P.Audio 8NT-65MB is an 8-inch 8 ohm LF driver rated at 300 W RMS. The validated T/S data includes Fs 75 Hz, Qts 0.46, Vas 7.7 L, Xmax 3.8 mm, sensitivity 90.2 dB, plus 80 cm³ Vd and 150 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
75Hz
Qts
0.46
Qes
0.50
Qms
5.3
Vas
7.7L
Re
6.5Ω
Le
0.35mH
Motor and cone
BL
15.4T·m
Sd
214cm²
Mms
35g
Xmax
3.8mm
Vd †
80cm³
Voice coil
64mm
Flux density
1.25T
Power and response
Sensitivity †
90.2dB
Manufacturer sensitivity
96dB
Power
300W
Nominal power
300W
Impedance
8Ω
Range
75–5000Hz
EBP †
150 · Leans vented
Size and mounting
Diameter
220mm
Cutout
185.3mm
Depth
102mm
Weight
2.5kg
Other published values
Cms
0.11mm/N
Power Program
600
Other dimensions
Mounting Depth
102
Mounting Diameter
219
Sensitivity shows 90.2 dB, calculated from the T/S values. P.Audio publishes 96.0 dB, 5.8 dB apart.