Ontjesr, how would you characterize the sonic differences between the phono stages of the C2300 and C500t? How much of the difference do you think is a result of running the amp/preamp link truly balanced? In other words, can you compare single-ended to single-ended? I'm also curious about making this upgrade into my MC501. Presently, I prefer the RCAs from the C2300 but, as you say, it's not fully balanced so any advantage is compromised. Thanks.