If the crossover allows, try setting to -4db. This would help, it's also the recomended setting (at least on the polykevs) when you have the tweeters so distant from the woofers. The amp sounds ok. Other than adjusting the crossover, you'd need to try what I suggested in #1 & #2.

Good luck!

 

[QUOTE]Originally posted by whiteGoKart39
[B]I went to my friend's shop to check out some speakers, my friend recommended me with Focal Utopia line which are 180 W and 165 W3.

 

I would also recommend the Diamond Audio's

 

thank for the help! i just now tune the xover down to -4, it definitely helped!!

**but its make some noise even when the headunit is off ,, is this normal??

 

are you picking up noise if you unplug the rca preamps from the amplifier? sounds like interference at the amp side. what kind of noise is it?

 

Cool.

For the noise, take it back to the shop and let them figure it out. They might have gone the easier route when installing the amp. It might be that the amp's power is triggered by the accessory switch rather than the HU turning on. Someone who's using stock HU with an amp may be able to help you here. Most aftermarket HU's have a remote turn on lead that turns the amp on/off with the stereo. I don't know how this is taken care of with the stock HU, don't think it has a remote turn on lead?

 

When I was using my stock HU, I tapped the power antenna wire, and used that as a remote turn-on. It works whenever the HU is on, not just when the radio is selected.

good luck,
gil