MBQuart Speaker Upgrade Project
Courtesy of Brian Lewis
Used MB Quart RSB 215 Referenze Premium Component Sets
Purchased from 007 Audio for $199 a set (2 sets), Total Cost $400
Task : Replace all tweeters and 5.25" speakers with new MB Quart speakers
Reason : Improve the sound quality and clarity
I am very satisfied with this upgrade. It greatly increased the clarity/quality of the DSP sound system in my 2000 540. I am sure these instructions would work well on a non DSP sound system as well. No amps were replaced and no speaker wiring ran. This is a direct replacement of 8 speakers inside the car in the stock locations.
FRONT/REAR DOOR SPEAKER INSTALLATION INSTRUCTIONS
REAR DECK SPEAKER INSTALLATION INSTRUCTIONS
Stock DSP Speakers :
Front (24mm Tweeter 8ohm, 53mm Midrange 8ohm, 5.25" Midbass 8ohm)
Back (32mm Rear Tweeter 4ohm, 5.25" Midrange 8ohm
Stock amp can handle 4 ohm load all around.
Next Phases :
Upgrade Front Door midrange (53mm driver) with MB Quart MCD 51 (51mm) midrange driver (4ohm)
Upgrade subwoofer box to M5 Enhanced Bass option