Impedance rise, not your typical question

[Triticum Agricolam]

Let us know what you find out.

What frequency is your box tuned to?

[rocking.that.eclipse]

I'm in for knowledge here.

My gut tells me that the more efficiant way to run subs is to run the runs from the amp in parallel to coil in series coils

I would assume whatever way you wire, the one with the higher resistance for an individual sub would have a lower rise just because you are looking at a cooler coil inherently

changed: for me trying to juggle work and this... couldn't put together a complete thougtht

[ShadeTreeMechanic]

Although impedance does rise due to power compression, I believe the biggest factors to be the tuning of the box port and cabin resonant frequency. It seems that one way to reduce the amount of rise is to wire down to a low resistance?

[MrSkippyJ]

maybe this will help? or maybe it won't help at all! lol

[all4spl]

So testing has been done, Series coils Parallel subs @ 51Hz was 2.8ohm I mistyped when I started this topic (went over my notes again). I then rewired yesterday and retested Parallel coils and Series subs @51Hz was 3.6ohm. So there is a real measurable difference in my case. And it looks like I will be changing my subs back for INAC but I am not giving up on these beasts I will find the trick to making them work for me.

[DTS909]

[ShadeTreeMechanic]

Now I'm going to re wire my subs. Lol

[bassl0va]

I'm in for knowledge here.

My gut tells me that the more efficiant way to run subs is to run the runs from the amp in parallel to coil in series coils

I would assume whatever way you wire, the one with the higher resistance for an individual sub would have a lower rise just because you are looking at a cooler coil inherently

changed: for me trying to juggle work and this... couldn't put together a complete thougtht

If the amp is putting out the same power to the same amount of subs the coils will be the same temperature no matter how you wire it. They'll be dissipating the same power either way.

[MrSkippyJ]

I'm in for knowledge here.

My gut tells me that the more efficiant way to run subs is to run the runs from the amp in parallel to coil in series coils

I would assume whatever way you wire, the one with the higher resistance for an individual sub would have a lower rise just because you are looking at a cooler coil inherently

changed: for me trying to juggle work and this... couldn't put together a complete thougtht

If the amp is putting out the same power to the same amount of subs the coils will be the same temperature no matter how you wire it. They'll be dissipating the same power either way.

did you see the video above?

[bassl0va]

I'm in for knowledge here.

My gut tells me that the more efficiant way to run subs is to run the runs from the amp in parallel to coil in series coils

I would assume whatever way you wire, the one with the higher resistance for an individual sub would have a lower rise just because you are looking at a cooler coil inherently

changed: for me trying to juggle work and this... couldn't put together a complete thougtht

If the amp is putting out the same power to the same amount of subs the coils will be the same temperature no matter how you wire it. They'll be dissipating the same power either way.

did you see the video above?

Comparing a 0.5ohm coil and a 2 ohm coil? Heat is calculated from I²R so provided the arrangement of coils is pulling the same current and has the same resistance, it should dissipate the same amount of heat.

Edit: I'm looking at it as a whole system. That power has to go somewhere. Each coil may dissipate less heat if wired in parallel but it is right next to another coil dissipating just as much.

Think about it as 2 dual 1ohm subs. You have a final 1ohm load whether you do series-parallel or parallel-series. And in both situations, with 2500w like in the video, you have 50A being split across 2 paths, and flowing through 2 coils on each path. All you are changing is whether the link in between is. The only difference is that with the series-parallel you don't have the link between the middle.

You could add this to the series-parallel by wiring between series coils on the subs together. Or you could take it out by leaving out 2 connections from the parallel-series layout.