Hi, I've got a Ibanez SR506 with Vari-Mid III Band EQ preamp, and it gives me a low output sound so I'm thinking in change it for an Aguilar preamp or a Bartolini preamp. But, which is better? I was reading in some bassists forums and the users said that Aguilar preamps are better than Bartolini preamps. But I don't know if there is an Aguilar preamp that works well with the vari-mid functions ( I don't know how to explain). The Vari-Mid has bass boost/cut pot in the bottom and in the top a treble boost/cut pot, a middle bosst cut pot in the top and a middle frequency pot in the top, volume master and balance. Does any model of Aguilar preamp have the same caracteristics? aaah and I play Metal, like Iron Maiden and Dream Theater , because of the sound the preamps have. Thanks for answer, I'm not an English speaker, but I tried to be the most specified I can.