First you said it sounded boxy then you praised the clever cab design. too.
Context is everything.
In the early 60's, there was no Eden or SWR, not even the Ampeg fridge. The first-generation Fender Bassman 4x10 had short-throw guitar speakers in an open-backed cabinet. Electric bass sounded pretty good on records, but on the gig, it sounded like the aftermath of a bad bean burrito.
Now imagine stepping on stage with a B-15, with a nicely ported cab, and getting a fuller, deeper, cleaner sound from 30 watts, than you got from a 50-watt Fender. That was the start of Jessie Oliver's legacy.
...The amps are definitely great ... but the speakers that are being pushed have a bigger role to play than most people give credit.
Absolutely. I do a lot of tube amp mods for guitards, but my customers often get more mileage out of a simple speaker swap.
I play bass through a little AudioKinesis cab these days, with a honkin' great radial horn and a 450-watt twelve. The crossover weighs more than my amp. With enough power, it makes a B-15 sound pretty wimpy.
But if you want a little "hair" on your notes, it's not going to do the trick. Without some cone action to smooth things out, even tube amp distortion tends to sound a bit thin and fizzy. If you've ever tried to DI the line out from a guitar amp, you know what I'm talking about.
In order to satisfy guys like Duke21, the designer at AudioKinesis had to create a cab called the Hathor, with a pair of cone midrange drivers to get some cone breakup happening.
...The most simple designs may outshine the most complex. I bet that get you going too .
No argument there, either. I'd rather play guitar through my Tweed Deluxe (two 6V6's, 1-knob tone control), than any Mesa or Marshall stack, half or full.
Of course, I'm pretty sure my Thunderchild cab would impress, too. ;-D