I have a Takamine acoustic guitar. It has an on-board preamp that is not very high quality. I purchased the Para DI from LR Baggs and that was well worth the money for getting my guitar to warmer sounds. I have since purchased the LB6, referred to me by my professional guitar friends. Before installation, should I wire it to my current on board preamp, or should I bypass the preamp? Whats gonna give me the warm acoustic sound I'm looking for, without buying a better more expensive guitar???? Any suggestions? Thanks!