Hello all, I'm new to this forum and would really appreciate some advice.
A few years ago I was given a pair of speakers that a family friend had been using as part of a PA system. I had the idea of using these as a cab for a guitar amp. I wanted to know if this is a worthwhile project? I finally have the time and space to do it now.
As far as I can see all I really need to do is wire a jack socket to the back of the cabinet and connect to the amp head. Is this correct? How would I know which way round the wires go? I'd guess the brown wire is positive? Though as it looks like electrical cable would I be better swapping it for speaker wire or another type?
I was looking at getting a Micro Terror to pair it with so I think 8ohms is fine for that. The cabinets look homemade and are sturdy. A bit of reading online tells me the actual speakers seem like they are pretty decent. The back of them say "Celestion G12-80
impedence 8ohms, Rola celestion ltd, ditton works, foxhall rd, Ipswich".
I've attached some pics below (hopefully) and I was hoping if any experts on here could tell me if this is gonna work or be a waste of my time? Thanks!
Celestion g12-80 speaker cab conversion
Moderators: greatmutah, GuitarBilly
Celestion g12-80 speaker cab conversion
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Re: Celestion g12-80 speaker cab conversion
However you adapt the wiring, you need to make sure youre getting the polarity correct. Otherwise anytime you use a speaker in conjunction with another, itll be outa phase & youll loose all your depth. Yeah G1280s are a fairly balanced speaker that dont break up a lot under power.
As far as those cabinets, its hard to say... theyre insulated, ported & designed more for full range. They might sound pretty deep & loose from the size, & somewhat dead from the insulation.
Its no big deal really, just make an adapter & try em out! If they sound kinda flat, take the insulation out. If you dont love em, sell em!
As far as those cabinets, its hard to say... theyre insulated, ported & designed more for full range. They might sound pretty deep & loose from the size, & somewhat dead from the insulation.
Its no big deal really, just make an adapter & try em out! If they sound kinda flat, take the insulation out. If you dont love em, sell em!

Re: Celestion g12-80 speaker cab conversion
Thanks for the advice, I'll give it a go then!
I've ordered the parts online so hopefully have them and it all done in a week or so. Will come back and let you know how it sounds.
I've ordered the parts online so hopefully have them and it all done in a week or so. Will come back and let you know how it sounds.
Re: Celestion g12-80 speaker cab conversion
Thanks for your advice RIFF. After a bit of a pause caused by life getting in the way I got this cabinet sorted and ordered a micro terror head for it. It sounds great to me and I'm really enjoying playing through it all. I only use it for home practise so haven't had to crank it very loud and so far am leaving the insulation in but thanks for the tips if I later decide a bit more punch. Cheers!
Re: Celestion g12-80 speaker cab conversion
Cool, enjoy! 
