Need help on Amplifier settings

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I need help on the amplifier settings since there are no good car audio shop around my area! And I believe you guys will have the knowledge to guide me through.

So I have installed an new amp and speakers, but I feel the speakers are still lacking of midrange.

My setup are as follow:

Speakers (tweeter, mid and subwoofer): Rainbow IL-C8.3 BMW F-Series Front semi – active“

3-way 8 inch (20 cm) Compo Set

25 mm Silk dome Tweeter

Max. 150 Watts

Minimum Amplifier Power: 75 Watts

Frequency Response: 35 Hz – 30 kHz

Amplifier: Rainbow Germanium Four

4 x 105 Watts @ 4 Ohm

4 x 140 Watts @ 2 Ohm

2 x 300 Watts @ 4 Ohm bridged

12 dB High Pass: 15 Hz – 500 Hz (5 kHz Front)

12 dB Low Pass: 50 Hz – 5 kHz

Dimensions (LxWxH): 420 x 235 x 55 mm

And here are my current amplifier settings:

4 Channel

Rear: Gain = Max, LPF= 80Hz, HPF=130Hz

Front: Gain = 80%, X-over is set as FULL, hence no LPF/HPF is set

Phase = 0%

How can I improve the midrange sound? What i'm trying to match is to get the similar sound quality of my home speaker (Bowers & Wilkins Zeppelin Air, which also comes with tweeter, midrange and subwoofer)

Will turning down the treble and bass in my headunit help? Please let me know!

Thanks in advance!

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