I’m currently working on a follow up video with a similar experiment from the audience perspective further away from the cab. I’ll post it here when it’s ready. Thanks so much for watching and all the thoughtful comments ⚡️

A 12" longthrow speaker carries an incredible punch compared to standard   systems

To my ear the 15” is the best.

That all sounded pretty much like I expected. Smaller speakers "speak" faster, which  provides clarity, whereas a bigger speaker is fuller. I personally  think  12"s are the best option for both.

Nice comparison! The 1x15" sounds great, but I think the 4x10" can deliver as much bass as the 1x15" in the room. The mic is isolating just one 10" speaker, so is not quite the same thing as the whole cabinet working together. That being said, the 12" response was great as well.

Yup the 15” is without a doubt the best !

I used 8x10s for years until I got my first B15 20 years ago and have been using 15” speakers ever since .

Watching a new Philip Conrad video always puts me in the mood to play bass.

Such a well done video . I loved the frequency chart showing as you were playing , I was nerding out on that. No other guys doing these types of videos are showing the actual math/science of  things.
This 2x12 won me over , plus it looks like a mini fridge . I will be ordering one soon.
Thanks for the share .

I'm more of a 10" guy. I just like the punch you get from 10" speakers, but it also largely depends on what kind of tone you are after. For that vintage P-bass + B15 tone you really need to have a 15" speaker.

Awesome video dude, love the EQ overlay you do on your videos. Something I do all the time when I'm deep in the tone zone. 15" for me

Very interesting.
I preferred 12 for fingerstyle (great compromise between the 10 and 15), but 15 for pick (I feel that with picking you need to compensate for the loss of lows)

Back in the 60s--when I was very young!---bigger was always better if you were a bass player. I used to play through a Selmer Goliath cab with an 18" speaker and a Selmer Treble 'n' Bass amp. It was massive in both sound and size. After a while I bought a Selmer David 15" cab but never used them both at the same time. That was reserved for smaller venues.

You took the words out of my mouth when you said the 10’s sounded more like the DI. I was thinking the same thing. The 15 has the most character but 10’s just sound right to my ears. Great video!

I currently own a 1x15 and a 2x12. I replaced a 4x10 with the 2x12 as my main gigging cabinet because it's lighter and easier to load in/out. One thing I didn't see you mention during the recording is that you were recording woofers only. For a vintage tone, that's ideal. But for more modern sounds you've got to be able to dial in a HF driver to bring out the same type of clarity you get from the DI signal. Pairing an good tweeter with any of these combos and attenuating the level appropriately changes the game quite a bit in terms of clarity and articulation and tips the scales away from the 4x10.

FUCK YEAH NEW PHIL CONRAD VIDEO. the stache looks amazing

Maybe because I'm listening to the video with less than great speakers, but I couldn't tell whether there was that much of a difference between the different speakers.  I could hear a little bit of difference with the 15 inch.  
But I prefer 15 inch speakers for my bass amp.  I have tried different sizes, but they provide better bottom end, which suits my style of playing.

10” for me. The best bass box I ever hear had about 6  x 10”. Punch and clarity

15"

I'm a dedicated lifelong 2x10 guy. It feels like an important part of my identity as a bassist. It has been 20+ years since I got my first 2x10 combo and its the only speaker configuration I've ever bought since, but I thought the 15" sounded best across the board in these tests. I'm having a little crisis of faith here.

Years ago i had an 18” cabinet then 4x10 with a horn. I loved that setup.