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In Reply to: RE: Large Tannoy DCs on OB? posted by PaulF70 on September 11, 2015 at 17:08:27
Well, I thought I was in a minority with my campaign against open baffles.
I think I still am, but once in a while, someone like Mr. Garg0yle
will come along and expose the ugly truth. As per Beranek, any attempt
to divulge facts against the use of an open baffle for any thing resembling bass, will result in varying degrees of hostility.
This dive into an open baffle design is a typical myth following, gone rampant, never before seen except maybe the likes of Tulip Bulb Mania.
"Your fooling yourself if you don't believe it".
It's not hi-fidelity, it is indeed mysticism.
Mysticism often sells good.
Then again, I have recently discovered, most audiophile are really nice guys; very few of them can actually hear.
Follow Ups:
Hopefully, you are young... to parade such arrogance...interests "young women etc, etc, etc. A non eclectic list of interests.
Perhaps, you could research AND listen more and quite possibly,
Learn,
that taste varies and every choice beset with compromise.
Let us hope your ego will diminish in order to allow compromise for the present "set in stone" thoughts you faun over.
The Mind has No Firewall~ U.S. Army War College.
LOL!
I have no idea what you're talking about. These speakers measure remarkably flat in-room from 50-14K cycles with the exception of a mid-bass hump that really, frankly, is not too bad and certainly doesn't *sound* it.
(BTW - these are shaped and radiate just like Quad 57s - there is a reason they are a classic.)
I think you may spend too much time with spreadsheets and not enough thinking about room interaction and psychoacoustics, but whatever. Enjoy whatever speakers sound good to you.
"These speakers measure remarkably flat in-room from 50-14K cycles with the exception of a mid-bass hump that really, frankly, is not too bad and certainly doesn't *sound* it"
Since you have the measurement, it would be good if you would show the measurement and the measurement conditions and details.
:)
I do measurements with pink noise & a Rat Shack meter with adjustments made for its non-linearities. It is good enough; it easily reveals speakers with marked frequency response aberrations (i.e., the vast majority of widebander or widebander-based speakers which have not just peaks but a progressively rising response and/or a big shelf in the 1.5-3K region - things that we *hear* quite readily).
The great thing about the Altec/GPA driver (with a good xover, that is) is that it doesn't suffer from such defects yet is still extremely efficient - an honest 100 dB/W with quite flat eight-ohm-nominal impedance.
Putting the driver on an OB doesn't affect that quality, of course. Below 100 Hz or so, the room has as much or more effect on response as the speaker. Then there is the floor-bounce effect. What do the spreadsheets say when these are taken into account? These speakers put out realistic amounts of presence region energy.
There is a reason why at least one well-known member here (who'd also owned lots of gear) used these very speakers (Altec 604s on JE Labs baffles) as a long-term reference, why Yamamoto sold essentially the same speaker, why the Quad 57 (nearly identical in shape and power response) is such a classic.
But, honestly, I'm not out to convince anyone of anything. I really do not care. But, as long as you do not display any serious and stubborn misunderstandings of the basics of acoustics and speaker design (such as not understanding that a compression driver with a horn on it doesn't radiate to the rear even if you take off the back of the speaker!) I'd be happy to have a conversation with you. :) (As my limited time allows.)
"(such as not understanding that a compression driver with a horn on it doesn't radiate to the rear even if you take off the back of the speaker!)"
Get a grip, I never stated that, if I did, you would have quoted it.
It was always about the bass.
△ᴉʇɐuᴉɯnllI oᴉpn∀△
Right! You talked about artificial ambience, which is clearly, absolutely, an aspect of *treble* when it is present.
(I do hope you have issues with guys who put rear tweeters on their speakers, such as Von Schweikert.)
As for the bass, that is, again, you pontificating about a speaker you've never heard and do not understand. You waded into a topic you have no experience with, stuck your foot in your mouth, yet are apparently unwilling to admit even the possibility that you might be wrong. Whatever.
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