Benz_Bougie

^ GLK350, not 360 as thread title. fat finger mistake

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Hi All,

I have the 2012 GLK350 that has the premium sound system by Harman Hardon. Actually pretty satisfied with the sound system, however I was wondering if there was a gain adjustment possible for the rear sub, which is under the spare tire.

I saw where the amp is, I was not able to see any gain adjuster. On the display, there is only a fade front-rear, a treble / bass, and surround on or off. No specific gain adjustment for the sub, and no EQ.

Anyone has any ideas ?

Thanks

Amir_AMG

I have never seen one on any benz I have owned, however you can always go to any audio shop and have one installed for not too much $. Worth it if you want to keep the stock system.

Benz_Bougie

thanks Amir. there is one on mine, it's especially 'strange shape' custom made by HK .. just the volume or punch from it is not that noticeable, at least not enough in my opinion. So not trying to add one (or 2), just trying to "up" the volume on the one that's there

ZZGlk

I don't remember if there is a specific adjustment for subwoofer gain in the engineering menu, but it's worth a look. If you search this forum for "Engineering Menu" you can see the key combinations to enter it and what to do to make your changes stick.

There are adjustments for the standard audio system in one of the menus. Not sure about the HK system.

That's why you usually don't see EQs and exterior adjustments for audio on MB. They are meant to be accessed through the Engineering Menu.

Take your time and read the instructions carefully as you have lots of options to fine-tune many of the car's settings in this menu.

Benz_Bougie

Thanks a lot ZZGlk, that's very helpful. Will have a look.

Amir_AMG

I was was referring to a knob to adjust just the subwoofer, not the subwoofer itself. Many HK systems come with a sub, however there is nothing on the amp or sub to adjust the gain or boost the bass. You can get something to adjust the gain solely for your existing sub(add more bass)

Benz_Bougie

So I was in the engineering menu, and I couldn't see / understand whether there was a proper EQ or sub adjuster. I need to look further, and next time I'll take screen pics.