How I Corrected My Impedance Mismatch - Ford Mustang Forum
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post #1 of 3 (permalink) Old 07-16-2011 Thread Starter
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mr.naldo's Avatar
Joined: Dec 2009
Location: San Jose
Posts: 82
How I Corrected My Impedance Mismatch

Last year at this time I installed new speakers in my mustang, detailed here:

Unfortunately I experienced moderate to severe distortion starting at 50% volume due to an impedance mismatch. I had some time off again this year, and fabricated a custom wiring harness adapter to correct the impedance mismatch.

How I did it is detailed in attached.

Attached Files
File Type: pdf CorrectingImpedanceMismatch.pdf (664.0 KB, 1366 views)

'91 LX 5.0 Vert - FRPP T5-Z with King Cobra Clutch Kit; Pro 5.0 Shifter; FRPP Aluminum Driveshaft; FRPP 3.73:1 Gears in new FRPP 8.8" Traction-Lok Diff; FRPP Front Control Arms; FRPP Rear Upper Control Arms; FRPP "B" Springs; Tokico Blue shocks and struts; J&M Tubular Rear Lower control arms; MM Full Length Subframe Connectors; MM 4 Point K-Frame Brace; SSBC 4 wheel Disc Brakes

'69 Mercury Monterey Vert - 390-2V, C6, bone stock
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post #2 of 3 (permalink) Old 02-23-2012
1993lxvert's Avatar
Joined: Jun 2011
Location: Navarre
Posts: 11
I am looking to replace my factory speakers and read your install guide, and now I just read this report you did on correcting impedance. I am not as technically inclined as you are at this type of thing, would it just be easier for me to just install 6 ohm speakers and not have to correct for impedence or are 6 ohm speakers generally of lesser quality?

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post #3 of 3 (permalink) Old 03-29-2012
gostlrs's Avatar
Joined: Mar 2012
Location: Buckeye/Phoenix
Posts: 8
If you just buy a 4 Channel Amp that is 2Ohm Stable then you can run the fronts on one channel at 2 ohms & the rear on the other at 4 ohms....
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