieces around the edge are 1/4" x 1 1/4" pine. First 2 pics are mid assembly. Third pic is the finished baffle.
Attached Images
File Type: jpg baffle1.jpg (67.7 KB, 35 views)
File Type: jpg baffle2.jpg (51.1 KB, 24 views)
File Type: jpg baffle3.jpg (59.6 KB, 34 views)
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Old 04-30-2015, 12:17 AM   #9
dspellman
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Quote:
Originally Posted by clustercuss
^^ Cool idea with the LineX. That stuff is bomb proof.


Quite literally, I guess. The military is using it for anti-explosion and anti-spalling coatings for both vehicles and buildings.
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Old 04-30-2015, 11:20 PM   #10
clustercuss
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Tolex, piping, and grill cloth came today. I've been in the shop for 2+ hours. Pics coming soon.
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Old 05-01-2015, 10:08 PM   #11
clustercuss
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Pictures from last night's tolex-ing. I did not find this easy, but I am pleased with how it turned out. I wrapped the box with the 1 piece method.

1st pic - first side glued down
2nd pic - getting ready for the seam
3rd pic - seam is done
4th pic - working on the front corners
Attached Images
File Type: jpg tolex1.jpg (75.5 KB, 28 views)
File Type: jpg tolex2.jpg (62.3 KB, 25 views)
File Type: jpg tolex3.jpg (79.4 KB, 22 views)
File Type: jpg tolex4.jpg (80.4 KB, 28 views)
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Old 05-01-2015, 10:10 PM   #12
clustercuss
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A few more:

pic 1 - a view of the back
pic 2 & 3 - Views of the front.
Attached Images
File Type: jpg tolex5.jpg (58.8 KB, 24 views)
File Type: jpg tolex6.jpg (79.6 KB, 25 views)
File Type: jpg tolex7.jpg (75.1 KB, 31 views)
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Old 05-02-2015, 07:13 AM   #13
xnameisonx
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Wow. That's looking great
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Old 05-12-2015, 10:09 PM   #14
clustercuss
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Baffle board is done. Grill cloth installed. Back panel is done too. Here is some more pics.
1st pic - front view
2nd & 3rd pics - back view
Attached Images
File Type: jpg back&baffle1.jpg (83.0 KB, 27 views)
File Type: jpg back&baffle2.jpg (68.5 KB, 18 views)
File Type: jpg back&baffle3.jpg (48.9 KB, 20 views)
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Old 05-12-2015, 10:14 PM   #15
clustercuss
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Piping is done too. It gets stapled to the back of the cabinet front cleats. 1st picture is of the inside of the cab with piping installed. 2nd pic is the piping corner seam. Caster cups and corners are installed too. All that is left is final assembly and wiring. I'll get some pictures up of the final product when I'm done
Attached Images
File Type: jpg piping1.jpg (60.2 KB, 27 views)
File Type: jpg piping2.jpg (52.3 KB, 25 views)

Last edited by clustercuss : 05-21-2015 at 10:33 PM.
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Old 05-21-2015, 10:41 PM   #16
clustercuss
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Speakers mounted, wired and baffle board installed. I wired this cab in parallel and used female blade connectors to connect to the speaker terminals. Wires are soldered to the input jack tabs. I left enough wire going to the input jack so that the back panel can be opened up and laid flat. Plus I added a small wire clip inside the cabinet to prevent any possible pulling on the speaker terminals.
Attached Images
File Type: jpg speakers.jpg (67.2 KB, 17 views)
File Type: jpg speakers2.jpg (49.0 KB, 17 views)
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Old 05-21-2015, 10:47 PM   #17
clustercuss
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Final assembly is done. Some pictures for you below.
Attached Images
File Type: jpg finished1.jpg (74.6 KB, 22 views)
File Type: jpg finished2.jpg (73.8 KB, 20 views)
File Type: jpg finished3.jpg (85.0 KB, 17 views)
File Type: jpg finished4.jpg (76.6 KB, 20 views)
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Old 05-24-2015, 12:36 AM   #18
CodeMonk
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Looks pretty damn good.
And a shameless plug for my own work, here's my cabinet build thread : http://www.ultimate-guitar.com/foru....php?p=26372230
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Old 05-24-2015, 07:42 AM   #19
clustercuss
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^ Nice job on that build. Looks great.
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Old 05-24-2015, 02:34 PM   #20
Dave_Mc
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nice work, that looks great
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