|
|
|
|
|
#1
07-31-2002, 02:28 AM
|
||||
|
||||
|
Factory radio on 92 400E, weird phenomenon
Hello all. I want to know if anyone has ever noticed this on there 91-93 mercedes W124 radios (upgraded version with seperate amps). With the bass and treble all the way up, and your slowly increase the volume, you can hear certain spectrums (like mids and highs) decrease to compensate for the increased bass. And whenever the bass hits, the treble suffers, and makes for a very weird sounding system when turned up mid to high. The only time it sounds good is when its at low volumes.
MY question is, what causes this? Is it the puny amps? It seems like they have an active equalizer system like that of the Bose, so that is doesnt distort. Is there a way to take the amps apart and disable this, so that you can max out the speakers? I DONT WANT TO PUT AN AFTERMARKET IN IT, so please dont recommend that. If it could be done, I WOULD put aftermarket amps in. I just want to keep the factory head unit. Any info is greaty appreciated. -Andy
__________________
93 300D 2.5 Turbo, Black/Palomino 273K 09 E350 Black/Black 41K 
|
|
#2
08-01-2002, 12:09 AM
|
|||
|
|||
|
I have this same system on a '93 400E, and I have not noticed the effect you are mentioning. I have never tried to turn both bass and treble ALL the way up, but I have certainly played the system to the point it began to clip. It is possible that there is some kind of clipping protection circuitry, that is creating your problem. Since bass draws significantly more power than any other part of the audio spectrum, it may sound as though the higher frequencies are getting clipped off.
I also wonder if you might have a weak battery? (I'm really guessing on this one!) Bass draws more amplifier power, which in turn requires more amperage from the battery. If the bass draws more, maybe it reduces what's available to the other amps. I think the guys with mondo stereo rigs use specials caps that store power for just this purpose. It evens out the draw on batteries, so they don't stall! I'm sure someone with more edimication than me can really answer that idea! Good luck! Mike
__________________
Mike in Denver '93 400E Now DEAD - Rear ended and totalled. Replaced by '02 C32 AMG - FAST!
|
|
#3
08-01-2002, 01:48 AM
|
|||
|
|||
|
It sounds to me like bad capacitors in the radio or tuner box ( it is a two piece radio ) If you want a better diagnosis you can e mail or call my repair shop and Cleeve would be happy to help you!
858-373-0596 or lajollaaudiorepair@pacbell.net. Scott@lajollaaudio
__________________
The Mercedes Specialists Since 1986
|
 |
| Bookmarks |
|
|
Linear Mode
