New to the audio game

I dont post a lot here but I really need some guidance and advice...

Currently running in my DC:
Kenwood KFC-X173 component speakers up front

Kenwood KFC-1664s in the rear

4 channel amp Kenwood 8405

2-JL 10w1v2 subs

1-JL amp 250/1 black one not the silver I don't know if there is a difference other than color

I am just wondering how I can boost my current system(louder and clearer ) and I'm
Having trouble with my rear speakers they were recommended by crutchfield but they can't seem
To handle the power from the amp they distort bad I know the amp is rated at 60x4 rms and those rears should handle that but they can't..i don't know if I did something wrong or just need to find new speakers..and third of all my subs are in a box I bought off Amazon just a basic enclosed box..would a ported box deliver louder bass..If there are threads you could point me to as well that would be great thanks!!

 

Couple of things:
You have a gain knob for the "A" channels and the "B" channels. Turn the B one down a little bit and make sure the HPF is on and set appropriately.

Second, you really want most of your music coming from the front, not the back. You have components up front. When you go to a concert, do you face the band or turn your back? Your ears are designed to hear from in front of you.

A ported box will be louder, but you have to make sure it is designed specifically for your sub. If not, it will not be tuned properly and ( in a nutshell) sound like poop on a stick.

 

Awesome thank you very much I will get on that ASAP!!

 

Might also do some research into tuning the gains using a DMM. This would be useful for tuning and balancing all 3 channels, front, back and sub.

Unless I were greatly overpowered on the sub channel, which you are not, I would start by setting the sub gains to get max power from the sub amp without clipping, then tune the front and rear channels to a power setting that balances with the sub.

Lastly, like already mentioned, the rear door speakers should be for rear fill only, as they tend to muddy up the sound stage, but some people like the 4 speaker sound in an auto environment, your call. But if you carry passengers, rear speakers help them quite a bit. I have my rear door speakers coming off the HU power and just use the fader to control how much of them I use. Normally off unless I have someone in back.

 

KFC-X173: frequency response: 63-24,000 Hz

80Hz is like the lowest I would go based on the advertised freq response for these speakers.

 

Are you currently using an aftermarket head unit? If not, that would be something I would install immediately if I were you. You will notice a great improvement in sound quality. I would go with a nice Kenwood Excelon for the 5v outputs.

 

get another amp

 

While setting your gains like that is a good idea, it is over most people's head. Most people think its a volume knob.