I purchased an SR990 4 string. It is a custom built, but the EQ is just like the 800 model. My problem is adjusting the EQ so I have a nice low tone but yet good highs. My mid or highs are to scratchy or twangy, and my E low over-rides my highs. The set up is as follows: Master Volume- 100% Pick Up Balancer- Middle (50%) P & J Pick Ups Top Teble Boost/Cut- 75% Bottom Bass Boost- 80% Top Mid Rande Boost Cut- 83% Bottom mid Range Frequency-55% Please help if you have your EQ set different so I can get a Jazz sound & Funk with out adjusting to much.