You are correct, Todd - stacking is not recommended. It is a good idea to keep at least a foot or so of distance between the ALD-1 and another power transformer (like an amplifier). This will minimize the possibility of radiated noise pickup in the phono section. Beyond that, it is always a good idea to keep equipment on separate shelves, preferably with some sort of damping and isolation.
Best regards,
Steve McCormack
SMc Audio
Best regards,
Steve McCormack
SMc Audio