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Do re -wired BI wired speaker cables need break in time ?

I have a pair of Cardas Clear Beyond speaker cables that were single wired and I had them sent to Cardas to be internally bi-wired. I just got them back on Friday afternoon and they sound dead and muffled and not what they sounded like before. I can't call Cardas today, but if they went from single to b-wired internally do they need to be broken in - all over again ?  Love these cable and it initially took a long time to break them in . Your thoughts and thank you in advance.  
garebear
gdnrbob
4,444 posts
 
@garebear , maybe the 7th day is for rest. ;)
B
douglas_schroeder
3,281 posts
 
3 years, 184 days, 9 hours and 12 seconds. You'll hear it. 

readargos
23 posts
 
I agree they will need some fresh breaking in.  New connectors, new sheathing to split into bi-wire, mechanical stress to the cable, etc.

I have found even used Cardas may take a couple hundred hours to sound their best.  The changes tend to be subtle rather than wholesale, including reduction in hardness or glare along with increases in clarity and refinement - in short, the same complaints most people have during the initial breaking in period for Cardas cables.  We rarely think to ask the previous owner how long the cables have sat unused.  As well, the speaker-amp interface in your system likely presents different characteristics to the cable from the previous owner's.
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