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#1
EDIT: Finished Project on Post#120

Hey guys,


Recently I wanted to build a guitar cabinet and a week ago my friend got a Marshall head amp that really wowed me. so now im looking for one myself but i dont have all the money in the world so i couldnt but a cab. So i decided to build one.

I want a 2x12 just because it's a LOT cheaper. one question: Would it affect the sound quality compared to a 4x12? also i was looking at another cab build thread and i was thinking for dimensions, how's: L-31", H-29", and W-15". does that sound right? i think it might be a little big as in i would have lots of empty space. I hope to start on Saturday so i'd like a quick reply on dimentions.

Thanks Guys!

Last edited by JCGGUITARS at Aug 2, 2012,
#2
well, a 2x12 will sound full and boomy but still be portably compared to a 4x12. however, simply put, 4 is just more.

the dinensions will affect the tone. thats part of making a good cab. that and build quality, speakers, and acoustics.

i would say the best points to consider are going to be overall design, build quality, and open/closed/convertible/semi closed back.

of course, do not cheap out on the speakers. given the quality and price, i would say WGS speakers are about the best value out there today. second is eminence probably
#3
Quote by ikey_
well, a 2x12 will sound full and boomy but still be portably compared to a 4x12. however, simply put, 4 is just more.

the dinensions will affect the tone. thats part of making a good cab. that and build quality, speakers, and acoustics.

i would say the best points to consider are going to be overall design, build quality, and open/closed/convertible/semi closed back.

of course, do not cheap out on the speakers. given the quality and price, i would say WGS speakers are about the best value out there today. second is eminence probably


how would it affect the tone as in, if i made it bigger, would the noise get beaffier.
#4
i guess it would.. with a bigger internal space. you have more air being moved around.

i recently had to plug my 5.1 subwoofer hole to cut the vibration.
would work on the same principle.. less space for air to move around. less bass would be produced & vice versa
#5
Quote by Dave8706
i guess it would.. with a bigger internal space. you have more air being moved around.

i recently had to plug my 5.1 subwoofer hole to cut the vibration.
would work on the same principle.. less space for air to move around. less bass would be produced & vice versa


sweet. so would the dimentions i want be good or too big?
#6
Wesbanez built a killer 2x12" on this forum... let me see if I can find a link, it contains the basic dimensions that you can use

here it is: https://www.ultimate-guitar.com/forum/showthread.php?t=1363496

EDIT: a cab with a nice wide open back is much less susceptible to tone changes from dimensions, if you've got ported or closed back then you start getting a lot of variation from dimension changes there's countless articles about it and you can basically mathematically tune your cab to a certain pitch emphasis, open back is probably much simpler in the end
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Last edited by GABarrie at Apr 13, 2012,
#7
Quote by GABarrie
Wesbanez built a killer 2x12" on this forum... let me see if I can find a link, it contains the basic dimensions that you can use

here it is: https://www.ultimate-guitar.com/forum/showthread.php?t=1363496


lol. i found this build on youtube. another thing, boy do i hat metric units (i use inches)
#8
google "351mm in in" etc. its very handy
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#10
i dont know enough about it to give advice, but yes the type of wood, thickness of wood, inner domensions, acoustics, speakers, everything.

i mean, all it does is make the sound come out. end of the signal chain.
#11
i just figured the dimentions out (about time) and i did adjust the height and width a little. so i'm probably going with: W-15" L-27" H-20"

I'm thinking of raising the heigh just because i've been looking at some other sites dimentions and they seem higher. so i'll see what i can get done today.

#13
im not sure which side the front is looks pretty clean minus the nails hehe
did you change your plans to a 1x12?

Edit: nevermind, it just looks really square so i assumed it was a 1x12.
Last edited by michaelbot9000 at Apr 14, 2012,
#18
can only find car audio/pa speakers by matrix, not good for guitar
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#20
not really an update but i cut the plywood for the front. im selling an amp so i can buy speakers with that money. here's a pics:



also bought the head amp. its a Peavey Vypyr 30 head amp and should be here Friday. A pic:



thats all for now. ill cut for the speakers tomorrow.

#21
one important thing is to know the impedance of your amp, that way you can build a cab with the same impedance so you don't fry your head.
#23
on the back of your amp (or in its manual) it should read 4 ohms/8 ohms/16 ohms, youll need a speaker with this same number so that theyll match
#25
actually, if your amp needs 16ohm or 4ohm you need 2x8ohm speakers, 8ohm needs 2x16ohm speakers
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#27
2 16ohm speakers wired in parallel = 8 ohms (parallel being both plus connections to the jack tip, both negative connections to the jack sleeve)
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#29
most good speakers come in 8 or 16 ohm varieties
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#31
personally I favour Governors, but they won't do metal... the Man O War will though, or the Swamp thing if you want something a bit heavier
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#32
you'd be good off getting a couple 45w or higher 16 ohm speakers, it'd give you some good headroom and match your impedance, and now I'm glad I brought it up seeing as you didn't know what it is
#35
Quote by JCGGUITARS
would 120w be too much for a 30w head amp

the watts on speakers is their maximum rating not a matching figure
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#37
Quote by JCGGUITARS
so it doesn't matter?

no it doesnt, it means the maximum is 120, the minimum is 0
#39
Quote by JCGGUITARS
sorry bout this but, i can use a 30w head with 120w speakers

yes you can.

You also may want to check out WGS speakers, they are really good (The people who sterted WGS worked at Eminence ). They are also fairly ceap even compared to Eminence.
Their Vetreran 30 and the ET65 are a great combo ( Celestio V30, G12-65 clones)
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#40
pretty much so long as the watts on your speakers is like 1.5 times higher than the wattage on your amp, you'll be fine with a 30W amp and any speaker from 45+ is going to work with it, within reason, so long as the impedance matches. and that box is lookin good so far. my only advice would be, if you have the skills putting it together with dovetail joints and wood glue would probably be more secure.
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