Bi-wire speakers and bi-wire cables?

If the jumpers aren't removed, it isn't bi-wiring. Nothing has changed, no matter how many cables you attach.

No harm in bi-wiring leaving jumper attached? Wish others would weigh in on this. Legacy, for one, says remove jumper if bi-wiring, not sure why.  Seems intuitively if the jumper passes electrons differently yet simultaneously, sonic muddle would result? Will ask Legacy before trying it, lest something blow up.

I will say one or the other but not both at the same time.

  Why?  They do the same thing and there's no harm in redundancy.

I will say one or the other but not both at the same time.  You could use the biwired cables connected to one pair of terminals, either high or low, with the jumpers connected.

To the OP, yes.

i myself bi-wire my Mission Cyrus speakers.... They are made to do so...

I was hearing the difference after one minute and with a perfectly well known file playing then no coming back...

But some others will vouch that bi-witing make and cannot make any difference at all....   :)

Why?

Debates about cables,bi-wiring, etc like many debates in audio are useless...

The reason is simple, all electronic design are created "generic" that is to say with universal physical measurements during a standardized process, one unity after the other; BUT each generic standard electronic component you bought must be embed in "specific" conditions, mechanical,electrical and acoustical, differing from house to house, then NO general rule replace listenings experiments and the particular triple embeddings of the designed components...

All debates are only most of the times a result of ignorance of this simple fact....

:)