The original single-coil 'soapbar' design had a special sound; low notes were solid and not tubby - they had an almost piano tone quality - while high notes were fat all the way up the neck. DiMarzio has always thought this was a devastating combination, and they naturally wanted to reproduce this sound without 60-cycle hum. In the end, DiMarzio found the best approach was to use the patented Virtual VintageÂ® technology to create the Virtual P90. The two coils are tuned to different frequency ranges and output voltages, so tone and balance can be tuned by adjusting pole piece heights. It's almost the same effect as adjustable high-fidelity speaker crossovers. Recommended For: Neck and bridge positions. Tech Talk: An obvious question is how the Virtual P-90 differs from the DLX-90. The Virtual P-90 is a little more raw-sounding: high notes have a little more snap, and low notes more growl. If you have a fairly warm-sounding guitar and amp setup, the Virtual P-90 would be a good choice for neck and bridge positions. If your guitar is more on the bright side, try the Virtual P-90 in the neck and the DLX-90 in the bridge.