Band-Pass Filter adjusting

[Logic001]

Hello,
I need advice, how to proper adjust BPF settings in my amp. Asking cause one pair subs allready burned 😀. Order again new ones and this time I hope set correct frequency within a certain range. If needed signal frequency generator to test subs is not problem, subs enclosures without any modification- vented BMW OEM.

System: Amp soundstream tn4.900d
BMW aftermarket under seats subs: Helix Match 8b-bmw.2

AMP:

Spec subs:
150/300W
30 - 140 Hz
90 dB 1W / 1m

DC resistance ​	Re	3.4 Ω
Resonance frequency ​	Fs	46 Hz
Mechanical Q factor ​	Qms	4.45
Electrical Q factor ​	Qes	0.59
Total Q factor​	Qts	0.52
Compliance​	Cms	272 µm/N
Equivalent air volume​	Vas	17.3 L
Force factor ​	B*I	8.6 Tm
Efficiency 1 W / 1 m​	SPL	90 dB
Cone area ​	Sd	214 cm²
Moving mass ​	Mms	44.2 g
Cone material​		Hand-scooped paper cone
Mechanical resistance ​	Rms	0.74 kg/s
Voice coil diameter​	ø	42.5 mm
Voice coil winding height​		12.5 mm
Max. linear excursion ​	Xmax	+/- 4.0 mm
Outer diameter​	ø	239 mm / 9.41"
Installation diameter​	ø	175 mm / 6.89"
Installation depth​		40 mm / 1.57"
​
Recommended enclosure volumes​
Sealed box​
Net volume​		3 L
Lower limiting frequency (-3dB)​		63 Hz
DSP settings​		- Highpass: Butterworth; 12 dB/octave; crossover frequency 40 Hz Additional EQ filter: center frequency 90 Hz; Q factor 3.0; gain -4 dB Lowpass: Butterworth; 24 dB/octave; crossover frequency 80 - 100 Hz
​
Vented box​		For one subwoofer	For two subwoofers
Net volume​		12 L	24 L
Port diameter​	ø	60 mm / 2.36"	80 mm / 3.15
Port area​		28 cm²	50 cm²
Port length​		25 cm / 9.84"	20 cm / 3.94"
Port tuning frequency​	Fb	46 Hz	46 Hz
Lower limiting frequency (-3dB)​		45 Hz	45 Hz
DSP settings​		- Highpass: Self-Define; crossover frequency 40 Hz; Q factor 1.3 Additional EQ filter: center frequency 67 Hz; Q factor 3.0; gain -3 dB Lowpass: Butterworth; 24 dB/octave; crossover frequency 80 - 100 Hz

Thank`s