This is a newbie turntable question that I can't find a definitive answer for. I recently purchased a new (cheap) Audio Technica cartridge for one of my turntables. Is there a burn-in period? This cartridge is on an older Pioneer table. Once installed it had much more high end (almost sibilant) with less low end kick then my Dual TT with Ortofon cartridge and sylus. Now I understand that different tables cartridges and stylus' will effect the sound but I'm hoping the highs mellow and the bass comes up a bit. I pained over the alignment vta vtf anti scate etc. I know it's setup properly. Anyone?