Now I understand why some other cabs always sounded terrible when the volume went up! Thanks Alex.

It's very refreshing to hear how and why a speaker cabinet is or isn't effectively reproducing BASS instead of marketing descriptions!!! I really trust Alex and will show the ultimate trust by buying one of his Super Compact T cabs in the coming months!

You keep describing all my problems so well Alex! As a 30 year bass player and a fellow engineer, I'm so grateful you have done all of this tremendous work, so I now don't have to try to! Keep up the excellent work, love your videos, so informative and I always learn something

Like lungeing into cushion thickets ?
As well as designer of the year you're a oretty good teacher -this stuff is complex !...ports are VERY important...now I almost get why.. I can  listen again and again .
You're much appreciated ..

This video made me wish to learn how to calculate what knowledge would be needed to design "tuned ports" . I'm weird like that.---

I have found that with plenty of port, the box just keeps getting louder and louder and punchier as you turn it up, rather than the bass lagging behind and getting mostly mids and highs. Horn cabs also do this well as they are one big "port". I used to blame it on Fletcher and Munson loudness curves, but actually they favour the bass getting more prominent at higher levels - or at least between very quiet and medium levels. Some amps do have some internal dynamic EQ that rolls back the bass at higher levels to extend headroom and avoid stressing the speakers at higher levels.

Hi Alex. Just bought your super compact. Loving these videos. Super geeky, and I am learning so much. Thank you!

Good information! Thanks

I think , as surprising as it may be , not everyone knows exactly how a speaker produces sound .

I really want to hear you explain the basic principles... I'll keep watching till it sinks right in... Gratitude expressed.... Now!! .. Feeling it Alex?  Feeling the love and appreciation...??...

The speaker in my Marshall MG15 seems to be able to move more than that. It was a bit stiff at first, but played some deep house on an external amp through it raising the volume gradually. The "threshold of farting noises" gradually rose as it broke in. I'm not sure how much difference it makes to the guitar sound though. It was probably moving about 4mm each way by the end, though that was likely outside of Xmax.

Although you talk about the excursion of the speaker a lot, the highest port velocity is at tuning where the cone isn't moving much. I'm curious as to why the hybrid resonator ports don't need to be as big, but it could be related to having two tunings spread out.

Alex should compare the Xmas or speaker cone travel from his speakers that he has made for Barefaced to am Ampeg, Fender or other major brand. His cones travel 2 or 3 times further.

Thank you for sharing my exact thoughts and passions on base reproduction. I just like the engineering knowledge to explain it all, bravo!

You mentioned port area.  Is this cross sectional area of the opening.  When thinking about air, volume comes to mind.

What about putting you v port you do on the 1x12 or 1x10 you do behind the port or behind each speaker so the amount of air is dispersed. mabey a stupid costly idea but I would love to see those speakers in a well built cab in a 4x12 guitar cab or  a 2x12 built with the idea port v vent . I had 2 serious head injuries so its possible its a real silly idea. I know a Mesa Boogie 4 x 12 cab with 2 with 2 old Altec 12"on bottom and 2 Eminence Swamp Things on top sounds so good I am so my brothers cab kicks my 2x12 boogies butt . LOL   The Manowars on to sounded great too .I love you company I hope to afford a 4x12 or 4x10 or 2x10 aand2x12 in 4x12 cab depending on your opinion.

I'd be interested to hear your thoughts on powered bass guitar speaker cabs.

Would love to hear a comparison between your philosophy behind the Reality 112 vs. the Kemper Kab!

2 sundown x18v3....14 cubic feet box at 32 hertz.....can I use three 6 inch ports at 11.56 inches to reduce port displacement.....or do I need four 6 inch ports at 16.87

I’m trying to make my first bass guitar cabinet  as a satellite to the combo amp which is a GK 100 watt with one 15” speaker. My cabinet will have an 18” and 2 6.5” speakers. The 6.5 speakers are on the top side by side with a small port in-between and separate from the 18” with a piece of 3/4” birch plywood. I’m looking at how deep and what size port area I should have on the bottom. I just need a rough idea to work with. I would appreciate any advice. Thanks