Vintage Sammi Korea 10" Ribbed Paper Cone Woofers, Foam Surround, 

Model Number CWR-250B30U

8 Ohm Nominal

30W RMS

Freq. Response: 37 Hz-3 kHz

1" Voice Coil

14oz Magnet

Overall Diameter: 10.38in

Baffle Cutout Diameter: 9in

Depth: 4in

Net Weight: 2.7lbs

T/S parameters measure with a DATSv2:

* Piston Diameter = 215.9 mm
* f(s)= 36.34 Hz
* R(e)= 6.684 Ohms
* Z(max)= 68.71 Ohms
* Q(ms)= 4.959
* Q(es)= 0.5344
* Q(ts)= 0.4824
* V(as)= 135.8 liters     (4.796 cubic feet)
* L(e)= 1.629 mH
* n(0)= 1.163 %
* SPL= 92.75 1W/1m
* M(ms)= 26.59 grams
* C(ms)= 0.721 mm/N
* BL= 8.714