B&C 15RBX100 is a 15-inch 4 ohm LF driver rated at 1000 W RMS. The validated T/S data includes Fs 42 Hz, Qts 0.35, Vas 105 L, Xmax 9 mm, sensitivity 95.1 dB, plus 817 cm³ Vd and 111 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
The published T/S values agree with each other
Thiele/Small
Fs
42Hz
Qts
0.35
Qes
0.38
Qms
6.3
Vas
105L
Re
3.7Ω
Le
0.90mH
Motor and cone
BL
21.3T·m
Sd
908cm²
Mms
159g
Xmax
9mm
Vd †
817cm³
Voice coil
100mm
Flux density
1.10T
Power and response
Sensitivity †
95.1dB
Manufacturer sensitivity
94dB
Power
1000W
Nominal power
1000W
Impedance
4Ω
Min. impedance
4.5Ω
Range
40–3000Hz
EBP †
111 · Leans vented
Size and mounting
Diameter
393mm
Cutout
354mm
Bolt circle
374mm
Depth
173mm
Weight
10.6kg
Sensitivity shows 95.1 dB, calculated from the T/S values. B&C publishes 94.0 dB, 1.1 dB apart.