This is why you need both G12M and G12H Greenbacks in your 4X12! 

Hello Johan, this combination of speakers delivers indeed a full, rich, classic "British voicing" and beyond to metal, compensating the endemic lack of freequencies of each type, cheers!👌🏼

Great demo Johan! As much as I love my G12Hs I have to admit that adding the G12Ms to the mix sounds even better! Super.

The mix together sounds epic. I like the H's by themselves though over the M's. Great video as always Johan. God bless and riff on 👍😎🎸

Thanks, Johan. Incredible as always. With my JTM45 head I use a 2x12 cab with a G12M Heritage and a G12H (55) Heritage. It sounds fantastic!

I like the combo but I would choose the G12H if only could have one. Johan should be in a band . I like the simple little riffs he does.

The mix sounds AWESOME all around!

All 4 speakers together are KILLER !!😁🤟

The mix of the two totally nails it! Louder always tends to sound better too. Some (nice) L/R panning here for the two speakers listening in stereo. Still can tell they're a good combo.

I've been experimenting and using various speaker combinations for around 30 years now and yes. Cheers 👍

I appreciate your effort, but you have different mics on each speaker. Even if you could have done 2x2 (like 2x SM57s and 2x MD421's; one SM57/MD421 each on the two M's and one SM57/MD421 each on the two H's) that would have been better. That way we know it's not just the mic. Again, you're doing this out of your time so thank you but it really does make it hard to determine anything.

I have often thought how my 73 G12M would sound paired with a Vintage 30 in 2X12. Now you’ve got me thinking G12H is a great option too! Thanks For another great show!

They sound awesome together! WOW! They complete each other.

I have a 1x12 Marshall 1974CX cabinet with the “aged” 20W Celestion G12M (not 25W) and I also put a vintage 1977 30W Celestion G12H 55Hz in my 1x12 Marshall Studio Vintage cab. Running my Marshall Studio Vintage head through both cabs sounds glorious and huge!

The G12M combines great with many speakers, it's pure gold! I like combining a G12M Heritage Series with a modern G12T-75 to add thump and a bit of harshness to the top end, while the G12M fills up the midrange. One of the reasons of choosing this they have almost identical sensitivity, so no speaker overpowers the other.

I vote for any speaker as long as Johan is playing 😀 thank you!

Welcome back, Johan! With the guitar on its own, the combination of both speakers is absolutely the best here - and not as extreme as mixing the M's with JBLs or EV's!

Fantastic video as always, Johan. The only thing I would consider is matching the volumes of the M and H speakers soloed with the combination. I have a 4x12 with this configuration (in a x patern) and is my favourite sounding cabinet

Thanks for the video I.had the idea of doing the same thing with the 55 hertz H's and some M's. Your video helped me make up my mind. Thanks again!

Love your videos. I've learned so much from you. Thank you Johan.

G12h and g12m together are amazing full on .yeaaa love it.nice upload from the king.👍👍👍👍🌷🌷🔥🔥🔥🔥

You've got the most pleasant videos Johan, greetings from Uruguay!

Sounds beautiful, dream cab!

Excellent video… you answered one of my questions… thanks for share…

Thanks for the great video as always. Good combo.

Hi, Johan! Glad to know, that you are ok now, but be careful: that virus making some troubles after it's gone. I wish, you will have nothing like that in the future. The best combination is H and M together. Whyle H is more metal sound. Stay healthy and keep yourself safe! Siegfried

The ultimate speaker combo

Oof, pretty raunchy Johan!🤘 Complement each other nicely and fill out the sound👌

Definitely better when the 2 speakers are combined. I use a Modeler, and checking the Cab Specs against the Real Cab Speaker Specs has helped me dial in a much more accurate sound to what I want. The Modeler Cab Specs could vary widely due to how the unit might be used, such as in the Studio, Home, Live, Headphones, going out to a real Speaker Cab, etc. Thanks

Nice video. Love heavy Johan!

Would love to see this combination in a side by side comparison of the Hiwatt Purple Back Fane speakers.

Now you gotta combine all 3! Please, the light medium and heavy magnet versions!

Great combo! Thanks :)

Yep, the combination of the two when you played the “kiss chords” - sounded just like them

Great video Johan! I love your channel. What combination would you recommend for Blackback's 55Hz? Maybe you will make a similar video? It'd be great! Rock on!!!

I have the old small magnet versions in my half stack. 30 watters sound great! Please so a video on those!

Or even better, a half stack of each! Light ,medium ,and heavy magnet!

Wow they sound awesome combined! I don't really like the G12M on their own, the G12H are very nice even on their own

There were a few riffs where I preferred the M to the H, but I think the H sounded better than the M alone for most of what you played. Both together always sounded better than either one alone though, no matter what the riff!

Ive gone to 4×10. As much as i loved 4×12. I still like to listen

how did you know that I was looking to pair my g12h (412 b cabinet) breather the ain’t no doubt now! most greatful

That is what I have in a 2x12; one G12H 75Hz Heritage and a newer UK made G12M 25w, it has a sensitivity of 98db which works better then the 96db sensitive G12M heritage.

