Best onboard preamps

[hobse]

Hi everyone. I have an ibanez sr 755 with bartolini mk1 pickups that I recently upgraded to mk5 pickups and the preamp sounds a bit dull I was looking for something with a bit more punch or something sounding p bass style. My ibanez is a 5 string btw

 

[TheEmptyCell]

You want P bass tone? Go passive, get non-Bartolini pickups. Or just get a p bass.

 

[HollowmanPL]

I'm also thinking about installing one into my bass. Mostly I think about Aguilar OBP3