rudy

hi all
newbie here. really like the info on this forum for those of us who do more than just drive our cars. anyway, i was wondering if any one has added a sub (or two) and amplifier to the stock HK system (mine is in the '05 c-class). i have read about a feedback loop issue with the auto pilot on the bose system and it might be my imagination but i think the HK system has the same type of feature. any thoughts?

wingless

The stock '05 HK could definitely use more power. There should be no problem with properly adding additional amplification. I have not seen any posts for this done to an '05.

rudy

i'm going to check wtih my local hifi shop that did my previous install (2002 chevy blazer) the first of the week and see what they reccomend. i'll let you all know.

Deutscher_Wagen

Should be easier than with Bose...

Bose uses a proprietary voltage (4.2Volt, I think), and most other conventional car audio equipment uses 12V. If the HK system uses 12V it should be fairly easy.

I had a Bose system in my VW, and when I added subs to it, I had to choose between using additional equipment to keep the Bose setup or replace the Bose HU & amp and use 12V equivalent.

I have the HK system and I think it ROCKS the way it is; but then again I don't roll down the ghetto with my driver seat reclined to the back seat blasting Dr Dre (at least not to often)

808_230K

wouldn't mind a small sub to give it a little bit more kick, but I'm not in a rush since I think it sounds fine

LiquidSmile

I have an 03' not sure if it is the same setup, but I have a JL Audio Amp and 12" Sub Installed in the trunk to the factory stereo.

Deutscher_Wagen

03 would be Bose, right?

Did you install it or did you have a shop do it?

mike82y

i have always wanted to add an additional subwoofer to my bose system on C240 but i am totally cluess ín this field and have absolute no idea how car audio actually works.

I remember seeing one member on the forum with a JL subwoofer in his trunk. it would be interesting to know what we need to add and the costs.

Many thanks,

Mike

mike82y

it would be even better if the subwoofer is removable!

Jim Banville

If you have a sedan and are worried about space, you might be able to put a free-air sub (no box - trunk is the closed air space) in the rear deck.

chitownc32

i got 2 10 in l7's installed last week to my stock radio on my c32 the place i got it done at is call ABT electronics in glenview illinois, the system pounds with my 1200 watt kicker amp i have got the sub facing inside of the car so when the seats fold down you can see the stainless steel front they put on also when i pu the seats back up i has them remove the ski bag option so when i put down the rear arm rest it goes straight through the trunk the biggest problem im having now is that witht the speed sensative volume control i have taken back 3 times the volume adjusts itself by it self its annoying they should eb able to bypass this if not someone there is going to get me yelling and screaming at them they are pros they should be able to do anything it really sucks whe you spend a lot of money and theres still problems we'll see what happens

mike82y

any pics?

chitownc32

i will post in about 5 mins

chitownc32

here are some pics at this link my car is really dirty im about to go get it washed

http://community.webshots.com/album/275717726YCBfin?914

mike82y

thanks for the pics, the sound system looks great.
btw. i found this thread regarding the problem that u are having. hope it helps!

https://mbworld.org/forums/showthrea...ight=subwoofer

mike

LiquidSmile

I had a shop do it. It's pretty Much Removable if I have to carry something

chitownc32

thanks alot mike182 i couldnt have gotten better help with that Im guessing this problem might not be able to get fixed which will mean that the car audio place might give a tv under cost they have greta customer service ill keep you updated on what happens

rudy

hi all.....i finally got some time to drop off my car with the nice folks @ Advanced Audio here in Naples (FL). after about 2.5 hrs of labor they had things in order....the stock system matches the 10" memphis and JBL BP300 amp well, though i did have to turn the gain down a little...i'm sure the shop had it maxxed out.. so far so good with the speed sensative volume not distorting things......i'll give an update after a few days.....rudy.

rudy

after two days of test listening i determined that the new HK system does suffer from the dreaded feeback loop b/t after market subwoofers and the speed sensative audio. so i called the dealer........yeah right! they did't know and the fellow that did was out until monday. so i decided to see if i could figure it out. using this exellent post: https://mbworld.org/forums/showthrea...ight=subwoofer
i started to snoop and low and behold i found the magic mic and after removing it all my problems disappeared....now that is true utility from this board...thanks all.

rudy

smartjay28

if you guys wanna add a sub and an amp, just use a LOC(line output converter). takes the highs and low signal, filter out the highs and uses the low for the bass. run the power wire, find a remote wire(beats the crap out of me) and hook it up. i havnt done anything to the benz yet but i should once i finish w/ my plan w/ my acura

miroj

You mean to say that at your age you already need a hearing aid.

wingless

There is no problem with me hearing good, loud, music.

The '05 HK sound system is fine, but on my vehicle it spends way too much time at the maximum setting, wanting more. That is not right.

On my wife's Cayenne Turbo there is so much available volume that the maximum setting exists, but has not been used. That's what I'd like on the MB.

miroj

Perhaps what you need is a photograph of what happens to peoples ear bones when they are so thoughlessly abused. You do of course realise that sound is only loud for a narrow interval. If the overall amplitude exceeds the performance of the cochlear then the process of adaptation kicks in and the sound is effectively reduced by the nervous system.

My advice .... enjoy your music .... in 20 years you wont be able to hear it.

rudy

wingless...don't cha love unsolicited advice? like you can't make an informed decision without it. let''s see you have a an 05 c320 coupe and your wife drives a cayanne turbo so i'm guessing that your household income is bumpin 6 figures and that more than likely you make executive decesions all day every day and that, like me, you enjoy the finer things like listening to the full range of music as it was intented...not through the crappy stock 6.5 inch woofers that hit about 60 hzs lows (if you lucky) in the back deck. i'm just trying to get the same sounds that i get from my HT set up with klipsch reference speakers, an SVS sub and sony es amplification and digital processing.......but i digress.

in conclusion of this post, yes there is a ambient sound feedback system with the new HK stereo in the 05 c-class similar to the old bose system. for the addition of a subwoofer or woofers this system needs to be modified....i found that the easiest way to do this was to remove the mic for the feedback system.......and now i can enjoy my music at full range w/o sudden spikes in volume thast might cause cochlear damage. so off i go to bump 50 cent in the club up and down my street!!! sweeeeeeeeeeeeeeeeeeeet! rudy

wingless

That's what I'm talking about.

Yes, I do suffer from C.H.W. but I am refusing treatment for this ailment. (C.H.W. is Can't Hear Wife)