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irondiezl3
01-10-2007, 10:52 AM
i have 4 polk db675 in my car. my headunit gives them 30rms they handle 60 rms.
what will running a good quality amp do for me? is it just to make it cleaner and louder or will it add some bass also? one more thing will i lose all my eq settings i can use on my headunit?

pimpedout97x
01-10-2007, 10:59 AM
whats your budget?

this right here does 60w rms x 4

http://acaraudio.com/product_info.php?manufacturers_id=15&products_id=227

theres other ones that are prally cheaper, like hifonics, power acoustic, etc....depends on what you wanna spend. but that kicker is nice

pimpedout97x
01-10-2007, 11:00 AM
this doesn 50w x 4

http://acaraudio.com/product_info.php?manufacturers_id=30&products_id=1664

irondiezl3
01-10-2007, 11:51 AM
did u add an amp to your speakers? whats the sound difference

Flipx99
01-10-2007, 11:58 AM
diamond audio 3 400.4 50w x 4 RMS

pimpedout97x
01-10-2007, 12:00 PM
did u add an amp to your speakers? whats the sound difference

i have an amp for my speakers, its not installed yet. but the difference between powering speakers off the HU vs an amp is night and day difference.

what HU do you have? it prally gives less than 30w....most are around 24-26w rms....

helotaxi
01-10-2007, 12:33 PM
Actually most struggle to do 16W x4 with less than 10% distortion. The HU "amp" is only an IC, it does **** for heat dissapation and distorts like crazy when pushed at all. Adding an amp is a must in my book if bothering to upgrade the speakers.

You EQ functions will still work just fine with an external amp, and they maight actually add something other than distortion.

pimpedout97x
01-10-2007, 01:05 PM
ya the HU will distort at high volumes.

needless to say, its worth it to buy an external amp everytime

irondiezl3
01-10-2007, 02:09 PM
jvc arsenal series

model number is kdr-8500 do some research its pretty nice 31true rmsx4 its got an external amplifier thats why that connects to the headunit but i still want to give my speakers atleast what they can handle which is 60rms never had one but people say when amp added it sounds soo much better but i always wondered whats so much better if its loudness i dont really need that these speakers get more than loud enough for me and clean to the point where i wouldnt spend the extra money unless ill hear different things i couldnt before and there was more bass to it.

helotaxi
01-10-2007, 08:59 PM
The amount of bass that you get is giong to depend on the speakers and the installation thereof rathe than the unit powering them. If you want anything that resembles actaul bass response, you need a sub.

BTW, any basic amp is still going to be better than that HU amp, even if it does 30-whatever watts. The distortion is still going to ****.

irondiezl3
01-10-2007, 10:21 PM
disconnect wire connection from headunit and run speaker wire from amp to the speakers instead right?

mlstrass
01-11-2007, 06:20 PM
disconnect wire connection from headunit and run speaker wire from amp to the speakers instead right?


Yes that'll work.

GF's car had dB650's and I ran them off the HU for a few months and they sounded like crap, just no volume and distorted easily.

I threw a cheapo Profile 4 channel in there a few months ago and it's night and day better, but still no midbass out of those speakers and the tweeters are borderline bright for my liking, so when I'm in her car I EQ them back. She's thrilled to death of course.

An amp will make a MAJOR improvement to your set up. millionbuy has the Profile amps for cheap and they're solid budget amps according to all the forum research I did on them.

Frankensuby
01-11-2007, 06:36 PM
the DB line Polks have the least midbass punch out of the 3 lines. Until you use sound deadening (ie - Raamat) your midbass response will be less than thrilling.

I would suggest the Alpine MRP-F450(200$), Diamond Audio D3400.4 (250$ rough), Phoenix Gold R5.0-4(120$), and there are some others, but work limits my searching ability.

What is your budget?