Measured with 2 Spiders "stock" suspension. Short break-in period - with extended break-in FS and Qts drop along with some other changes to TS specs.
RE variance by size is within tolerance of the Woofer Tester Device, temperature, etc.
Specs are similar when using NS or Z cones... NS cones are heavier but not a huge change in specs, lower FS primarily.
4/27/10 : Posting today... will be filling in as I get time to break-in and measure all configurations. Until then the D1 and D2 specs are very similar.
----------
10" D2:
RE: 3.88 ohms
Fs: 51.69 Hz
Qes: 0.474
Qms: 7.04
Qts: 0.444
Le: 2.53 mH
Vas: 7.31 L
BL: 24.01 NA
Cms: 43.77 um/N
Mms: 216.53 g
Sens: 85.12 dB 1w/1m
----------
10" D1:
RE:
Fs:
Qes:
Qms:
Qts:
Le:
Vas:
BL:
Cms:
Mms:
Sens:
----------
12" D2:
RE: 3.72 ohms
Fs: 37.54 Hz
Qes: 0.409
Qms: 6.82
Qts: 0.386
Le: 2.8 mH
Vas: 23.95 L
BL: 24.07 NA
Cms: 66.43 uM/N
Mms: 270.43 g
Sens: 86.74 dB 1w/1m
----------
12" D1:
RE:
Fs:
Qes:
Qms:
Qts:
Le:
Vas:
BL:
Cms:
Mms:
Sens:
----------
15" D2:
RE: 3.8 ohms
Fs: 36.83 Hz
Qes: 0.376
Qms: 3.8558
Qts: 0.342
Le: 2.956 mH
Vas: 60.77 L
BL: 25.28 NA
Cms: 67.02 uM/N
Mms: 270 grams
Sens: 90.91 dB 1w/1m
----------
15" D1:
RE:
Fs:
Qes:
Qms:
Qts:
Le:
Vas:
BL:
Cms:
Mms:
Sens:
----------
18" D2:
RE: 3.69 ohms
Fs: 30.21 Hz
Qes: 0.477
Qms: 7.65
Qts: 0.44
Le: 2.62 mH
Vas: 126.61 L
BL: 24.21 NA
Cms: 69.35 uM/N
Mms: 400 grams
Sens: 90.47 dB 1w/1m
----------
18" D1:
RE:
Fs:
Qes:
Qms:
Qts:
Le:
Vas:
BL:
Cms:
Mms:
Sens: