The above earlier testing was done with a prototype Z v.2 motor with 2 Hard / 1 Soft of our current Nightshade spiders.
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New testing done with two of the "new" spiders w/ double tinsel leads (much softer) also on prototype motor -- pending a bit more testing this will most likely be the "standard" suspension on production models :
Same box... "magic box" in the Jeep.
HU Setting / Power / SPL
-6 / 540 watts / 146.0 dB
-5 / 680 watts / 146.9 dB
-4 / 860 watts / 147.7 dB
-3 / 1090 watts / 148.6 dB
-2 / 1380 watts / 149.5 dB
-1 / 1730 watts / 150.3 dB
0 / 2230 watts / 151.2 dB
+1 / 2780 watts / 151.9 dB
+2 / 3480 watts / 152.8 dB
+3 / 4800 watts / 153.5 dB
Notice that large gain in SPL per watt... also, notice that with "rated power" I am right around 150 dB
I am still waiting on production coil samples... I will do another round of testing of SPL per watt at that time.
I also expect gains on production motors vs. prototype as stated before -- as the production has a tighter gap (more BL).