Thanks so much Doc! Wonderful idea! This is just for a direct and immediate comparison☺️ 05:48 Celestion H30 Anniversary 07:09 Celestion M65 Creamback 08:19 Z12 09:27 Celestion Alnico Blue 11:22 Celestion Vintage 30 13:03 Celestion Greenback

This is great Z. So much experience goes into these!

Choosing by db efficiency for home or stage environment is new to me never heard speaker choice discussed this way. Thanks for opening my ears this way!

Another great video. As a fellow Engineer I clearly hear the passion and training come through in the quality of instruction and detail. Some of, if not the best explanations on amplifiers anywhere! Thank you Sir! The Z-Best sounded spectacular!

Fantastic video Dr. Z. Very informative, much appreciated.

Hey, Dr Z is BACK! Good to see ya!!!

This was a very helpful video. Thanks!

Great video. Was waiting for one of these. Thanks for doing. The Greenback does it for me. Really warm sounding.

Superb video. Thanks for taking the time to make it. I play my Maz 18 MK ii through two greenbacks and couldn’t be happier.

This is the most informative speaker comparison ever. Thanks for sharing your knowledge!

This was awesome! Thanks!!!

Good to see the Doctor back. These AMAs are some of the best of their kind on the Internet

One of the best speaker comparison and assessments I have heard. Very informative.

Very good and informative video, helps a lot to understand most famous speakers.

Thanks for sharing this, I have a Maz 18 with a 30th Anniversary and this was helpful in getting a sense of what a speaker swap would do to the sound of my amp.

Thx Doc, great demo & explanations!

Great video....... On my fender vibrolux reverb I used Emenince Lil Buddy 10 inch speakers. I had read they run a little darker tone but Fenders are so bright of an amp that they went very well with it. They seem to tame that edge of brightness....

Thanks Dr Z ...... Great to hear from the master amp builder himself 😉

Doc, thanks for all you do. Not only do you design and build great amps, your customer support is the best in the business and you share your knowledge with the world. Much respect!

I bought a used SRZ 2 years ago and a used Z Best 2x12. I fought with with the sound of the amp for quite a while because there was just something missing to my ears, I actually almost sold it. I decided to start messing with different speaker combinations and finally settled on a Vintage 30 in the bottom and a Creamback M65 on top. Man did that change the sound to what I was looking for, it completely changed my mind and I a absolutely love how it sounds now. Speakers really do make a difference.

Bloody good to have you back Dr Z. Unfortunately I had to sell my Z recently but that's put me in the market for another, hopefully a another MAZ 18 or a Z Plus.

Great video, Dr. Z! For those wondering how big a difference speaker efficiency can have, I swapped one of my AC30TB/6's greenbacks for a AlNiCo blue years ago. Since then I've regularly heard comments from sound guys that my amp is significantly louder than other players with two greenbacks in their AC30's of the same production years.

love AMA !!!!

Hey Doc...first time today put my Maz 18 NR thru a 4x12 at rehearsal...wow!

Thank you for the explanations. 🥰

Great AMA! I have a Blue in my Mk.II, been using it for about 6 years now... My absolute favorite amp and speaker combination ever!

I absolutely love your AMA series. Very informative, love your amps. Still wanna a video similar to the EMS history and inspiration video on the EZG- 50 amp. A very underrated amp.

Thanks Doc!

Just what the Dr. ordered! Three essential food groups: Fender, Marshall and VOX!

Great video! I use the Maz jr with a Celestion Gold and the Remedy with a Creamback. Dr Z builds the best amps!

You left out the best speaker I have ever used, the Celestion Alnico GOLD !!

Thank you for this info sir! Just got my first Z, Maz 18 head w the mk2 upgrades! I got a 112 cab with the H30. Absolutely love the amp, especially with my Tele! Gonna need a backup head at some point. Would love a Z wreck jr. Also, wish you had a Z Plus NR head, would most likely snatch one up as well. Thanks for these great videos!

Thanks Dr Z

Messing around with different cabinets, my two favorite speakers for the Maz 18 are the Celestion Heritage Greenback and the G12-35XC. So, it seems like the Celestions with the imitations of the Pulsonic Cones.

I gleamed today..! Thanks!!

I have the Z best cab with the V30 & Cream Back love it!

