Biwired-Dunlavy V- Bass reduced why?


I got these new cables (one each hi and low pass) that hooked up to my Dunlavy V 's for the very first time. While mid and highs are improved few nothces, bass qty (actually quality at first impession is quite good) reduced dramatically.

Could you expalin Why? Do need Jumpers also?

thx

Nil
nilthepill
Mistery solved!!

Well, Biwiring does NOT reduce bass db but only quality. with my IV's with my old cables, I was comparing uncorrected Ratshack meter values to my previously measured single wire corrected ref. I did not realize untill test I did just 20 minutes ago from scratch: with single wire and with biwire. Both numbers are exactly the same.

Downstairs with V's it must be the new cables!!

Sorry, did not mean to mislead anyone!!! Thanks to thoes who answered to the thread.
You have outstanding speakers and an oustanding amplifier...it was a mystery indeed that this high quality equipment should be so affected by a change of cable. Well designed equipment should be robust and tolerant of such slight changes as the differense from a cable.