T/S Parameters
Valid
Fs26Hz
Qts0.36
Qes0.38
Qms5.3
Vas70.4L
Re3.5Ω
Le0.18mH
BL8.0Tm
Sd235cm²
Mms43g
Xmax9.3mm
SPL86dB
Power90W
Impedance4Ω
Min Impedance3.8Ω
Voice Coil52mm
Pricing & availability
Price movement
Best current price
Updated 17 May 2026
soundimports
£606.28
inc VAT
Dimensions & Physical
Weight3.5kg
Diameter221.0mm
Cutout Diameter193.0mm
Bolt Circle Diameter210.0mm
Similar Drivers
Keep size fixed, then add or remove T/S params to change the ranking and the comparison rows.
Reference
Purifi
PTT8.0X04-NAB-01
8"
Best current price
£606.28
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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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