B&C 15BG76 is a 15-inch 8 ohm LF driver rated at 500 W RMS. The validated T/S data includes Fs 44 Hz, Qts 0.56, Vas 68.4 L, Xmax 9.6 mm, sensitivity 91.8 dB, plus 821 cm³ Vd and 72 EBP. bits tracks UK, EU and US shop prices, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £266.54.
The published T/S values agree with each other
Thiele/Small
Fs
44Hz
Qts
0.56
Qes
0.61
Qms
6.2
Vas
68.4L
Re
5.4Ω
Le
1.29mH
Motor and cone
BL
21.7T·m
Sd
855cm²
Mms
194g
Xmax
9.6mm
Vd †
821cm³
Voice coil
76mm
Flux density
1.22T
Power and response
Sensitivity †
91.8dB
Manufacturer sensitivity
93.4dB
Power
500W
Nominal power
500W
Impedance
8Ω
Min. impedance
6.5Ω
Range
44–1000Hz
EBP †
72 · Sealed or vented
Size and mounting
Diameter
393mm
Cutout
354mm
Bolt circle
374mm
Depth
190mm
Weight
6.0kg
Sensitivity shows 91.8 dB, calculated from the T/S values. B&C publishes 93.4 dB, 1.6 dB apart.