While I don't have a 902, I do use a Grace 901 as my DAC and pre-amp. (as I'm sure you know, the 901 was the pre-curser to the m902. based on everything I've read, the analog section is very, very similar, if not identical, while the m902 has a better DAC). So, that said, while I enjoy the DAC and usually run digi into the 901, I think the analog circuitry is where the Grace really shines. just a very smooth and detailed sound.
I haven't heard what you may replace, so I cannot offer a direct comparison. If you already have the grace, it'd be pretty easy to set it up and do a comparison for yourself. but I'd definitely encourage using the 902 as a pre-amp.
I haven't heard what you may replace, so I cannot offer a direct comparison. If you already have the grace, it'd be pretty easy to set it up and do a comparison for yourself. but I'd definitely encourage using the 902 as a pre-amp.