[tonynguyen]

Hi,
I have E90 base stereo (no amply and no under-seat sub-woofer).
Is it ok to do the Bavsound stage 1 upgrade (so 4 mid-range and 4 tweeters) and add 1 SWS 8 to the under-seat? Can the HU power them all?

Thanks

[tonynguyen]

I am also considering upgrade to Hifi from BMW via a local dealer. This comes with a stock amp. Which option (stock Hifi vs BSW Stage 1) ?

[junniior95]

Originally Posted by tonynguyen

Hi,
I have E90 base stereo (no amply and no under-seat sub-woofer).
Is it ok to do the Bavsound stage 1 upgrade (so 4 mid-range and 4 tweeters) and add 1 SWS 8 to the under-seat? Can the HU power them all?

Thanks

You actually do have underseat subs even on the base system(same as mine) i would recommend the BSW stage 1 & upgrade the subs under the seats to the BMW HIFI subs(8inch) what you have stock subs is a 6inch i will attach pics of what yours and the 8inch look like because i actually just upgraded, huge difference.....along with all of this i would get your headunit coded to HIFI

[junniior95]

Left is the stock base subwoofer, right side is the bmw hifi 8inch subwoofer

[ctuna]

The Head Unit is not enough power for aftermarket speakers
it really isn't enough for before market speakers either.
You would be better of with a package from muiscarNW or
one of the other places that are now making packages
deals. Or at least using similar stuff.

Read this
http://www.e90post.com/forums/showthread.php?t=975602

You can do much better than the Hi Fi with one or these package deals the HI Fi
is not that good ,that's what I had.

There are a lot more drop in packages for speakers now for BMW that you don't
need adapters for and that do the under seat locations from Focal , Gladen
and of course Jehnert they are matched and made to fit. See the speaker list
from the Audio Build Thread.

http://www.e90post.com/forums/showthread.php?t=641323

The Mosconi/Gladen package or a MusicarNW system or something of that nature
will blow all the BMW systems away.

[tonynguyen]

I checked today and in fact I have one sub under driver's seat, but not both front seats.
I decided to go with Stock Hifi upgrade via a local dealer because they can code my system from Stereo to Hifi and I think it's best to let them do all.
Thanks