C3 speaker impedance
Thread Starter
Instructor
Joined: Oct 2010
Posts: 113
Likes: 5
From: Dwingeloo Netherlands
C3 speaker impedance
Would some one know what the speaker impedance is for an original Delco cassette radio in an '81 C3?
The dash speakers have been disintegrated totally, there is no cone left, due to the heat in CA where my car is from.
Modern day speakers are typically 4 Ohms, and I can get the size, but who would know what the impedance ought to be?
The original markings on the back are not helpful:
16006240
466.10V
7'8.1.9
Thank you
Cor
Edit: I have the rear speakers removed in the meantime, and they are marked 10 Ohms.
What are the consequences for the radio, if 4 off - 4Ohm speakers are installed?
10 Ohm speaker just don't exist anymore?
The dash speakers have been disintegrated totally, there is no cone left, due to the heat in CA where my car is from.
Modern day speakers are typically 4 Ohms, and I can get the size, but who would know what the impedance ought to be?
The original markings on the back are not helpful:
16006240
466.10V
7'8.1.9
Thank you
Cor
Edit: I have the rear speakers removed in the meantime, and they are marked 10 Ohms.
What are the consequences for the radio, if 4 off - 4Ohm speakers are installed?
10 Ohm speaker just don't exist anymore?
Last edited by VetteV8; Jul 22, 2011 at 12:57 PM. Reason: Add'l info
Tech Contributor
Joined: May 2003
Posts: 7,035
Likes: 134
From: North Augusta, SC
Use a meter across the wire connections to measure one of the speakers. Set it on resistance and it should read out in ohms. The DC resistance value isn't exactly the same as AC impedance, but it's close enough (within 1 ohm on speakers).
