The R176-AP-08 mid woofer by Rival Acoustics features an aluminum cone with Polypropylene dust cap.
A large 39mm CCAW voice coil wound on a perforated fibreglass former
produces high stability, exceptional power handling and excellent
efficiency. This is augmented by an ultra-low distortion magnet assembly
with aluminum stabilizing ring and extended copper cap on the pole. The
R176-AP-08 is finished in a generously ventilated cast aluminum chassis
with a flat Bimax spider.
f(s) = 45.09 Hz
Q(ms) = 6.481
V(as) = 20.98 liters (0.741 cubic feet)
n(0) = 0.42 %
M(ms) = 15.66 grams
R(e) = 6.36 Ohms
Q(es) = 0.440
SPL = 88.30 dB SPL 1W/1m
C(ms) = 0.80 mm/N
Piston Diameter = 132.1 mm
Z(max) = 100.03 Ohms
Q(ts) = 0.412
L(e) = 0.132 mH at 10kHz
SPL = 89.29 dB SPL 2.83 Vrms
BL = 8.01
$50.00 (USD) for the pair plus shipping from L4N 9Y2
I hooked one up for measurements. Mic approximately 8'' from cone. This
is not accurate to specs but gives an idea of performance.
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Comments
BTW nice drivers at a pretty good price....
SOLD