I'll alert the media, I think we've found one thing we agree one. I also think, ideally, the HT enthusiast would be able to audition each potential unit in their own home too.
Steve, I think your analogy is headed in the right direction...but I would say that knowing the distortion char. , the extension, and the FR of a subwoofer would be like know the Gs, the 0-100mph times and the 100-0 times of a car. Again, not everything...but a good indicator of certain cars not being able to perform in certain ways. What would be more beneficial to a hot rod enthusiast wondering about the 1/4 times of a car...
1)a reviewer talking about which *felt* faster and which seemed to pull harder for 3 pages...or...
2) a single sentence that shows the 1/4 mile times for both in equal conditions.
Of course there are a lot of other performance related aspects to the car than the 1/4 mile times...but when the discussion DOES turn to those times and what each car can do...give me the single line of data over 3 paragraphs of someone blabbing on about how *fast* the woofer/car seemed to them..:)
>>>Since everybody is piling on John, let me come to his defence and agree that those numbers mean next to nothing.<<<
I really don't see anyone piling on anyone...a few difference of opinions but they have been handled in a rather friendly manner so far. You may not feel the verified performance data for a speaker/subwoofer mean anything...many think they do play an important role...opninions vary.
>>>It's the experience and that music that matters. What does it matter if your sub can do 135dB if the rest of your setup dies at 100-110dB???<<<
I agree, the whole system needs to have the desired headroom. But, we aren't discussing 135dBs here, the majority of the subwoofers had a hard time cracking 100dBs <30hz. (in TN's huge room)Minimum dolby reference requirements are 115-121dBs for the sub(s) for example.
>>>Frank, those VMPS numbers are from the website. IF they claim 115dB at 2.5% THD, I'm sure it will do more at 10% THD that TN is using for measuring the subs.<<<
BC has stated those figures are just software simulations, they have never actually measured that. 115/20hz would be equal to 8-10 (eight to ten) of the HGS15s all stacked in the same corner all going full throttle. If you choose to believe that, that is up to you
Tom Nousaine is one of most honored members of the AES. He has written quite a few papers on low frequency acoustics and bass reproduction in the typical listening room. All of these papers contain *gobs* of real world graphs and charts compairing just about every possible subwoofer position method to one another. So he has in fact---*shown* his experiments for all to review. It makes some very interesting reading if you ever have a chance to look them over.