If anyone is too lazy to build an enclosure for the Peerless 830970, I found a quick solution. I was at Fry's Electronics yesterday, and stumbled across this:
This isn't a driver that's similar to the 830970, or a close cousin. This is the exact same woofer. I took some pics with my camera phone, just to be sure. I'll upload those later. The speakers are named "Creative Gigaworks T3."
To give you an idea of how good these drivers are, the average set of computer speakers are $50. These are $280. So do the math 🙂
I noticed that the driver sold by Parts Express isn't really the Peerless 830970. The 830970 has a black cone and an inverted surroud. The one in the Gigaworks has a silver cone and a convetional surround. The frame and magnet appear identical.
I measured the silver drivers, which were sold by PE, and this is what I got:
- My measurements / What PE lists
- FS: 178 / 148
- QMS: 4.0 / 3.06
- QES: 0.79 / 0.7
- QTS: 0.66 / 0.57
- VAS: ___ / 2 liters
Generally I've found that my measurements are consistent with John Krutke's, so I don't think my gear is *too* far off. I *have* noticed a trend where speaker manufacturers will publish specs where the QTS and the FS are lower than in real life. YMMV