Marshall cab experts what year is my cab?

[M Fowler]

Saw this 412 cab at my local guitar store and asked if it was for sale and yes it was on consignment so I got it.

I'm not a Marshall expert so wondering if you could ball park the year for me?

Mark

Marshall 412 front.jpg

Marshall 412 back.jpg

[Reeltarded]

Ok, so the lower left front badge says JCM 800 and it appears to be 84-85 ish but up to the end of umm.. I dunno it looks exactly like the features on my quad of late 80s 800s..

We know it's full of 75s and previous cabs with 800 series have 60s.. it's post 82 because the features are slightly different..

The tag.. I see the ghost of the serial. Brit domestics had tags.. but I have rarely seen that tag on an export.. different tag.

[Scumback Speakers]

If the speakers are original to the cab you can date it that way by the date codes. In general those 300w plate cabs didn't show up until the G12T-75 speakers were being used, which would put it around 83 at the earliest.

Be advised that's not a hard/fast rule. I've seen G12-65 speakers in cabs marked 300w, so the best way is to take off the back panel and look for the date codes on the speakers.

[Reeltarded]

^^^^ I meant 65s and Jimz roight!

[M Fowler]

Thanks guys I will pull the panel off and see what is lurking in there hopefully not an image of Reeltarded.

Mark

[Roe]

The 1985 cabs I have seen were 8 ohms without the label in the lower left corner. This cab seems a little newer

[Reeltarded]

Thanks guys I will pull the panel off and see what is lurking in there hopefully not an image of Reeltarded.

Mark

hah! You aren't that lucky! My images are given to heads of state and graduates of lesser degrees and once my image was stolen and replaced with a copy!

[M Fowler]

I'm to tired this morning to get started.

Myles you need to get those Make Music Great Again posters available soon, my music feed is suffering something awful.

Mark

[M Fowler]

The 1985 cabs I have seen were 8 ohms without the label in the lower left corner. This cab seems a little newer

Roe don't you have a history of Marshall data sheet somewhere?

Mark

[martin manning]

Pretty extensive list here: http://www.marstran.com/cabdata/cabdata.html

[M Fowler]

Thanks Martin that helps.

I think Roe did a complete listing of amplifiers.

If I find some Marshall JCM800 2204 or 2203 heads I want the earlier version with pots off the board and the better boards in my opinion.
Some of the JCM800 2204's I've worked on had pots mounted to board and the boards were not as good as the previous generation in my opinion, which isn't much.

Mark

[Reeltarded]

I can't understand why it took them 7 years to simplify the master volume models into the 800 series. The early MV amps were.. umm.. not the greatest sound on Earth.

After messing around with stock 4-holers and realizing all it took was moving a wire to the input resistor on the other channel to make hellfire.. it seems like disco was very unkind to Marshall. lol

I love hijacking threads. Has anyone else made grounded plugs into gain keys? You can put caps, resistors, or diodes in there. The original plugins.