The Two Different Sounds of 1980s Marshall Amps! G12T-75 vs G12-65 

When talking Celestions it's funny how many people dismiss the gt12-75 outright yet in shootouts it pretty much always wins. If Marshall used a "cool" sticker or painted magnet like a greenback it would have become the holy grail "must have" speaker of the era.

G12-65s sound better. But we all knew that. ; )

65’s of course!

No doubt. The T-75 has a lot more life energy and sparkle. Which does not mean that a '65 played by Johan is a dumb speaker ...

Modern g12 75 sound so fizzy and mid scooped. These old ones sound good. Esoecially with mid heavy amps like marshalls.

These two sound remarkably close-I'm listening on good speakers. The 65s have a SLIGHT more present midrange, but it's negligible. I prefer modern T75s to be honest, because they really do well with modern amps that have a lot of low-mids..it helps clean them up and sharpen the focus. That quick transient while still having a healthy amount of deep low-end is also a huge plus

👍🇬🇧❤75's.....are the best speakers ever designed !!!!!!!!!

I liked the 75 better

Thanks for doing this video! The 'Internet Truth' is that the T75 is garbage, and you proved that wrong today!

hate to say it but 12t hands down its more scooped

These speakers were essentially designed to deal with problems starting to crop up in the 70s and 80s: more gain was demanded and more was produced by diode clipping amps, amps, pedals, rack units, ceramic pickups, which meant some ugly harshness was coming through. The 65s have the wonderful trick of flattening out the harsh peaks and make cream, the 75s are great "live" speakers which saturate very well at high volumes, not so strong in the studio though with somewhat of a hole in the mids.

This is literally the exact comparison I was looking for! You have a video for everything! You are appreciated - thank you for all you do!

I love them both, and have played both. The G12T-75 gets extra credit for being so underrated and having that unique twang on the low strings, especially in a 4x12.

As always, Johan creates a very informative comparison video. Owned many pieces of late 1980s gear with the G12T-75s on board. This video made me re-evaluate their relevance (without the spandex and hair spray). That said, after being schooled by your numerous speaker demos, I recently scored a pair of 1969 Pulsonic G12Ms of my own. They are simply amazing... and without your videos, I would never have known what I was missing. Your loyal fans appreciate you, sir!!!

Urban legend has it that the vented back G12T-75s were just the last iteration of the G12-65.

The 75 sounds a lil extra nice to me... But BOTH sound amazing! Thank you Johan**

Excellent as always Johan! Amazing how different a speaker can make an amp head sound. We need to start a petition for a little Marshall emoji! Have a great weekend and Keep it on 10! 🤘🏻🎸🔈- Kurt

Hello, Johan! Hoping all is well! Love the channel! I have a Master Model 50w Mk 2 Lead Red with white piping. I bought it new in 78. Used it alot in club gigs in the 70s, --2000s. I have had some problems over the years but all have been addressed. I have other great sounding amps, but I think it will always be my favorite. Keep up the great and interesting work!

Thanks for the comparison Johan. I picked up a JCM900 cab last year with G12-75's in it. Great for 80's hard rock tones and reminds me of 80's AC/DC (in a good way), no matter which head I play through it.

Love them Both! Thanks for using the Tele! Be Well and have a great weekend Brother!