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#178705 - 10/12/07 06:33 AM Re: Movie voices sometimeseem raspy or too "bright [Re: Mojo]
F107plus5 Offline
connoisseur

Registered: 01/24/05
Posts: 2034
Loc: Fla. Orig. Mich.
 Originally Posted By: Mojo
I am sure they sound very nice.

You said they all use the same tweeters as if to imply that they all have the same tweeter response. The tweeter response however depends not only on the tweeter itself but also the cross-over frequency and the subsequent equalization.


Nope; only mentioned the tweeter cause you mentioned it yourself when you stated you returned your old QS4s.

Naw; I'm not the one who says they sound good together, cause I've never heard them. But Axiom felt that using the same tweeter throughout the entire audiophile line was important enough to remove the old hybrid tweet. But yup; how the tweeters fit each box and the mids is important for sure.

I'd really like to see a white paper with waterfall plots for all these speakers. That would be jolly fun! \:\)

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#178723 - 10/12/07 09:50 AM Re: Movie voices sometimeseem raspy or too "bright [Re: F107plus5]
Mojo Offline
connoisseur

Registered: 01/21/07
Posts: 3292
I think you're confusing me with someone else. I never had QS4s.

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#178756 - 10/12/07 11:48 AM Re: Movie voices sometimeseem raspy or too "bright [Re: Mojo]
jakewash Offline
shareholder in the making

Registered: 12/26/03
Posts: 10398
Loc: Calgary, Alberta
That would be me that returned the QS4s, that hybrid tweeter was just off enough for me to tell and it bugged me alot.
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#178766 - 10/12/07 12:40 PM Re: Movie voices sometimeseem raspy or too "bright [Re: jakewash]
F107plus5 Offline
connoisseur

Registered: 01/24/05
Posts: 2034
Loc: Fla. Orig. Mich.
Uh...yeah, that would be it....oops, uh....

My bad.

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#178938 - 10/14/07 03:09 PM Re: Movie voices sometimeseem raspy or too "bright [Re: F107plus5]
bridgman Offline
axiomite

Registered: 08/25/04
Posts: 5381
Loc: Bowmanville, Ontario, Canada
re: tweeter vs woofer -- the difference between M3/40/50 and 2/22/60/80 is mostly in the 4-5 KHz range, which "officially" is tweeter territory but in reality is in the crossover region where both drivers are contributing. Axiom folks have posted a couple of times that the difference is primarily caused by lower off-axis output from the woofer at the top end of its frequency range, ie the 6.5" naturally rolls off more sharply and/or at a lower frequency than the 5.5" woofer.

A resistor does not seem like an ideal solution for what is really a response bump (or, more precisely, lack of a response dip). I'm rusty on crossover design but at first glance a series capacitor might be a better "hack" than a series resistor, although of course there would be additional phase changes in the crossover region and the effects of those are always hard to predict.

Has anyone with M2/M22/M60/M80 speakers had access to a good parametric EQ and taken down the 4-5 KHz range a couple of dB to see if that has the same effect as switching to M3/M40/M50 ?

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