I always thought that it is perfectly OK to bi-amp with 2 different amps so long as both amps have the same gain - otherwise the volume of the sound from each of the 2 drivers (per speaker) would vary relative to one another as the volume control for the input signal is turned up or down. However I‘ve read that one prominent user of Audiolense uses a lower gain amp for the tweeter because it has a higher sensitivity than the mid/woofer. Why does this not produce the relative volume mismatches that I’ve tried to describe above? What am I missing here?