I concur with Art and bass has got worse with the night club electronic generated dance music culture which has boiled over into recording studios, live concerts to the point that people believe this is real bass even with music instruments. We have all heard the booming car approaching.
I left BASS REFLEX speakers about 20 years ago by first blocking my ports much to the disgust of the speaker designer. When I got my REL subs it wasn't till I blocked these ports that I got the boom out of the bass.
I now own 2 subs that come sealed with a 12inch driver that barely moves. My Tannoy monitors are permanently blocked. Interesting they came from new with dense foam blocks to partially block them.
This from Barry Ober "The Sound Doctor" site
http://www.soundoctor.com/whitepapers/subs.htmA port is ALWAYS nothing more than a cheap way to attempt to get free bass out of an enclosure and /or driver that's too small. It's a holdover from the 1930's when because of driver inefficiencies (especially when compared to today's units) you had to do everything possible to increase the useable output over the desired range of frequencies.
Lets examine ported speakers. We'll start with the worst case, the port in the front. At mid bass frequencies, say 50-80 Hz, the LF driver moves IN the cabinet, the air in the cabinet is elastic, and the port air moves out of the cabinet. Because of the frequency at which the cone is moving, by the time the cone moves back out again, the port air is now moving out, so in front of the cabinet the two air pressure sources sum together and you get a fake bass "bump" or "boost".
He is not alone in stating this. I admit the room is the final frontier in achieving good bass.
The other problem is people don't listen to a variety of concerts(classical, jazz, rock etc) in different venues to get a handle on sound in acoustic spaces. Industry(Professional and Hi-Fi) related people are some of the worst check Art's mention of Leo Fender for one, I was astonished at reading this.
Why are some off our recordings so bad?????