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Tweeter attenuation
The tweeter can be attenuated by cutting one, or both of the wire loops on the crossover.
LOOP 2
TW OUTPUT
No loop cut : 0dB
Cut loop 1 : -2.5dB
Cut loop 2 : -3.5dB
Cut loop 1 and loop 2 : -6dB
Specification
Model OPTISOUNDBMW8-V4
Configuration 1-way
Speaker Size 8" (200mm)
Peak/RMS Power 345W/115W
Sensitivity 90dB
Frequency
Response
Impedance 4Ω
Vehicle
Manufacturer
Fitment 1-series (E81/82/87/88,
Grill Included No
Recommended
Amplifier
40Hz - 2.5kHz
BMW
F20/21),
3-series (E90/91/92/93,
F30/31/34/35),
4-series (F32/33)
5-series (E60/61,F10/11)
6-series (E63/64, F12/13)
X1 (E84), X3 (F25)
POWERBOX65.4M-V7
OPTISOUNDBMW4-V4 OPTISOUNDBMW4X-V0
2-way
4" (100mm)
345W/115W
90dB
80Hz - 25kHz
4Ω
BMW
1 series (E81/82/87/88)
3 series (E90/91/92/93)
5 series (E60/61)
X1 (E84)
No
POWERBOX65.4M-V7
LOOP 1
INPUT
2-way
4" (100mm)
345W/115W
90dB
80Hz - 25kHz
4Ω
BMW
1-series (F20/21)
3-series (F30/31/34/35)
4-series (F32/33)
6-series (F12/13)
X3 (F25)
No
POWERBOX65.4M-V7
6
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