[Kieral]

SHORT VERSION:

I've done the F30 Alpine Hifi upgrade on the base audio HU_CHAMP2/ENTRY system. Coded via E-SYS. It's massively disappointing. (have not upgraded the 6.5" subs yet).

I have done the same thing on an E9x and it was amazing, but the Alpine kit is also noticeably higher quality on the E9x

Question: Is the HU_CHAMP2 output gargabe?. Would retrofitting an ENTRY2 / NBT / EVO system A. Work with the Alpine kit, and B. Yeild any improvement? Other things to try: using HiHi 676 instead of HO_Wort Alpine in coding, and/or upgrade the 6.5 subs to 8".

Thoughts? Anyone done the kit, then added subs or a different HU later and notice any difference?


LONG VERSION.

I did the Alpine HiHi upgrade of the base audio in my E91 LCI years back and it was AMAZING! totally transformed the audio.

I just completed the same upgrade on my '14 F30 320d Base Audio (2 subs, 4 speakers all powered by the head unit, no tweeters). I coded the HU_CHAMP2/ENTRY HO_Wert HiFi / Apline Retrofit

... now, comparing the official Alpine retrofit kits between the E9x and F3x, it is immediately obvious the E9x kit is a higher quality kit. That said I'm shocked how average the Alpine F3x kit is and the only explanation I can think of is they didn't want it to be better than the HK or B&O systems.

I've not changed the subs yet, I have the 4ohm HK subs and enclosures ordered - yes I realise the Alpine amp expects 2ohm, I did the same on the E91 and it was fine. I'm really hoping that improves things. The mids-range in particular are muddy and weak. Apart from the tweeters lifting the sound stage, it's basically the same quality, only you can go louder without it getting worse.