wiring dual 4ohm subs?

Question

i have 2 dvc subs(infinity reference 1242w).... my amp is 4 channel 1200w amp( fosgate p4004), to get the hardest hitting setting, how do i wire my subs to my amp??? i currently have them running parralel and using a bridged setting but im not exactly sure if im doing it right.. if you run these at parralel, does that mean as a whole,,,, my + and - going to my amp will read at 2 ohms???? or is it cut even lower and im hurting my amp???

Answer 1

Yes, if the subs are 4 ohm DVC then wiring them each in parallel http://i81.photobucket.com/albums/j230/sparky3489/SERIES-DUAL.jpg will result in a 2 ohm load.

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Answer 2

Nominal output on most amps is 8 ohms per side. Most individual speakers are 16 ohms each. Parralleling 2 16 ohm speakers give you an impedence of 8 ohms. You can't read this on a meter because it's dynamic impedence, not static. (usually at 1 Khz) Depending on how many speakers you have on each channel you can wire them in parrallel or series/parrallel (two pairs of parrallel spekers wired in series for 4) Maintain the same impedence on all channels.

When you have your speakers wired and ready to go, check that you have the polarity right by momentarily putting a 9V battery accross the speaker wires where they will connect to the amp. All of the cones should move in the same direction. (You can check this by inserting a needle or thin wire through the speaker grille and rest it lightly on the cone to feel which way they move.) It doesn't matter which way they move as long as they ALL move the same way with the + side of the battery connected to the wire which will go to the + side of your amp.

Parrallel divides the impedence between them, series adds the impedence together.

Series = R1 + R2 + R3 etc = total impedence.
Parrallel = 1divided by (1/R1 + 1/R2 + 1/R3 etc) = total impedence.

To do this most effectively with subs, use a "dynamic crossover" which will direct the bass tones to the subs, mid tones to the speakers and high tones to the tweeters. Make sure that your crossovers are capable of handling the power that your amp provides (300 watts per channel music power or approximately 180 watts RMS per channel)

Answer 3

in case you like those audio device to offer 2 ohms of impedance, in basic terms cord them in parallel. 2 4 ohm audio device under pressure out in parallel will produce 2 ohms of impedance. via "in parallel" connect beneficial lead of a million speaker to beneficial lead speaker of two speaker. cord unfavourable lead of a million speaker to unfavourable lead of speaker 2. Then cord source to a minimum of considered one of the two audio device.

Answer 4

Infinity 1242w