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Old 11-02-2012, 09:06 AM   #21
OneHappyCamper
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That one is entirely up to you, as long as the total impedance is 4 ohms or higher. I'm thinking the both cabs to head solution is a bit more robust, because if the cable on the first cab craps out on you, in the daisy chain setup (amp to cab1 to cab2) you'll lose all sound where in the both-cabs-to-head setup you'll still be left with the bottom one.

That's probably not that critical though, those cables don't really move around so I think there isn't a big chance of them breaking.

Hope I'm being helpful
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Old 11-02-2012, 09:11 AM   #22
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ok so if they both go to the head how do i wire another output jack?
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Old 11-02-2012, 09:18 AM   #23
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We've reached the end of my expertise here

Try getting a hold of a two output amp and opening it up to see what's inside?

EDIT: Looking at this JCM 800 schematic, the outputs are just two parallel jacks.

http://mhuss.com/MyJCM/JCM800_2204.pdf
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Old 11-02-2012, 09:33 AM   #24
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ok im a noobie at electronics so all that means nothing to me all i know is i have two plugs in my amp that went to the speaker. i could try cutting them and ataching another wire to each end and connect it to another output jack. that might be sketchy
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Old 11-02-2012, 07:30 PM   #25
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Bump! anyone
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Old 11-02-2012, 07:58 PM   #26
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You have two plugs? Like spade connectors or 1/4" jacks? If they're jacks then just plug the two cabs in and call it a day. If it's just the spade connectors wire it like this:


The jack on the right is a shorting jack, notice how the thingy shorts to the tip until you plug a jack in. It is important that the first jack (speaker a) is isolated from the ground. Meaning, do not mount it in the steel chassis of your amp head unless it's a plastic jack or it has a bunch of plastic or something isolating it. Otherwise the second speaker out will not work (it'll be shorted).
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Old 11-03-2012, 07:49 AM   #27
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im lost
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Old 11-03-2012, 02:53 PM   #28
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I'd just daisy chain the cabs together. Running one cable to the head. The chances of one cable failing and you losing both cabs as someone mentioned is highly unlikely. Especially with decent cables.

But.... If you really want to have 2 outputs you can wire 2 jacks in parallel. Like this -


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Old 11-03-2012, 04:09 PM   #29
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exactly what ill do. Thanks!

Updates!

will work on the next speaker cover thingy later. stuff coming early this week so more progress should be coming soon!
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Old 11-09-2012, 09:23 AM   #30
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aright planning to tolex monday because it will be in the 60's (its in the 40's now). have most of the stuff i need. i need another pair of handles grill cloth and other minor accesories.
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Old 11-10-2012, 09:07 PM   #31
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Head amp all tolexed. made a mistake on a cab so i'll be fixing that and working on cab#2. looks good so far. head currently:




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Old 11-12-2012, 08:25 PM   #32
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hey guys.

first off i got a question. i wired my head output jacks in parallel i think. it doesnt work. but it might just be me because i drilled the hole for the second jack really close to the other so it's just barely touching. think thats the problem but here's what it looks like.



while im here:


the joint reeeaaallly sticks out. my mind must have gone blank cuz i didnt do it on the bottom like i planned.
help me out guys. i need some liftin up
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Old 11-13-2012, 09:18 AM   #33
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BUMP!

anyone? c'mon guys this thread has to be more active
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Old 11-14-2012, 08:00 AM   #34
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it must just be that nobodys on well i have a new problem. the jacks work but when i install them to the back of the head it's just screeching. even if one is in the back and one is floating somewhere. PLEASE HELP YOU GUYS!!!!
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Old 11-21-2012, 07:58 PM   #35
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man six posts in a row! heres an update!
guess whats different?




looks good! so now all i have to do is make a frame for the cabs for grills, cut down the backs for tolex, fix cab #2, tolex cab #2, and logos which a friend of mine is designing.
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Old 12-10-2012, 08:22 PM   #36
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well guys it's been a disappointing thread but successful build.
heres the finished product:





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Old 12-10-2012, 09:47 PM   #37
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Good Job! Love the purple.
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Old 12-11-2012, 09:22 AM   #38
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thanks! i do to.
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Old 12-11-2012, 09:25 AM   #39
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That looks really good man, pretty good quality and lovin' the purple!
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Old 12-11-2012, 02:51 PM   #40
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Dude, that rocks. I like the purple as well.
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