The Advance Paris X-P700 Stereo Preamplifier offers technical refinements rarely encountered in this range: dual mono design and the most direct signal processing possible (Direct Path). It has supreme refinement and it is possible to choose between two output schemes: the class A ...The Advance Paris X-P700 Stereo Preamplifier offers technical refinements rarely encountered in this range: dual mono design and the most direct signal processing possible (Direct Path). It has supreme refinement and it is possible to choose between two output schemes: the class A mode using bipolars in double cascade assembly, close to a tube gradient, and the discrete mode, based on a JFet differential and current mirror in the bipolar, polarized in class AB, more traditional.