I would agree with Alan and the rest regarding the effects of resistor on high frequency response... Over the weekend I removed my 2.7 ohm resistor and replaced it with 1.2 ohm and yes some of the attenuated high frequency signal is back and my ear has not complainted. My conclusion to this entire episode can be addressed with speaker placement and installation of low resistor value pending room layout... By the way, the cost for two resistors and connectors was less than $5 from local electronic surplus store.
