The old P10 on the shop page is actually the original prototype, it has been in my equipment rack since I originally built it.
I must say, it would be particularly good for drum recording…. the mic amps have the necessary huge overload margin and the compressors are very ‘kind’ to drums; they are of course, the same as the optical compressors in the P38.
The advantage of the P38V7 is the stereo width control that the P10 does not have, but the P10 does have very good EQ sections as well, and can be used as a true dual channel unit. 