BMS 18N862 is an 18-inch 8 ohm LF driver rated at 1500 W RMS. The validated T/S data includes Fs 25 Hz, Qts 0.34, Vas 312 L, Xmax 19 mm, sensitivity 93.4 dB, plus 2316 cm³ Vd and 70 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 £669.01.
The published T/S values agree with each other
Thiele/Small
Fs
25Hz
Qts
0.34
Qes
0.36
Qms
6.8
Vas
312L
Re
5.6Ω
Le
0.81mH
Motor and cone
BL
25.5T·m
Sd
1219cm²
Mms
267g
Xmax
19mm
Vd †
2316cm³
Voice coil
102mm
Power and response
Sensitivity †
93.4dB
Manufacturer sensitivity
95dB
Power
1500W
Impedance
8Ω
Range
20–200Hz
EBP †
70 · Sealed or vented
Size and mounting
Diameter
458mm
Cutout
412mm
Bolt circle
440mm
Depth
250mm
Weight
10.5kg
Other published values
Cms
0.15mm/N
Sensitivity shows 93.4 dB, calculated from the T/S values. BMS publishes 95.0 dB, 1.6 dB apart.