whn

So vic, only speaker needs to be changed when upgrading to h/k not the hole enclosure where stock speaker is?

GreenArcher85

Hi vv,

For my GLK350, I have the standard audio 20. Can I confirm that the HK L7 tweeters and front/rear door speakers would just be simple bolt-on upgrade for the GLK350 like your C-class ?

Have you installed all the HK L7 speakers yet ? How's the sound improvement ?

Appreciate your advise.

Thanks,
GreenArcher85

justthinking

GreenArcher85,

https://mbworld.org/forums/3576604-post17.html

Take a look at the pictures Michael posted when he had his door panels removed..
I believe the tweeter replacement is easy but door speaker would require you to actually take off the door panel..

vic viper

Yes, all speakers are bolt on, but as mentioned above the door speakers rquire a bit more work, the speakers are also riveted in place so new blind rivets are required.

louiet3

Hi vic viper,

Do you know how many hours for each door to replace all 4 speakers so I can verify that the dealer is not over charging?

Do I also need to order the blind rivets? Part # ? How many for each door?

Thanks.

Luis

GreenArcher85

Thanks guys for advise.

VV, Hope you don't mind me asking - out of curiosity ?
For the Total price of the HK L7 tweeters and door speakers, you could already buy an aftermarket speaker like Focal or Hertz. Following what you did, can I simply install the Hertz Speakers (4 ohms as well) ? My objective is just to have a fuller/clearer sound compared to the stock audio 20 speakers.

I do know it will sound better with a amp.

Thanks again.
GreenArcher85

justthinking

Unless I am wrong, but I don't think Audio 20 has line-level out..
If you are keeping the stock Audio 20 HU, then adding an external amp will not improve your sound quality..

vic viper

Three rivets per speaker is required and they have part no. A0009910037
I would guess all four door speakers would take 2 hours tops.

@GreenArcher, as I work at Daimler I can buy the speakers at purchase price, and I doubt that any aftermarket speaker will fit withot serious modifications.
It would be possible to add an aftermarket amp but its not easy as you need to use high to low level converters wich rarely affects sound quality in a positive way..

justthinking

vic viper, out of curiosity, do you know how was the 400w amp from the HK package intergrated w/ HU??

vic viper

It is controlled through the MOST optical bus.

GreenArcher85

@ vv, Just called up the MB dealership here in Valencia, CA. The tweeters are $47 each. I may try this mod first.

Question: With the hk tweeters, did the vocals improve compared to the stock tweeters ?

vic viper

Strange that they are so much more expensive than over here, yes, I felt a signifficant difference with the new tweeters, I got a fuller sound wich wasnt as "sharp" as the old ones was.

When replacing them youll both see and feel the difference of the tweeters, the old ones look really cheap.

GreenArcher85

I also inquired about the price for the door speakers based on vv's part numbers.

HK Front door speakers - A204 820 2102 --> $190 each piece
HK Rear door speakers - A204 820 3002 --> $240 each piece

A little pricey.

vic viper

Yes they are, over here they cost less than half that.

But as the tweeters are performing almost all of the high range audio in the car I think these are the best to replace first.

louiet3

I got my tweeters in the mail today from Joe of allmercedes.com for $40 a piece. I was immediately amazed with the sound improvement!

I'm still waiting for Joe's quote for the front and rear H/K speakers.

Luis

vic viper

Great!

Look here for further challenges

https://mbworld.org/forums/c-class-w...rofit-how.html

louiet3

Great write up! I'll take a look at the front doors this weekend.

justthinking

louiet3, please be sure to share your price once you heard back from allmercedes.com
if the price is good, I will be buying those 6 speakers too..

louiet3

Look for Joe:

Tweeters A2128201002 $ 40.00 each 2
Front A2048202102 $160.00 each 2
Rear A2048203002 $200.00 each 2
Blind Rivets A0009910037 $ .50 each 12
H/K Emblem A4637230060 $ 8.00 Each 4


Their service department also quoted $120 per door to replace the speakers. I'm still waiting for a quote from an independent mercedes shop in Antioch,CA.

Luis

justthinking

Luis, check your PM..

jinsu

Just did it this afternoon, very impressive.
In South Africa, two twitters cost R707, about $100.
Nice post!

aowhaus

anyone know a place that sells the tweeters at a good price?
allmercedes.com no longer exist.

louiet3

www.getmercedesparts.com

Enter 2128201002 when searching by OEM part number.

bcdiamond

Just did swapped out my tweeters per this thread. Whole thing took about 5 min. Wanted to say thanks to Vic for bringing this to my attention. Eventually want to do the door speakers as well, but I think that's prob beyond what I'm comfortable doing.