The buffer in the tape loop essentially isolates the tape player circuitry from the preamp so there is no interaction. It would probably work but it is not a pass through. You would go through the active buffer circuit.
Audible Illusions addressed this in their newer L-2 unit. It aslo has remote and you can add a phono stage. You don't see this particular unit used much at all. It has a lot of refinements in it over the M3a and older L-1. However, it is around $2500 new plus the phono stage. It would be a wonderful choice if you could find a used one.
Audible Illusions addressed this in their newer L-2 unit. It aslo has remote and you can add a phono stage. You don't see this particular unit used much at all. It has a lot of refinements in it over the M3a and older L-1. However, it is around $2500 new plus the phono stage. It would be a wonderful choice if you could find a used one.