FranJ Posted January 10, 2011 Share Posted January 10, 2011 http://www.mwd.fr/adam_studio/adam_studio_sub2100.php Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 10, 2011 Share Posted January 10, 2011 Sorry, can't read French. The driver is a paper cone with an accordian surround, hardly hi-tech. What's desireable about this unit? Quote Link to comment Share on other sites More sharing options...
psg Posted January 11, 2011 Share Posted January 11, 2011 Sorry, can't read French. The driver is a paper cone with an accordian surround, hardly hi-tech. What's desireable about this unit? 21" driver. 99 dB sensitivity. 128 SPL at 1 m. (I'm guessing that's why) Quote Link to comment Share on other sites More sharing options...
jacksonbart Posted January 11, 2011 Share Posted January 11, 2011 not all that special Quote Link to comment Share on other sites More sharing options...
FranJ Posted January 11, 2011 Author Share Posted January 11, 2011 Huh... the best woofers ever made, from TAD, JBL, Altec, GOTO, and the woofers you have in your heritage speakers, are made of "paper" with an "accordeon" surround. You don't put a rubber surround on a 21inch driver; it would become slow and sluggish... a good, big size "pro" woofer like this one, with high sensitivity, will always sound better to my ears than a "heavy" low sensitivity driver in a small sealed box with a correction circuit to boost the lowest frequencies. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 12, 2011 Share Posted January 12, 2011 Huh... the best woofers ever made, from TAD, JBL, Altec, GOTO, and the woofers you have in your heritage speakers, are made of "paper" with an "accordeon" surround. That's because they are woofers, not subwoofers. The frequency range that a woofer typically works in does not require a surround that moves as much as a subwoofer would. Paper cones are fine if you're not moving a lot, but composite is better for the higher loads that a driver experiences when it needs to move more air. You don't put a rubber surround on a 21inch driver; it would become slow and sluggish... No, it wouldn't. The speed of the driver is determined by the strength of the motor, not the composition of the surround. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 12, 2011 Share Posted January 12, 2011 128 SPL at 1 m. At what frequency? Quote Link to comment Share on other sites More sharing options...
FranJ Posted January 12, 2011 Author Share Posted January 12, 2011 my guess is from 21inch upwards, cone excursion is not that much anymore. above 15inch, and with the notable exception of VOLT 18inch woofers, I've never met a pro SUBwoofer with a rubber, or any other "souple" surround... and I'm not talking altec 515 here, we agree that we talk about SUB bass. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 12, 2011 Share Posted January 12, 2011 That sounds correct. Most pro gear is made to go loud, not low. For HT, I like drivers that go low. If I were to buy a 21" driver for HT use, I'd get THIS driver. With 32mm of xmax, It will move some serious air. Quote Link to comment Share on other sites More sharing options...
jacksonbart Posted January 12, 2011 Share Posted January 12, 2011 I want this one Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 12, 2011 Share Posted January 12, 2011 I'll bet she'd bend over backwards to make you happy. Quote Link to comment Share on other sites More sharing options...
FranJ Posted January 12, 2011 Author Share Posted January 12, 2011 lol she's got flexible suspensions for sure Quote Link to comment Share on other sites More sharing options...
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