There’s been lots written but here are my two adds: one more factual guidance, the other my opinion based on hearing various Sonus Fabers.
1. re: power vs quality - more power is only beneficial if you are exceeding the VOLTAGE limit of the amp. The Pass labs stuff can deliver plenty of current for its modest voltage (about 14 volts rms) under normal dynamic conditions (where one uses on average ~ 10-% of rated power due to music’s peak: average ratio) . If you are beginning to clip - get more power. Else. move on IMO. Note my answer assumes that money is limited and you can only spend your budget once: so money spent on an amp, for instance, is not spent on speakers. Hint: i think you ought to look at speakers - whether i be subwoofers or a thoroughly different speaker. Yet that may not match your personal likes.
2. re: the speakers - it would be helpful to know the problem you are trying to solve. They will never have much bass - the laws of [physics are not on thier side, yet many speakers that solve that problem violate the laws of decorating. Only you know.
That said, when i have heard the Sonus Fabers they always sound somewhat bright and harsh from the upper mids up. This is, IMO, common in many components that seek "detail". It does not sound like music to me. Don;t get me wrong, they are very good speakers, but IMO nowhere near the quality of your preamp and amp (having only heard *ABOUT* the BHK, but knowing Nelson’s stuff).
Yet that may no be your objective at all. Step #1 if finding a solution is knowing the problem!
G
1. re: power vs quality - more power is only beneficial if you are exceeding the VOLTAGE limit of the amp. The Pass labs stuff can deliver plenty of current for its modest voltage (about 14 volts rms) under normal dynamic conditions (where one uses on average ~ 10-% of rated power due to music’s peak: average ratio) . If you are beginning to clip - get more power. Else. move on IMO. Note my answer assumes that money is limited and you can only spend your budget once: so money spent on an amp, for instance, is not spent on speakers. Hint: i think you ought to look at speakers - whether i be subwoofers or a thoroughly different speaker. Yet that may not match your personal likes.
2. re: the speakers - it would be helpful to know the problem you are trying to solve. They will never have much bass - the laws of [physics are not on thier side, yet many speakers that solve that problem violate the laws of decorating. Only you know.
That said, when i have heard the Sonus Fabers they always sound somewhat bright and harsh from the upper mids up. This is, IMO, common in many components that seek "detail". It does not sound like music to me. Don;t get me wrong, they are very good speakers, but IMO nowhere near the quality of your preamp and amp (having only heard *ABOUT* the BHK, but knowing Nelson’s stuff).
Yet that may no be your objective at all. Step #1 if finding a solution is knowing the problem!
G