[crazybones]

Having read through most of the posts for the last 12 months on this forum, it appears that I am looking at 2 possible upgrade paths for the standard 6 speaker system in my e90. Have I missed anything? My preference is the Blaupunkt route, but I am a little concerned about the lack of crossover separating the mids and tweeters. Is the filter in the L7 tweeter wiring sufficient and should I look at upgrading the mids as well?

Blaupunkt THA555:

Pros:

• 8” sub
• Plug’n’play – the amp plug straight into the head unit – no need to cut wires.
• Use of L7 tweeters for improved high end

Cons:

• Mid’s remain stock
• Warranty problems?
• No crossover?

Parts:
L7 (Top Hifi) Tweeter x 2: 65136964013
INNER LEFT MIRROR TRIANGLE 51337120659
INNER RIGHT MIRROR TRIANGLE 51337120660
COVER, WINDOW FRAME, DOOR FRONT LEFT 51337171201
COVER, WINDOW FRAME, DOOR FRONT RIGHT 51337171202

Alpine:

Pros:

• BMW supplied kit – no warranty issues
• Tweeters and mids supplied and should be matched – no crossover issues.

Cons:

• Subs remain standard with no real upgrade path using the Alpine amp
• Not plug’n’play - Involves cutting speaker cables.

Parts:

E90N 330d RETROFIT KIT HIFI SYSTEM ALPINE
RealOEM.com Home => Select another car => AUDIO, NAVIGATION, ELECTRONIC SYSTEMS => ACCESSORIES AND RETROFITTINGS

No. Description Supplement Qty From Up To Part Number Price Notes
i FOR VEHICLES WITH
HIFI SPEAKER SYSTEM = NO
AND
HIFI SYSTEM PROFESSIONAL DSP = NO
S676A=NO

S677A=NO
01 RETROFIT KIT HIFI SYSTEM ALPINE 1 65410445684 See EBA 0445685
ONLY IN CONJUNCTION WITH
-- COVER, WINDOW FRAME, DOOR FRONT LEFT 1 51337171201 $32.64
-- COVER, WINDOW FRAME, DOOR FRONT RIGHT 1 51337171202 $32.64

[illingworth22]

Originally Posted by crazybones

Having read through most of the posts for the last 12 months on this forum, it appears that I am looking at 2 possible upgrade paths for the standard 6 speaker system in my e90. Have I missed anything? My preference is the Blaupunkt route, but I am a little concerned about the lack of crossover separating the mids and tweeters. Is the filter in the L7 tweeter wiring sufficient and should I look at upgrading the mids as well?

Blaupunkt THA555:

Pros:

• 8” sub
• Plug’n’play – the amp plug straight into the head unit – no need to cut wires.
• Use of L7 tweeters for improved high end

Cons:

• Mid’s remain stock
• Warranty problems?
• No crossover?

Parts:
L7 (Top Hifi) Tweeter x 2: 65136964013
INNER LEFT MIRROR TRIANGLE 51337120659
INNER RIGHT MIRROR TRIANGLE 51337120660
COVER, WINDOW FRAME, DOOR FRONT LEFT 51337171201
COVER, WINDOW FRAME, DOOR FRONT RIGHT 51337171202

Alpine:

Pros:

• BMW supplied kit – no warranty issues
• Tweeters and mids supplied and should be matched – no crossover issues.

Cons:

• Subs remain standard with no real upgrade path using the Alpine amp
• Not plug’n’play - Involves cutting speaker cables.

Parts:

E90N 330d RETROFIT KIT HIFI SYSTEM ALPINE
RealOEM.com Home => Select another car => AUDIO, NAVIGATION, ELECTRONIC SYSTEMS => ACCESSORIES AND RETROFITTINGS

No. Description Supplement Qty From Up To Part Number Price Notes
i FOR VEHICLES WITH
HIFI SPEAKER SYSTEM = NO
AND
HIFI SYSTEM PROFESSIONAL DSP = NO
S676A=NO

S677A=NO
01 RETROFIT KIT HIFI SYSTEM ALPINE 1 65410445684 See EBA 0445685
ONLY IN CONJUNCTION WITH
-- COVER, WINDOW FRAME, DOOR FRONT LEFT 1 51337171201 $32.64
-- COVER, WINDOW FRAME, DOOR FRONT RIGHT 1 51337171202 $32.64

What is the warranty problem with the Blaupunkt option?

[AlanQS]

Some people have had problems with their Blaupunkt amps and they don't have the greatest after sales service - it's the hassle factor.

If you buy the Alpine from BMW and especially if they fit it, the warranty is all with your dealer.

[trixman]

My Blaupunkt went up in smoke the other day, but its only 6 months old so should be covered under warranty. I believe the Blaupunkt is more powerful than the alpine (guessing, havent bothered to check), but in reality I'd like something even more.

I have the earthquake subs in the seats and the L7 tweeters, but its still lacking for me (will be fine for most though, Im just picky)... trying to figure out what else I can do to add to it. Unfortunately, where the car is located right now (spain) there is nobody any good at audio installs... honestly, if there was, you would clean up here...

[zoltan_tms]

I'm planning to install the Alpine hifi retrofit, but i'm not sure if doing this will add aditional power to the SWS subs that i also plan to install,from the pdf install instruction pictures i understand that there is some work with the wires near the front door/floor, but i don't know where are they going(to the subs or not).Please help me with this question.
Thank you in advance!