T/S Parameters
Valid
Fs55Hz
Qts0.33
Qes0.36
Qms4.2
Vas11.7L
Re3.9Ω
Le0.26mH
BL8.1Tm
Sd133cm²
Mms18g
Xmax2.9mm
SPL90dB
Power100W
Impedance4Ω
Min Impedance4.2Ω
Xover200Hz
Voice Coil39mm
Pricing & availability
Price movement
Best current price
Updated 17 May 2026
soundimports
£372.41
inc VAT
Dimensions & Physical
Weight1.8kg
Diameter176.0mm
Cutout Diameter148.0mm
Bolt Circle Diameter166.0mm
Similar Drivers
Keep size fixed, then add or remove T/S params to change the ranking and the comparison rows.
Reference
Purifi
PTT6.5M04-NFA-01
6.5"
Best current price
£372.41
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Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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