Thanks Z very informative. Think I'll put a Blue in my Maz 18 mkii.

Somebody call 911 I need a Dr!! Cant wait to get my hands on a Z. Great Video!

Awesome video doc. Would love to hear your thoughts on using the same speaker but at different ohms, 16, 8 and 4 not mismatched that is. What’s happening in the amp and how it impacts the tone.

Man, I wish someone would do this for us bass players. 🙌🏼❤️

Greenback always seems to be my favorite. H30 could work nicely but louder.

I put a Weber Thames ceramic 12 in my buddy’s Maz-38 NR and he loves it even after 15 years of runtime. He’s a country picker with a Tele just for reference.

I run my MAZ18 head through a Mesa 1x12 cabinet w/ a Celestion C90 (Black Shadow). Sounds great.

Awesome 👍. So I'm building several with the cheapest low efficiency speakers I could buy. I bet they will growel

Smooth, gritty, open, mid focus, biting , chimey, bell like, deep, brown, fat, scooped, soo many descriptive words… use your ears 👍🏽 12:50 thank you!

Im usually pretty good at hearing an amp and knowing what i will like in it but im okd n cannot see or drive so it took me a long time M brainstorming on what i want in a 4×10 to go with my britishy head.

Absolutely love how you speak and explain things. It also says something about your mind and how intelligent you obviously are. 😊 Great video. I just bought a z-28 1/10” combo. Looking at speakers for it. Leaning towards the G10 greenback.

I have an SRZ 65 that I run into an Orange 2x12 cab loaded with one Celestion Vintage 30 and one Celestion Alnico Cream sounds amazing! Loud as a fucking freight train!

I love my Z amps, been using them pretty much exclusively for the last 15 years. I love experimenting with speakers, but I will say, the special sauce speakers Doc uses for amps like the Z Master are on point. Would love to see more specialty speakers down the line! BTW, what is that top loaded red amp?!?!?! Is that my Z28 MKII??? 🙂;-)

Hi great speaker demo being from the USA have you used Naylor speakers? I'm from the UK and there quite rare over here. I have a pair in a hand wired ,turret board Dan Torres amp I managed to buy used some time ago. There 8 0hm 25 watt I really like them, to me they sound like a green back. Love to hear your opinion on them cheers Martyn.

I can't decide between a Greenback or a Creamback. And could you repeat it all with a nice reissue Les Paul please. Why only single coil??

I just put a Celestion Gold 15 ohm in my Maz18 MKII combo and it is SUPERB !!!

Blue alnico !

HI. I have a Remedy head with Master Volume. I have a 2x12 cabinet with with 2 Celestion Greenbacks speakers. I would like to change just one speaker but I don't know which one pairs perfectly with my Greenback to have a balanced sound suitable for the model of my Remedy head. My genre goes from Rock to Heavy Rock. Which one would you recommend? Thanks alot

Hey Doc! Kinda get mixed reviews on this issue regarding certain tube amps but do recommend using the standby switch on the Maz 18?

Do you think a V30 could work in a Z Lux? I love mine but wonder if I could get a bit more punch in the mids with a different speaker

With the Maz 18 mkii master volume is pushing the amp more in an at home situation that important? Just ordered one and I’m torn between the h30 and greenback. Greenback could win if the sensitivity makes it better for home use.

I have a Fane F-70 speaker...Any opinion on how that might sound in a Maz series combo??

Beat for Carmen gilla?

What about an older E V 12L? Would it have much effect on loudness?

Any opinions on neo speakers?

Alnico Blue sounds real musical

I wonder, does Dr. Z use anything other than Celestion? Like Eminence or Jensens? Is there a reason why Dr. Z prefers Celestion speakers?

How much would a custom amp cost?

Quick question Z, I have your red 2x10 Cab and fancy trying out some different speakers. Im just wondering would the celestion G10 Alnico Golds actually fit in the cab. I know the G10 gold sticks out more?

EVs not an option ?

Too long didn’t read. You get what you pay for when it comes to speakers. They genuinely make incredible types of plastics and resins that don’t lose frequency and are molecularly dense enough to resonate cleanly, but you do have to pay for it. You can’t expect much out of a $100 speaker. Put some $400 speakers in your car, power them well and you’ll be jaw dropped at how worth every penny is…

Great video as usual Dr. z 👏 👏 👏