Atlast I completed my setup with available stuffs but not satisfied
Today I installed new system for my Wagon R Stingray model replacing stock speakers (keeping head unit). As per installer's advice I installed the following at Car Audio Zone, Chennai (Installer Saravanan)
Blaupunkt EMA 455 Amplifier (through Line Out Converter from Head Unit)
Polk Audio DB6501 Component Speakers for front
Polk Audio DB651 Coaxial Speakers for rear
Sound quality is not good. Bass is boomy and distorting. Installer first tried to convince me that the problem is with the head unit but we tested with other head units as well. Same problem. Then Installer reduced the distortion and boomy sound but at the cost of bass. Now the bass is similar to my stock speakers (No bass). He reduced it in Amp section
Could anyone in this forum where the problem could be? Also someone direct me to a good installer? I'm not at all happy with the installation
Appreciate your inputs
hi visanj,
I almost have the same setup like you...
Let me explain how these guys works - atleast the guys who install.
1. They will fit everything and once they know that we are not satisfied with the sound they will say that the stock head unit is the problem, once we change that the sound will be good ( but changing the head unit will give a change in the quality of the output, but not a 100% drastic change ).
2. Only few of the guys who knows how these things works and they wont know much about technical stuffs (like matching the Amp, speakers and subwoofers technically).
Let me tell you how much hiccups we have in the ICE.
1. Head Unit
2. Hi Low Convertor For OE ntergation
3. Amplifiers
4. Speakers
5. Subwoofers
Any one of these is component which is not matching the other will always have problem and will get a hit in the quality.
As far the speakers concerned Polk DB6501 and 651 is really good pair of speakers, if you would have seen reviews its always rated more than 4.5 out of 5.
At this point i would suggest you to ask those guys to change the amp if possible.
Try for a Rockford fosgate, kicker or focal as per your budget & check what kind of cables they have used to drive the speakers from amplifier.
Just check the following things to understand more about the installation.
- Check whether a Fuse installed between battery and the amplifier (for safety)
- check who is the manufacturer for the Hi Low Convertor.
- Check what kind of cables they have used for installtion (there are cables which costs more than 10K and there are normal speaker cables also)
- Check the the polk component crossover settings.
Its a huge topic man

, Let me know if you need anything, am glad to help you out.