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      04-25-2013, 06:02 AM   #7
Technic
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Drives: 2015 320i
Join Date: Apr 2005
Location: Ft Lauderdale, Florida

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Quote:
Originally Posted by nadidlab View Post
Read the stickies, read many a thread, looking for advice on how to live within a budget of as close to $750 as I can in upgrading a base system. Thus far it seems as if I chew through the bulk of that with $400 on speakers (either two DLS R4s and 2 sw8s, or Gladen x-ion 200 kit). That leaves me with a choice of either an amp like the JL 600 or a refurbed MS-8, but not both.

It seems as if that gives me a choice between a VP described ("less suckage") amplified crap option or a potentially underpowered but good sounding ms-8 solution.

What would you do?
I would do:

- Diamond Audio M341 component set
- SWS-8Xi underseat woofers
- Alpine MRX F35 4-ch amp
- Stereo 2/4 harness

The M341 has adjustable-level tweeter outputs, so no need for coding or DSP to tame the boosted highs of the OEM HU full range outputs. Just set it to -2dB and if further adjustment is needed then use OEM HU tweeter adjustment level. The SWS-8Xi will provide much better and louder bass than the OEM woofers. The MRX F35 has signal sensing and high level inputs built-in. No need of LOC or running remote signal from the OEM HU to the trunk. Set front crossovers to 200Hz HP, underseat woofers to 200Hz LP and that's it. OEM HU keeps powering the rear OEM speakers. Stereo 2/4 taps underseat woofer connector to access front OEM HU full range output signal, the front speakers and woofer inputs.

No need to remove OEM HU for anything, no OEM wires to cut.

That would be about $700 shipped plus the amp cable kit and the OEM tweeter pods.

Anything else will require DSP or coding. For an extra $150 you can replace the MRX amp with two Zapco DC200.2 with built-in full DSP. You will need to run the remote signal from the back of the HU to the trunk in that case.
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-2015 F30 320i, Imperial/Oyster, 8AT: August 2014 ED
-2012 E92 M3 Jerez Black/Rust Brown, M-DCT: Gone
-2008 E90 M3 Melbourne Red/Bamboo, 6MT: Gone
-2007 MK5 GTI United Grey/Grey, DSG: Gone
-2004 E46 M3 Carbon Black/Cinnamon, 6MT: Gone