This thread acknowledges the work of Cyril Bateman http://www.waynekirkwood.com/images/...nteraction.pdf
and was prompted by discussion here: http://theartofsound.net/forum/showt...-coated-copper

Here as I understand is the schematic of what Cyril arrived at, in his article suggested to be a ideal speaker side zobel network
to match the cable he was using. Noting the network lowers just slightly the speaker impedance being a parallel, that effect is negligible
Would suggest resistors not be wire wound types due to self inductance, but wattage be 3w for each.

Will be interesting to try this to see if it assists.
C Bateman Speaker side Zobel.pdf