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Old 11-13-2012, 01:34 PM   #1
Unholy.Daemon
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Using a Combo Amp as a Cab

Hi all, was just wondering.. I have a Kustom 30W practise amp that I don't use, and I'd like to be able to use it as a cab for my Randall head. However, the only inputs on the Kustom is a guitar input and CD/Tape input.

Is it safe to run my head into the CD/Tape input? The impedance on the speaker matches the output on the head, so that shouldn't cause a problem, but I wanted to check with people before going ahead with this.

Yes, I am in the market to get a new cab, but I can't afford one right now and probably won't be able to until at least january, and I don't want to let my head sit there and do nothing, so I'd appreciate any help.

Thanks all!

TL;DR - can I plug my head's output into the practise amp's CD/Tape input as long as the speaker impedance matches?
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Old 11-13-2012, 01:36 PM   #2
NotTheMessiah30
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Nope. Afraid not. If you disconnect the speaker and wire a jack to it you could connect your head to the speaker directly, that would be the only way to do it.

EDIT: If you were to try it the way you're thinking you'll cook something for sure.

Last edited by NotTheMessiah30 : 11-13-2012 at 01:38 PM.
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Old 11-13-2012, 01:37 PM   #3
Unholy.Daemon
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Originally Posted by NotTheMessiah30
Nope. Afraid not. If you disconnect the speaker and wire a jack to it you could connect your head to the speaker directly, that would be the only way to do it.


ok, thanks the the info!
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Old 11-13-2012, 02:07 PM   #4
fly135
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The CD input impedance on the combo does not match the head. And the signals levels don't match either. You need to disconnect the speaker wires on the combo and make a speaker cable with 1/4" to plug into the head and either solder the other end on to the combo's speaker or get some crimp on spades from the auto parts store (or harbor freight) and attach them to the end, then push on the speaker.
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Old 11-13-2012, 02:30 PM   #5
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Speaker wire + female disconnects + phone jack would do the trick. Easier than soldering.
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Old 11-13-2012, 02:51 PM   #6
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http://www.musiciansfriend.com/acce...m-speaker-cable



that is the easiest way i know how to do it.
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Old 11-13-2012, 03:50 PM   #7
tubetime86
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^Wow that's cool. You can make it cheaper obviously, but it's great to have a ready-made solution for these threads.
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Old 11-13-2012, 04:28 PM   #8
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Damn, gumbi. That's a nifty cable.
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Old 11-13-2012, 04:52 PM   #9
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someone posted that solution a while back, makes things easy if you can't solder and aren't all DIY. 20 bucks ain't too bad either.
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Old 11-13-2012, 05:09 PM   #10
tubetime86
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It ain't good by a long shot though. I've got all the shit to make that sitting in a box somewhere... The total for parts can't be $7.
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Old 11-13-2012, 05:48 PM   #11
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Quote:
Originally Posted by gumbilicious
http://www.musiciansfriend.com/acce...m-speaker-cable



that is the easiest way i know how to do it.


i use ones like that from award session, they make them to order for you in the UK. They're pretty cool, though they can be a bit tight with some speakers (seems to be worse with eminences, i'm guessing they're made to fit celestions). But yeah, it's a handy way for lazy people like me who don't want to solder to get round soldering.
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Old 11-13-2012, 06:00 PM   #12
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Is there a way of using it in a 212 configuration? Never wired a cab before, but I'm guessing you connect one end to each speaker and bridge them both with a wire?
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Old 11-13-2012, 06:03 PM   #13
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i guess if the amp has two speaker jack sockets you could just do it with two of them

granted not so much if it only has one

however, award session also makes these which i'm guessing would work for a 2x12 if you only had one speaker jack. granted, more cost, but if you really don't want to solder...
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Old 11-13-2012, 06:23 PM   #14
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Soldering is sounding like the better alternative.

Especially if you already have the tool and the solder.
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Old 11-13-2012, 06:36 PM   #15
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yeah

though it's nice to have the option if you can't solder. i mean... learning to solder is cheaper in the long run if you're doing a lot of soldering. if you only need it for two speakers, though, and don't already have soldering kit, buying those cables probably costs less
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