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      09-07-2012, 05:51 PM   #13
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Drives: 2012 E92 M3, 2014 528i
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Originally Posted by cdgatti View Post
OK - I guess before figuring out how I might employ one of these, some o-scope work is warranted.
I just measured the response of this UP-222 using the iPhone SSD RTA app:

- the UP-222 flat response (85dB SPL measurement) starts at 6KHz to 16KHz+. The starting point (I used ~60dB SPL) is about 3.15KHz.

- OEM Mid to tweeter flat response also starts at around 3.15KHz (85dB); the 60dB point is about 1KHz and again at 12.5KHz. Meaning that the UP-222 starts to take over at about 12.5KHz or so.
-2015 F30 320i, Imperial/Oyster, 8AT: August 2014 ED
-2012 E92 M3 Jerez Black/Rust Brown, M-DCT: September 2011 ED
-2008 E90 M3 Melbourne Red/Bamboo, 6MT: Gone
-2007 MK5 GTI United Grey/Grey, DSG: Gone
-2004 E46 M3 Carbon Black/Cinnamon, 6MT: Gone
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