build a sub with this?

[invaderzim]

I've got a Silver Flute W20RC38-08 8" Could I build a relatively small subwoofer with this for low to moderate levels of music?

Specifications:

Re 7.3 Ohms
Sensitivity 91 dB
Power 100 watts
Fs 30.8 Hz
Qms 1.30
Qes 0.28
Qts 0.23
Vas 83.3 Ltrs
Mms 20.9 g
Cms 1281.1 mM/N
Sd 0.0214 M2
BL 10.1 TM
X-max 5 mm
Le @ 1kHz 0.92 mH

Krm 1.65 mW
Kxm 32.793 mH
Erm 0.853
Exm 0.591

thanks

[johnny5jz]

That driver does not like to play very low. I have modeled it hoping to use it in a 3-way, but was not happy with the results. It didn't model well below mid 40's. Now as a disclaimer, I modeled it with factory specs, but have not measured one myself. The 6.5's model better in the low end than the 8's.

[invaderzim]

bummer, thanks for the reply.

[Brian Steele]

The low Q suggests that you might be able to get down to 30 Hz or so with a higher order design like a 6th order bandpass or even tapped horn. Another option is an Extended Bass Shelf alignment. But before going there, you should really measure the t/s parameters first.

[Chris Roemer]

1.2 vented cu.ft. using a 3"id x 7" long port tube should do better than 50Hz @ over 100dB.
Not really "sub" territory, but it should certainly be able to play the bottom octave of your average "rock" music to fill in for some bass-limited desktop speakers.