JBL 8" 8120

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To open, I have not used them.

Looking at the JBL data:
- the Q is pretty high at 1.57;
- The fs is high at 95Hz
- there appears to be a 10dB rise in output above 2kHz

I would not expect too much from them though, loading (box / reflex) willstruggle to deal with the T/S characteristics, and you will likely find the rising response is a lot messier than the graph JBL provide!

If they are the right price, then fine.
 
No experience with this particular driver, but quite a bit using this genre to make high SQ speakers for inexpensive HIFI/TV/Muzak apps, so adding a frequency shaping network to flatten its broadband boost combined with a high Qts will in theory make it an excellent OB loaded ~full range driver ['messy' looking response though it's sure to be to some extent], needing only a ~120 Hz woofer system to fill in the bottom 2-3 octaves and if you can still hear up high or need a wide 'sweet spot', then add a super tweeter system.

GM
 
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