7Post - 7 Series Forum - View Single Post - Hifi System Pro DSP to Harman Kardon upgrade

paprmkr · 09-01-2015, 05:25 PM

I just added a 12" sub with Matts amps setup. The 12" in more than needed. A 8 or 10 could do it. According to the vin I have HiFi and the sound is so much better. No need to replace no speakers

09-01-2015, 05:25 PM	#3
paprmkr BMW Enthusiast 119 Rep 280 Posts Drives: 2024 i5 M60 w/M-Performance ki Join Date: May 2013 Location: Oxnard, Ca. iTrader: (2)	I just added a 12" sub with Matts amps setup. The 12" in more than needed. A 8 or 10 could do it. According to the vin I have HiFi and the sound is so much better. No need to replace no speakers
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