Hi there. I've been playing on an Ibanez SR900 which I love in shape, design and feel, but I'm not convinced with it's sound, it's too trebly and I'm looking for a deep voice tone, with good mids and definition, tone that I actually found on an ESP LTD F-255, with EMG 40HZ/B64 eq, GHS strings, agathis body and a 5 piece maple/walnut thru body neck with rosewood fingerboard. My SR900 bass is now equiped with Rotosound SB66 nickel strings, Bartolini MK1 pickups and EQ, flamed maple body with 5 piece maple/bubinga thru body neck and rosewood fingerboard. My question is, which pickups should I install on it to get that deep voice, good mids and treble sound I'm looking for?? I'm considering EMG's but what about Bartolini's MK4 USA made ones? Any advice? Don't worry for the fitting issue, I'll find a technician to take care of that. Thanks in advance. I leave you a link to You Tube with a few example of the sound I'm after.