HUGE sound! \m/

Got it in my 2x12. A happy accident. I have 4x g12m in my 4x12. So because its a 2x12, wanting to get 2x g12h Anniversary for that bass response. Accidentally ordered only 1 g12h, and instead bought a g12m. I was onpy concerned abiut wattage with my 50watt head. But, i love it. Its ballsy af with the sv20h and origin 50h. Which is what i wanted for the 2x12. Not changing my greenbacks in my 4x12 though to add the g12h. Both cabs sounded fantastic even when they werent broken in.

I love the G12H and Weber Silver Bell in a 2x12.

Hennes & Mauritz speakers are the best!

Damn. That G12H is straight metal 😂🤘🏼

Hey Johan. Thanks for the demonstration. It's kind of possible for me to compare your sound in this video to mine. I have a cab equipped with G12M75, T1221 '73 greenbacks and G12H75, T1217 greybacks with R/I cone, January 74 and a Marshall Haze amp. Somehow it also gives a different, more rich feedback from the unpotted pickups in my R8; I bet you have tried it, though it's not a part of the recording. I clearly hear a difference in my cab with 4 x G12M to the other. I know, we both know the R/C cone is different from Pulsonic cones and that adds to the equation too. It's would even become a more rich experience if you visit your friend Pleximaster and connect the cab to a JTM45 with a GZ34; maybe a theme for future reference. Ha' det bra, Johan

What's the HZ of the G12H's used in this video???

1:55 ACE!!!!!!!!!!!

I liked the G12M best

Awesome 👌 sounds really gr8 you get the best of both worlds. Are these all close mic tests? If so,, Would it be possible to do a room mic test all g12m all g12h then g12h and g12m mixed like you have here.. I am imagining the room sound you are hearing would be quite a difference..

espetacular sound...tkss

thanks for the video! Do you recommend placing the cones obliquely or, as you did, the two G12m above and the two G12h below?

I’d love to hear what a 2x 12 setup would sound like only cause that’s exactly what I have. I know a 4x12 sounds massive

This is so timely for me. I've had a 2x12 loaded with a modern G12M Heritage and a G12H30 55hz heritage for about a year and really like it. I came up with another pair of G12H30 55 hz and a pair of G12H30 75hz, put them all in a 4x12 and like it less. Now I need to try the G12M with each of the 75hz and the 55Hz in the 4x12. I guess I can find out if the 75hz cones offer something better than the 55hz cones.

Without watching the video till the end I guess from my experiance that the Greenbacks will add some nice midrange and make it sound huge. G12H30 speakers love to be paired with speakers that push some mids.

I cannot disagree with you on this one, Johan. We all just have to follow suit. Would be interesting to hear this comparison in a mix. Maybe you can "invite your brothers" to play bass and drums again.

Does the G12H sound similar to G12H30 anniversary?

👍👍

Most Dope 🍻🤘

Hope you had a good break Johan! The combination definitely wins as you say. Same for the neck pick-up?

The more modern metal riff (2:54, 5:39) sounded better on the G12H but the G12M sound better on more classic rock riffs (5:10, 6:24). Perhaps it's just my ears are accustomed to certain tones for certain styles. or is it that modern riff are more low end focused?

H’s will tip the cab like Fred Flintstone getting ribs at a drive in 😂🤣🙃

Really interesting, and sweet sweet riffage as always 😎🤘. If you were choosing something to match the G12M25, would it be the G12H30, Marshall G12 Vintage, or Vintage 30?

I guess you put both Ms on top as the Hs are 2 dB louder. I used to have a cab with Hs and Ms in X-pattern and they were perfectly balanced. Probably due to the more prominent mids of the Ms they appeared as loud as the Hs. Great video btw...

As a matter of fact I'm doing this in one of my cabinets.

Aren't the mic's on the upper speakers closer to the edge of the cones than the bottom mics? Seems to me that would affect the tone of each.

Nice video! I'm also curious about the G12M&H creamback speakers. How do they work together? Or maybe g12m creambacks with g12h greenbacks.

sounds like it can djent, considering V30 really dominates for that style/genre of music.

I wonder if the M and H combo in the SV212 would be a large improvement to the stock speakers. Maybe help it track a little “bigger”. Would be awesome if you’d show us! 🙏😉

Are they 55hz or 75Hz? Thanks

It sounds wonderful.it might not be fair to compare 4 speakers with 2 though i suppose the perfect comparison would be with 1m with 1 h then 2 medium then 2 heavy . Anyway clearly they sound great together. Nice heavy riffs too.

Johan, Thank you for the video. Would it make any different (in the room of course) if you criss crossed the speakers instead of top/bottom? Just curious of your experience.

Do you think this would work as well with one of each in a 2x12 cabinet?

They definitely work well together. In your opinion would the 55hz 12h30 be less harsh but possibly not cutting enough for the 4x12 combination?

H&M how swedish of you! 🤣

How would this combination sound with blackbacks instead of greenbacks? I wonder if it would sound even better in a mix

Is that the original magnet cover on the 68 G12M?

Probably you have answered many times but what model/year is that SG? Stock pickups?

Johan, is there a big difference in tone between an 8 and 16 ohms speakers?