The Bass Guru – Your Bass Needs A Pre-Amp Lee the Bass Guru explains how an onboard preamp works and how it can improve the tone of your bass. By Josh|2015-02-02T19:46:37-07:00November 11th, 2014|Uncategorized| Share This Story, Choose Your Platform! FacebookXRedditLinkedInTumblrPinterestVkEmail Related Posts Speaker Cab & Head Impedance – Why Is It Important? Speaker Cab & Head Impedance – Why Is It Important? Maintaining Your New Bass Maintaining Your New Bass