Is this tb mini-speaker new?

[jdybnis]

http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=264-860

Can't find a spec sheet. The "cone" looks a lot like the one on their new titanium tweeter.

[jkrutke]

I'd like to test one of those. Maybe I'll throw a couple in with my next PE order.

I just tested a HiVi B1S and found it to be very sensitive to the rear volume it was placed into.

[jdybnis]

Did you find an optimal enclosure for the B1S? What kind of extension did you get out of it?

[jkrutke]

Did you find an optimal enclosure for the B1S? What kind of extension did you get out of it?

The F3 was about 300hz, as was the Fs. I did not get a Qts, but I estimate an in-enclosure Qtc of around .7 based on the low end response curve. Run full range, it handles about 1 watt. At about 80dB 1m, distortion is acceptable down to 200 hz. At my normal test level, it was really bad. The optimal enclosure is described in the image below. It is about 1.1 cubic inches, and that's including the driver volume. I'll probably stick the details in a blog update sometime.