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Speakers: 4 ohm or 8 ohm?

Are Volvo speakers 4 ohm or 8 ohm? MVS Volvo Forum member PDLarson writes “I know some people are tired of speaker threads and I ended up posting a question in another thread but I didn’t want to hijack it even though my Q was somewhat related. My twist is that I have 4 ohm OEM Volvo speakers but I keep reading that Volvo uses 8 ohm speakers.”

I am working on door panels, noticed that one of the stock speakers was bad, went to the JY to get the only locally available replacement and it was worse than my bad speaker. My door panels were supposed to be done and I wanted to get something (yes rushing things, 1st mistake) so I went to the local stereo shop (2nd mistake?), talked to a guy who has been there forever and who I do actually trust. We did not discuss the intricacies of Volvo systems, just identified + and – on my OEM speaker. Anyway, found a nice pair of Alpine 6.5 inch component speakers SPS-610C, disassembled my OEM speakers / mounting standoffs and installed the new speakers. The fit is fine but now I’m not so sure that the sound is right.


It depends no how many speakers are connected

The head unit (radio/stereo) is built to connect to 4-ohm channels, as are all standard automotive systems.

So, you could connect a single 4-ohm speaker in to each channel and be fine. Or, you could combine TWO 8 ohm speakers in parallel (creating 4 ohm impedance) and be fine. Or you could connect FOUR 16 ohm speakers in parallel (creating 4 ohm impedance) and be fine.

So, you see, it depends no how many speakers are connected.

If you only have a single speaker (such as a door) then it would typically be a 4 ohm speaker.

If you two speakers (such as door and dash) then they would likely be 8 ohm speakers.


My Volvo Speaker says 4 ohm, why does everyone say 8 ohm?

Volvo 850, S70, V70, XC70 speakers
Volvo 850, S70, V70, XC70 speakers… are they 4 or 8 ohm?

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1 Comment

The Alpines are going to sound miles ahead of the stock drivers. While Volvo does use 8 ohm speakers, the 4 ohm Alpines will work fine. All it’s going to do is make the amplifier work a little harder. 4 ohms is fine, but if you were to hook up 2 in series, that would be 2 ohms and I wouldn’t trust the amp to take that load for very long.
Good luck.

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