I haven't heard both amps directly compared in the same system, but I own the Moscode 401HR and I have listened to the Butler amps on quite a few occasions.
The Moscode has better drive and dynamics (it drives my Salk HT3's easily and with authority) with a cleaner and less colored midrange. The music flows out of the Moscode and produces a nice big image that is soooo easy to listen to. There is tons of detail, but it really is about the overall enjoyment factor with the Moscode amp.
The Butler is a good amp at a good price (especially used), but I feel it doesn't match the Moscode in any particular area or in overall presentation.
I highly recommend you at least audition the Moscode and take advantage of their 33 1/2 day trial.
George
The Moscode has better drive and dynamics (it drives my Salk HT3's easily and with authority) with a cleaner and less colored midrange. The music flows out of the Moscode and produces a nice big image that is soooo easy to listen to. There is tons of detail, but it really is about the overall enjoyment factor with the Moscode amp.
The Butler is a good amp at a good price (especially used), but I feel it doesn't match the Moscode in any particular area or in overall presentation.
I highly recommend you at least audition the Moscode and take advantage of their 33 1/2 day trial.
George