Skip to main content
Contributor I
November 16, 2020
Answered

Output impedance of Port?

My apologies if this has already been answered (couldn’t see anything when searching though). What is the output impedance of the Port’s line output? I’d like to drive a fairly long cable (5m), so low impedance would be good..! 

This topic has been closed for further comments. You can use the search bar to find a similar topic, or create a new one by clicking Create Topic at the top of the page.
ratty
rattyAnswer
November 16, 2020

It’s not declared anywhere in the spec, and I very much doubt you’d get the information from Sonos Support. The output impedance is likely to be small, especially in comparison to the input impedance of the downstream device. 

A cable of 5m is not that long anyhow, but make sure it has a decent cross-sectional area and is adequately screened. I’d be more concerned about noise than any tiny voltage loss.

2 replies

ratty
rattyAnswer
November 16, 2020

It’s not declared anywhere in the spec, and I very much doubt you’d get the information from Sonos Support. The output impedance is likely to be small, especially in comparison to the input impedance of the downstream device. 

A cable of 5m is not that long anyhow, but make sure it has a decent cross-sectional area and is adequately screened. I’d be more concerned about noise than any tiny voltage loss.

blib_blibAuthor
Contributor I
November 16, 2020

Ok thanks ratty 👍