subwoofer confusion???!!!

[Ninja8)]

good evening everybody...just finished replacing 2 cv joints and boots str8 after work and decided to hook up me new amp i got tadae.

Its a fusion amp like this one: http://www.getprice.com.au/Powerplant-2-Channel-Amplifier-PP-AM60020-Gpnc_152--35353660.htm

now i have 2 dual coil pioneers and found out that its never gonna run them 2 lol...so i decided to parallel wire into just one. cars wiring is good..been doing it for ages lol. but when i go to run the sub...the bass itself is REAL REAL low..even with the amp on max and volume pumping.theres just no bass ??? storys the same when i tried on my single coil fusion sub.

BUT...if i was to change HPF (i think) the subs will play treble just fine. its only the bass that just wont BLAST lol...

share some thoughts people...im gonna try muck around tomorrow and hopefully get somewhere.

[wrx_lou]

How do you have the amp wired to the headunit?

[Ninja8)]

rem into the spare wire thats for amps..cant remember the name lol..rcas.. and thats it for the head deck lol..it cant be the headdeck coz i was running my two pioneers on a soundstream amp b4 new years and it was all pumping. havnt touched the wireing. but i did recheck and it was all fine....

umm i gota cap which has 12v going to the cap and from the cap into the amp + ....this has never happened to me b4 lol...guess theres a once for everything

just wanna get it sussed lol

[DRFVDR]

try running the 2 voice coils in series ????

[Guest boostin]

I've got a DVC Pioneer running off an 800W 4 channel amp. The 4 channels are bridged to 2, and each of those runs 1 coil. I just had to make sure the amp was receiving a mono signal.

Try running each subs coils in series, but the 2 subs in parallel if you get what I mean. Then the amp will see 4 Ohms. Just remember that you're effectively trying to run 4 subs off a 2 channel amp. I don't think that amp will have enough grunt to drive them.

[Ninja8)]

yeah it definitely wont have the g force to pump the 2 pioneers....that i know

however my problem is the fact that theres not much bass at all with everything set on max....im currently bridged to a single coil fusion 12"

[wrx_lou]

You should be running the amp bridged with + to + and - to -. the remaining - and + on the sub should be wired togather.

[Guest boostin]

 wrx_lou said:

You should be running the amp bridged with + to + and - to -. the remaining - and + on the sub should be wired togather.

I've never heard that before!!

[wrx_lou]

 boostin']

[quote name='wrx_lou said:

You should be running the amp bridged with + to + and - to -. b]the remaining - and + on the sub should be wired togather[/b].

I've never heard that before!!

Means your running the voice coils bridged in series.

I probably should of said that you run the - and + from the amp to the opposite coils.

[Guest boostin]

Doh, I read amp, not sub! My bad!

[wrx_lou]

lol, you had me second guessing myself for a second.

[Ninja8)]

yea thats the way the dual coils were wired up...but still no big bass. im sure its prob one of the wires...

will be looking more into it tomorrow.

[wrx_lou]

have you tried running to one coil only? you should still get sound.

[Guest boostin]

 wrx_lou said:

have you tried running to one coil only? you should still get sound.

Yeah, just don't do it for too long. Its not supposed to be too good for the sub.

[Guest boostin]

Actually, just had a thought. Stick both speaker wires on your tongue. A mate of mine did this once to check for power, thinking it can't be much worse than a 9V battery. Lets say he won't do it again!! ;D

[wrx_lou]

well technicaly neither would be running the coils in series as the one on the - side is recieving less power

[Scoobydoo]

It's actually fine to run a sub off only one set of voice coils. Some subs have specifications set for it. It just means you aren't getting the full potential out of it.

[legacy666]

sounds like you amp hasnt got a low-pass filter. is there a switch on it somewhere. should be a high-pass(treble freq) and a low-pass(bass freq) switch somewhere.

[Scoobydoo]

What kind of headunit do you have? If you are running off the Mono output, then subwoofer hasn't been turned off, has it?

Also make sure there is no treble coming through. That's a sure fire way of killing your sub quick smart.

next thing to check is the gain and subsonic dials set your subsonic to 40Hz and your gain to about half.