do you think my setup is wrong?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=97825
Printed Date: April 28, 2024 at 9:04 AM
Topic: do you think my setup is wrong?
Posted By: ae100pro
Subject: do you think my setup is wrong?
Date Posted: October 10, 2007 at 5:09 AM
my items are below
1 x alpine pdx1.1000 monoblock amplifier
2 x Soundstream xpro 12 300watts rms woofer
i am using 2 dvc woofer at 4 ohms but i dont see any heart pumping action
the woofer is basicly quite strong but i dont feel as much bass for the amount i paid
do you think my setup is wrong??or not enough power from the car??
tq
Replies:
Posted By: jvillefinest
Date Posted: October 10, 2007 at 6:24 AM
first off your only getting half the power you paid for. check your tuning with your gain and freq...you might just be getting what you paid for. ------------- 2007 Acura TSX
SQ setup in the works
Posted By: haemphyst
Date Posted: October 10, 2007 at 8:11 AM
jvillefinest wrote:
first off your only getting half the power you paid for. check your tuning with your gain and freq...you might just be getting what you paid for.
Why do you say that? That amp is 1kW into 2 or 4 ohms. Two, 4 ohm DVC woofers will get him a 4 ohm load if he's wired it correctly. It's not shutting off, so he DOESN'T have them all wired in parallel... Even if they were all wired in series, for 8 ohms, that amp still makes WAY more than 600 watts (required to power the woofers to full capacity). My guess is that he has one of the woofers wired backwards. Reverse the input leads on ONE of the woofers, and see if that helps. ------------- It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: ae100pro
Date Posted: October 10, 2007 at 9:59 AM
my subwoofer is wired exactly right on the diagram below 
do you think wiring the + and - will affect? my amp + output and i go for - and - i go for +? i can feel if the subwoofer is wired wrongly,as the bass will sound different
Posted By: ae100pro
Date Posted: October 10, 2007 at 10:01 AM
btw,i have tune my amp to the max , my heart isn't pumping,only the hood is pumping like ****
Posted By: sarcomax
Date Posted: October 10, 2007 at 10:52 AM
What kind of box are these subs in? I would reccomend not tuning the amp to the "max", but rather tune it correctly. The + and - make all the difference in the world. I would triple check your wiring, and if it looks good, I would wire up only one sub and see if it plays louder. if it does, then I would wire up the other sub again by the diagram, and if it still plays bad, I would take it to a shop. -------------
Posted By: ae100pro
Date Posted: October 10, 2007 at 11:43 AM
ported custom made enclosure i guess i just take a little time and check on the wiring again which is better?2 or 4 ohms?
Posted By: jvillefinest
Date Posted: October 10, 2007 at 12:37 PM
haemphyst wrote:
jvillefinest wrote:
first off your only getting half the power you paid for. check your tuning with your gain and freq...you might just be getting what you paid for.
Why do you say that? That amp is 1kW into 2 or 4 ohms. Two, 4 ohm DVC woofers will get him a 4 ohm load if he's wired it correctly. It's not shutting off, so he DOESN'T have them all wired in parallel... Even if they were all wired in series, for 8 ohms, that amp still makes WAY more than 600 watts (required to power the woofers to full capacity).
My guess is that he has one of the woofers wired backwards. Reverse the input leads on ONE of the woofers, and see if that helps.
good call...never realized that it was at full power at 4ohms. my bad. ------------- 2007 Acura TSX
SQ setup in the works
Posted By: haemphyst
Date Posted: October 10, 2007 at 1:37 PM
ae100pro wrote:
which is better?2 or 4 ohms?
That amp it won't matter. 1kW into both loads.
jvillefinest wrote:
good call...never realized that it was at full power at 4ohms. my bad.
NP. I just happen to have that amplifier, and I've put it through a few paces. 
------------- It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: aznboi3644
Date Posted: October 10, 2007 at 10:24 PM
ae100pro wrote:
btw,i have tune my amp to the max ,
my heart isn't pumping,only the hood is pumping like ****
what does this mean??
So you turned the gain all the way up and the bass boost all the way up so its "louder"
And who built this "custom ported enclosure"
could have been custom as in just built but not custom for your setup
Posted By: 2fas4ya
Date Posted: October 11, 2007 at 1:42 PM
If the hood is pumping and not your heart maybe you need to try putting the subs in the trunk. Which way do you have the port facing on the box? ie. front, rear, down, up, sideways. Try moving your box around and see if you get any better sound after you check the wiring of the subs. Try unplugging one side of your rca's at the amp at a time and make sure getting input from both sides.
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