[krall]

I have a speaker related question. I picked up an '83 CSA (Canadian export) Marshall JCM 800 model 4104 (2x12 50 watt combo) a little while back. It's currently loaded with a pair of new-ish Celestion G12T-75's (8 ohms). The amp originally came with a pair of Celestion G12-65's. I'm ready to post want ads for a pair of era correct G12-65's, but was wondering if Marshall originally put 8 ohm or 16 ohm Celestions in their CSA 2x12 combos. I'd like to know before I begin my search.

If any member on this forum has this model of amp with original speakers, can you relay to me what ohms they are?

Thanks.

 

[cboutilier]

What impedence is stated on the amp?

 

[krall]

What impedence is stated on the amp?

It states 4 ohm minimum, but can easily switch to 8 ohms.

 

[colchar]

I have the 2203 head, not the combo, and use it with a 2x21 loaded with G12-75 Creambacks and love that combination. Not that that matters for your purposes.

 

[krall]

2x21 loaded.

Those are big ass speakers! lol

 

[colchar]

Those are big ass speakers! lol

Nice catch. Damned typos!

 

[BSTheTech]

Good luck finding the originals. It took me awhile to find mine. Ask for photos with the serial numbers. If they’re original they’ll probably be faded/hard to read.

 

[Budda]

Given I sold an 80's JCM800 412 with those speakers for less than $500, you should be able to find the JCM800 212 cab with those speakers, and then just swap them.

 

[krall]

I just found out that they were 8 ohms. Thanks!

 

[gtrguy]

Regarding the G12-65 speakers- keep in mind there are a few different versions. I would avoid the versions with the 444 cones, those ones don't sound as good to me. Go for the 1777 cones.

 

[krall]

Regarding the G12-65 speakers- keep in mind there are a few different versions. I would avoid the versions with the 444 cones, those ones don't sound as good to me. Go for the 1777 cones.

Yeah, I already knew about the 1777 being the one to get.

 

[jb welder]

I just found out that they were 8 ohms. Thanks!

Are you sure about this? That means you shouldn't plug in another cap while the internal speakers are in use (assuming it's wired for 4 ohm total).
Could someone have meant the pair is wired for a total of 8 ohms?