• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

87-93 oem speaker impedance

  • Thread starter Thread starter Mustang5L5
  • Start date Start date Feb 27, 2011

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,236
17,921
224
Massachusetts
Feb 27, 2011
#1
  • Feb 27, 2011
  • #1
87-93 oem speaker information

Anyone have their 87-93 original speakers kicking around?

I have the dash speakers for a premium stereo car and they are 5.5 ohms each. They non-premium speakers might be different.

Need someone who has rear speakers and door speakers to measure. I have a feeling ford used 6 ohm speakers...at least in the doors.

Just trying to avoid blowing the oem 1993 amp/cd player by running 4 ohm speakers where 6 ohm speakers should be
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,813
234
Dublin GA
Feb 27, 2011
#2
  • Feb 27, 2011
  • #2
This isn't going to help you any, but...

Unfortunately the DC resistance measured with an ohmmeter and the impedance are not the same. Impedance is the opposition to flow of current in an AC circuit and takes into account frequency, capacitance, resistance, and inductance. Your ohmmeter readings will not reflect the actual impedance of the speaker.

See Resistance vs. Impedance and What is the difference between resistance and impedance? for more information.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,236
17,921
224
Massachusetts
Feb 27, 2011
#3
  • Feb 27, 2011
  • #3
That's true, but at least using resistance gives me some sort of values to compare to.

My aftermarket dash and door speakers (which are 4 ohm impedance) measure about 3.2 ohms resistance.

But at least if someone tells me their oem door and rear speakers are 6ohm of resistance...then I know I really need to look into my speakers or I run the risk of overpowering the amp and blowing it up. But of someone tells me they are around 3-4 ohms or so....then I figure I am okay.

Problem is nobody has their oem speakers anymore. Mine dry-rotted a long time ago.


Of course, in my lovely research into the way the mustang is wired, I found that the way ford wired the cars with 6 speakers was to wire the dash and door in parallel, but install a bass blocking capacitor on the dash speakers. Since most of the energy for a speaker to produce sound is expended making low/mid sounds, keeping them out of the dash speakers more or less produces a 4-speaker setup, with a tweeter..sort of.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,236
17,921
224
Massachusetts
Mar 2, 2011
#4
  • Mar 2, 2011
  • #4
Okay, got radio all set up, but now I'm curious.

I have in my possession a pair or speakers supposedly from a 1993 lx.....part number is F4ZF-18971-AA That's a 1994 engineering number though. But guy says they came from a 1993. Plug is different than what is on my 88

On eBay, I see an auction for the same speakers, auction states originals from a 1993 also. So now I'm curious.

So...of anyonenhas oem speakers....got part numbers?

premium dash speakers are p/n E6DF-18808-CC
Non- premium dash speakers are E6DF-18808-BC


No, I'm not putting stock speakers in my car...I'm just trying to put some information together due to the total lack of info on stock fox mustang stereo systems
 
You must log in or register to reply here.

Similar threads

Interior and Upholstery 87-93 Mustang Metal Side Headliner Trim Clips Upper Hatchback Coupe Door OEM 524
  • Noobz347
  • May 25, 2025
  • Fox 5.0 Mustang Tech
Replies
0
Views
405
Fox 5.0 Mustang Tech May 25, 2025
Noobz347
Run a 5 channel or use head unit and mono amp for sub?
  • 2000xp8
  • Sep 20, 2024
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Sep 23, 2024
2000xp8
T
Need advice: 93 Cobra audio upgrade with no permanent modifications
  • THNX SVT
  • Feb 18, 2024
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
7
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 20, 2024
TIGGER
C
Interior and Upholstery 93 Mustang - Door Speaker Recommendations
  • Crigano
  • Feb 2, 2023
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
4
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 2, 2023
Crigano
C
E
Electrical Factory Stereo / Amp Repair Service?
  • emba129
  • Jan 28, 2022
  • Fox 5.0 Mustang Tech
Replies
1
Views
1K
Fox 5.0 Mustang Tech Jan 30, 2022
90sickfox
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?