I play bass just for fun. Recently, I have been considering an external preamps such as a Sadowsky SBP2 or an Aguilar AG for my passive Fender Jazz. The reviews say it give 'better' tone. But my bass combo has a 5 band EQ section. Assuming, i am not looking for a second sound whilst playing (soloing or overdrive), would I really need a pedal EQ to shape the tone? Any clear benefits of using a pedal preamp? Thanks!