Bipolar wiring

TNTHOMETHEATER

I want to build a bipolar surround speaker from some current drivers i have. Two 4 ohm tweeters and two 4 ohm woofers infinity ref 2000.5 crossovers for each cabinet. I have the cubic volume all calculated but want to insure i wire them correctly inside. Can someone help?

fbm211

I bet ben could....Or GV

Bernal

http://www.chimeralabs.com/chimera_labs_ultra_high_end_audio_internal_speaker_cable.html

Zeros

Bernal, why are you spamming threads? You said "very interesting" in like 5 threads and posted a link to some speaker wires here.

zingo

Bernal wrote: »

I'm just going to go ahead and report that. He can work it out himself with the mods.

Bernal

Zeros wrote: »

Bernal, why are you spamming threads? You said "very interesting" in like 5 threads and posted a link to some speaker wires here.

A forum is very sensitive!:(
Ok. I said "very interesting" because they thought of reading.
Notice a simple mistake. I referred to installing cables, and it was a process circuits.




Donde mora la libertad, all

Systems

TNTHOMETHEATER wrote: »

I want to build a bipolar surround speaker from some current drivers i have. Two 4 ohm tweeters and two 4 ohm woofers infinity ref 2000.5 crossovers for each cabinet. I have the cubic volume all calculated but want to insure i wire them correctly inside. Can someone help?

Bipolar operation requires that the drivers be wired in phase.The fact that they are 4 ohm would mean that you would need to connect the driver pairs in series, as a parallel conection would result in a very low 2 ohm load.
A few questions are in order though, is that crossover designed for those"specific" drivers?Do you have an complete xover for each driver pair or plan to use one crossover for 2 tweets and 2 woofers.?

TNTHOMETHEATER

GV#27 wrote: »

Bipolar operation requires that the drivers be wired in phase.The fact that they are 4 ohm would mean that you would need to connect the driver pairs in series, as a parallel conection would result in a very low 2 ohm load.
A few questions are in order though, is that crossover designed for those"specific" drivers?Do you have an complete xover for each driver pair or plan to use one crossover for 2 tweets and 2 woofers.?

No the crossover was not designed for these drivers. I do plan to use one crossove for two tweets and two woofs.

Systems

TNTHOMETHEATER wrote: »

No the crossover was not designed for these drivers.

Then unfortunately your chances of it properly blending those drivers are slim to none, and slim has left town.A crossover needs to be optimized for the frequency response and impedance of the specific drivers used otherwise gross errors in frequency response will result.

dudeinaroom

If the crossover has the same crossover points as the donner for the driver and is * ohm your good, but if it is a crossover for 4 ohm driver you will have either a gap, or an over lap in the signals that are sent to the drivers. If it is a crossover that is 8 ohms and has a crossover point comparable to the original for the drivers you would just wire from the crossovers tweeter output + to the tweeter +, then from the tweeter - to the second tweeter + then from the - of that tweeter to the - on the crossover, you would do the same with the woofers. If you have the crossovers that were originally for the drivers we could help you to build a suitable crossover if needed.

Later,
dude

Systems

dudeinaroom wrote: »

If the crossover has the same crossover points as the donner for the driver and is * ohm your good, but if it is a crossover for 4 ohm driver you will have either a gap, or an over lap in the signals that are sent to the drivers. If it is a crossover that is 8 ohms and has a crossover point comparable to the original for the drivers you would just wire from the crossovers tweeter output + to the tweeter +, then from the tweeter - to the second tweeter + then from the - of that tweeter to the - on the crossover, you would do the same with the woofers. If you have the crossovers that were originally for the drivers we could help you to build a suitable crossover if needed.

Later,
dude

There is a lot more involved in the designing of crossover than nominal impedance.The bandwidth, sensitivity,impedance vs frequency and any discontinuities in the drivers frequency response amongst other details need to be factored into the design.Simply transplanting a crossover designed for one set of drivers to a different set of drivers holds little chance of ideal results even if they have similar nominal impedances.

Accurate measurements and an optimization program like this is also a big help. http://www.pvconsultants.com/audio/crossover/pcd.htm

TNTHOMETHEATER

dudeinaroom wrote: »

if the crossover has the same crossover points as the donner for the driver and is * ohm your good, but if it is a crossover for 4 ohm driver you will have either a gap, or an over lap in the signals that are sent to the drivers. If it is a crossover that is 8 ohms and has a crossover point comparable to the original for the drivers you would just wire from the crossovers tweeter output + to the tweeter +, then from the tweeter - to the second tweeter + then from the - of that tweeter to the - on the crossover, you would do the same with the woofers. If you have the crossovers that were originally for the drivers we could help you to build a suitable crossover if needed.

Later,
dude

it's an 8 ohm crossover and has the same crossover point as the origanal driver. That is the wiring that i thought was needed. Thanks for conferming appreciate you taking the time!

Gaara

Zeros wrote: »

Bernal, why are you spamming threads? You said "very interesting" in like 5 threads and posted a link to some speaker wires here.

Don't mind him much, he had a thing for links...and OPPO. Checkout the thread he started on the BDP-83, he was bumping that thing every couple of days with random links.

As for this thread...I have nothing to contribute.