Well i returned my Rockford Fosgate Power 8002 and just picked up a new amp it is the Rockford Fosgate Power T10001bd. It has 1000W @ 1Ohm and i was wondering if somebody could draw me a diagram on how to wire my 2 Alpine 1042D from 4ohms down to 1 ohm. Thank you very much.

 

Just run everything parallel. meaning all 4 of your voicecoils positives, to the positive output on your amplifier, same with your negatives.

I mean to simplify, just wire each woofer for 2 ohm by running a jumper from pos to pos, and neg to neg. then run both sets of wires from the sub to the amp and hook up accordingly.

 

for series wiring use this formula - r1+r2+r3......

for parallel use - r1xr2/r1+r2, when your doing more than two resistances use product over sum (only for parallel)

r1 and r2= resistance in ohms ex. 4ohm 8ohm etc.

from here you have to figure everything out, make sure that the amp is 1 ohm stable, manufactures use xxxx@1 ohm as a marketing ploy, some amps realy can handel it, others claim it but the amps runs a higher impedance to protect the amp so basically you think its at 1ohm when in reality it could be running at 8ohms,

hope this helps

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lostsol82 &raquo;</TD></TR><TR><TD CLASS="quote">for series wiring use this formula - r1+r2+r3......

for parallel use - r1xr2/r1+r2, when your doing more than two resistances use product over sum (only for parallel)

r1 and r2= resistance in ohms ex. 4ohm 8ohm etc.

from here you have to figure everything out, make sure that the amp is 1 ohm stable, manufactures use xxxx@1 ohm as a marketing ploy, some amps realy can handel it, others claim it but the amps runs a higher impedance to protect the amp so basically you think its at 1ohm when in reality it could be running at 8ohms,

hope this helps </TD></TR></TABLE>

My amp is 1ohm stable it is the Rockford Fosgate Power T10001bd

 

You guys ramble on, but end up making people more confused than they really need to be. Heres the simple answer to your question. Good Luck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zumiez007 &raquo;</TD></TR><TR><TD CLASS="quote">You guys ramble on, but end up making people more confused than they really need to be. Heres the simple answer to your question. Good Luck.
</TD></TR></TABLE>

Thank you. You are the best. lol So i just use the jumpers that came with the sub to connect the positive to positive and the negative to negative?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zumiez007 &raquo;</TD></TR><TR><TD CLASS="quote">You guys ramble on, but end up making people more confused than they really need to be.</TD></TR></TABLE> Ditto that. I have been installing for over 30 years and I got lost at "for series use this formula" not the info I would start with for somebody wanting to know how to parallel the speakers down to a 1 ohm load.

Yes skrewdriver88 use the jumpers supplied. 94

 

You forgot the parentheses.

R1*R2/(r1+r2)

I agree no need for a formula. I would have refered him here http://www.infinitysystems.com/caraudio/2-4-1.aspx

I would only use that formula for two coils.

Otherwise use. 1
-----------------------------------------------------------
1 + 1 + 1 + 1
-------- -------- ------- ---------
R1 R2 R3 Rn

This will work for any combination

*edit* errrr thats not how I typed it


Modified by nsxxtreme at 1:17 PM 12/30/2005

 

Thank you guys for all of your help. I was lost with all the R this and R that.

 

that sould bang like hell

 

im hopeing