21" 6" voice coil sub

2000LaDe
10+ year member

CarAudio.com Veteran
http://www.parts-express.com/pe/pshowdetl.cfm?Partnumber=294-690&CFID=11982445&CFTOKEN=34419022

294-690_Li.jpg


this might have already been posted but i have never seen it. so im posting again.

 
3,000 watt continuous program power capacity

6" copper voice coil wound on glass fiber former

30-1,000 Hz response

95 dB sensitivity

60 mm peak-to-peak excursion before damage

Neodymium ring magnet allows a very high force factor and linear excursion

Double silicone spider with optimized compliance

Ventilated voice coil gap for reduced power compression

Aluminum demodulating ring decreases distortion

Undercut pole piece

Triple roll surround

Water-resistant cone coating

 
BL^2 / RE is actually over 300... I bet it would be pretty loud on a burp with that much motor force. MMS really isn't all that high all things considered either.

 
If it says stamped that is a mis-print - I had the 10" version and it is cast for sure //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 
If its cast then, thats cool... And the tooling for that was esssspensive, so that explains the price //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 
There's certainly nothing wrong with stamped frames. Given a desired thickness, they would be a lot stronger than any grade aluminum that's out there. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 
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2000LaDe

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