W211 - Speaker only upgrade on Harmon Kardon system




further on the 211 that this guy is butchering up, the aftermarket speakers would make a huge difference if properly installed. obviously they were not properly installed! also I mentioned to remove the mic, but obviously he knows so much... anyways i just needed to put a stop to his train wreck of a post with all the BS...




Metering it is going to do what for you?
Go ahead and introduce pink noise into the system, then analyze it. which will confirm that you don't know what you are talking about. go ahead and try it then adjust the volume as you can see what the mic does to your system. and there is no need to BS us either as I already done it years ago... and know the answer... I use the sa3055 audio control RTA and a calibrated mic.
as for the 212 E class, you will have to add an emergency speaker, as that is what the second set of coils on the speaker is for... explain to me what you would do for that? especially when trying to get the most out of the center channel? something bullet proof that will work with no power applied to it?
Emilner, your vehicle is completely different than his, audio system included. yours is capable of 7.1 DSP sound, not a true 7.1 as home, but similiar in way the DSP works.
there are many ways to approach a project that is an upgrade just do it correctly. you don't have the DSO, or sound optimization microphone so it will not need to be bypassed. If you do not have the hi-line system with the powered sub, your center channel is derived from the Left positive and right negative signals of the door speakers.
The Best of Mercedes & AMG
emilner, for a center speaker that fits with no problems, check out the Hertz HL70.4, it has to be the .4 model though as it is the new version. i just used it in a 5.1 system with a separate tweeter, and I can only say phenomenal!
This sounds like good news. Now if I could get rid of the rattles in the car and thumping in the trunk...
- Have you had any electrical problems thereafter with the car? The owners manual says that nothing is to be connected directly to the battery since it may damage the module controlling the two-battery module system.
- What could go wrong if I get a 4 ohm amp and connect it to the factory speakers as you did?
- If I get to change speakers, may I put three-way's instead of the component speakers?
- If I get a sub, should it be a free-air? or should I get an enclosed sub (like a bazooka or something) and put it in the trunk to have a nice thump?
Thanks!
To take additional pictures I had to remove the side panel etc. and while I was at it, I increased the amplifier gain even more and OEM door speakers handled the extra power easily; it needs to be clean audio power. I have not had time to verify # of audio watts actually reaching each door speaker through Rockford Fosgate 600-4 amplifier, but experience tells me it is well in excess of 100W RMS per door, which is now extremely bad for your ears.
Even though OEM door tweeters are adequately handling additional audio power, I feel a need to turn them down a few DBs at higher volumes; I will soon publish comparitive output graphs . Since this thread is not about just replacing everything, not messing with or bypassing HK equalization and not installing additional audio equalizers, I will add an attentuator (easily done) to control tweeter output. Aftermarket speaker component systems usually come with adjustable crossovers that have slope and attentuation switches.




- Have you had any electrical problems thereafter with the car? The owners manual says that nothing is to be connected directly to the battery since it may damage the module controlling the two-battery module system.
- What could go wrong if I get a 4 ohm amp and connect it to the factory speakers as you did?
- If I get to change speakers, may I put three-way's instead of the component speakers?
- If I get a sub, should it be a free-air? or should I get an enclosed sub (like a bazooka or something) and put it in the trunk to have a nice thump?
Thanks!
- The amp I installed is 2ohm/4ohm compatible. OEM speakers are 2ohm hence I selected a compatible amp since I went back to OEM speakers. I intend to replace OEM speakers with component speakers in the new year. Your amp needs to be compatible with installed speakers. You could use 4ohm compatible amp if you intend to replace OEM speakers with 4ohm ones.
- 3-way speakers will work fine but I have no experience with 3-way 6.5" round speakers.
- An enclosed sub would be the easiest option to install and it will give you a nice thump.
Last edited by pinebaron; Dec 22, 2009 at 09:10 PM.










