What to do with a free driver? Sealed Sub?

Hi, I have just repaired the cone of a woofer from a genelec 1037c speaker with pva glue. It's not needed for that application anymore as we purchased a replacement. I was wondering if it might work as a sealed sub? I measured the Thiele Small parameters using REW and include them below. It has a very low Qts and quite a high Fs. Would this work in a small sealed sub? Or has anyone any other recommended applications? I dont want to spend much on this project but my home system could do with a bit more low end so a small sub would be a useful project. This is a very heavy sturdy speaker. It has a pleated tacky fabric surround.
Look forward to hearing your ideas.
Nick

Voice coil DC 2.77ohm
effective area 452cm^2 (12inch speaker but effective cone diameter is 24cm)

TS parameters for measurement: without mass
RE 2.77 ohm
fS 51.7 Hz
MMS 76.85 g
Zmin 3.61 ohm
QMS 3.864
QES 0.254
QTS 0.238

CMS 0.123 mm/N
fmin 268 Hz


RMS 6.464 kg/s
f3 807 Hz

VAS 35.71 litres
LE (f3) 0.454 mH

FTS 217.3 Hz

Bl 16.524 Tm
Dd 23.99 cm

LP 94.95dB (1W/1m)

Eta 1.90 %
Sd 452.0 cm2

Added mass 29.40 g
Secondary measurement: withBigMass Air temperature 20.0 C, pressure 1,013.25 mB giving density 1.2041 kg/m3, c 343.2 m/s