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Daily system impedance rise


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Hello SMD community,

I am building a groundpounder system in my 2006 Hyundai Tiburon GT.

It will consist of an Incriminator Audio Warden 15" 1.4 ohm DVC (wired in parallel to the amp to see a theoretical 0.7 ohm load) and a DD M4a amplifier if I can find one for the right price or a Stetsom 7k, if not possibly a Sundown Audio 4500D. I just wanna run a clean 3500 watts to her. My electrical is a Mechman 220 amp alternator, XS power D2400 up front, two XS power D3100's in the back, with 3/0 gauge wire going from the front battery to the back battery, and 1/0 gauge wire for the rest.

I understand impedance rise is a big factor in SPL comps, but must I be worried about this for a daily groundpounder system?? I just wanna build a solid system that sees a continuous 3500 WRMS, without power robbing impedance rise. I feel stuck and am not sure of my next step.

Just for reference my box will be 4 cubic feet tuned to 34 hertz.

Any information is appreciated fellas! Thanks

Braxton

2011 Ford Ranger Sport 4.0 v6

2 sundown audio prototype nsv4 15s

crossfire 4k wired to 0.4 ohm

15 banks of maxwell 3.0 caps @ 18v

triple alts (x2 us alt 250's, x1 singer 320)

153 at 23hz

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Can you please provide me with a more precise and detailed answer than just, "No"??

2011 Ford Ranger Sport 4.0 v6

2 sundown audio prototype nsv4 15s

crossfire 4k wired to 0.4 ohm

15 banks of maxwell 3.0 caps @ 18v

triple alts (x2 us alt 250's, x1 singer 320)

153 at 23hz

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no

http://www.stevemeadedesigns.com/board/topic/79921-rogers-700-dream-car-update-page-17-a-wall/?p=2335774

93 Saturn SC2My system4 SA-15's Walled

2 Cerwin-Vega S2000's

3 Kinetik Hc2000's

Dual 200amp alts.

you guys done with the peepee touching contest or do I need to end it?

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Can you please provide me with a more precise and detailed answer than just, "No"??

Your impedance changes with every frequency you play through your subs. You can either play a single note and get the most out of your amp, get a constant power amp that puts out constant power across a small range of ohms, or not worry about it.

If you already have your amp, don't worry about it.

 

F150:

Stock :(

 

2019 Harley Road Glide:

Amp: TM400Xad - 4 channel 400 watt

Processor: DSR1

Fairing (Front) 6.5s -MMats PA601cx

Lid (Rear) 6x9s -  TMS69

 

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with comp vehicles its all about getting maximum power at a certain frequency... with us being ground pounders, we play all different frequencies. impedance will change with frequency, therefore it doesnt matter what your rise is since you measure rise on a burp at a certain frequency...

the only way to combat impedance rise in a daily system is MOARR POWEERR

EDIT: damn shkibbybop... ninja'd the shit out of me

Edited by Rogers

http://www.stevemeadedesigns.com/board/topic/79921-rogers-700-dream-car-update-page-17-a-wall/?p=2335774

93 Saturn SC2My system4 SA-15's Walled

2 Cerwin-Vega S2000's

3 Kinetik Hc2000's

Dual 200amp alts.

you guys done with the peepee touching contest or do I need to end it?

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you won't notice it anyway. Since impedance rises pretty sharply at resonance (both port resonance and sub resonance) but SPL also increases at both resonant frequencies it should not matter at all to you.

Principal

JTech Consulting - Leader in 12-Volt Training and Product PlanningIt's not about how much power you have, but how well you use it

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