SB Acoustics SB15NRXC30-8-UC (8) 5" Paper Cone Woofers

(8) NEW In Box SB Acoustics SB15NRXC30-8-UC 5" Paper Cone Woofers

SB Acoustics SB15NRXC30-8-UC 5" Woofer Uncoated Cone

SB Acoustics has released its units in the un-coated version. Upon close inspection, you can see the tiny flecks that naturally occur in this material.
They look similar to the spruce cones from SEAS and you may find a few, very expensive commercial systems using this version.
We think the look gives them a bit more character over the standard, coated cones.
Non-resonant Papyrus fiber cone
Low damping SBR surround
Open structure cast frame for reduced reflections
Copper cap on pole piece
Raised spider
30mm Voice Coil diameter
Frequency range 38Hz to 4kHz
Gasket

Spec sheet: SB15NRXC30-8-UC PDF

30mm Voice Coil diameter
Frequency range 38Hz to 4kHz
Gasket
Vented cast aluminum chassis for optimum strength and low compression
Proprietary cone material with natural fibers made in-house
Soft low damping rubber surround for improved transient response
Non-conducting fiber glass voice coil former for minimum damping
Extended copper sleeve on pole piece for low inductance and low distortion
CCAW voice coil for reduced moving mass
Long life silver lead wires
Vented pole piece for reduced compression

Reviews:
These arrived today form falcon acoustics, considering zaph reviewed them as 'built more like a $200 driver' and 'near scan-speak distortion levels'
I'm very excited about using them. I've plugged them in for a quick listen and they sound superb out the box,
you could almost run them as full-range drivers... almost.Currently planning on using seas tweeters (ordered two soft domes)
but will play with a few and see which sound best, will also flip between 2nd order, 4th order, and various different capacitor brands in blind double tests,
so hopefully we can start getting some straight forward answers!

Suggested alignments:

0.1 cubic foot sealed box for F3 of 95Hz
0.26 cubic foot vented box for F3 of 60Hz, 1.5" vent diameter by 5" long
For two woofers:
0.55 cubic foot vented for F3 of 60Hz, 2" vent diameter by 6" long

Listing is for 8 NEW Woofers
Shipping is 60.00 Flat Rate