This a hundred times. A passive guitar or bass pickup is going to be dampened by the low pass filter which consists of the capacitance of the cable and the coi

This a hundred times. A passive guitar or bass pickup is going to be dampened by the low pass filter which consists of the capacitance of the cable and the coil of the pickup and the input impendance of the preamp. Linesignals, or instruments with inbuilt active circuits are not affected.