Hi Tobb... thanks for the reply... just to clarify, my question was related to my B&K components... the B&W speakers were used to swap out my speakers to verify my sound issues weren't related to the speakers... swapped the L/R RCA Interconnects on the preamp and my sound issue in fact moved from the right speaker to the left... so, it appears I have an issue with my B&K PRO10MC preamp... not sure if it's worth sending in for service or to just look for another preamp... maybe a Classe CP50 or stepping into the entry level tube preamp realm...