I understand what the high decay and low decay settings are trying to do on the HALL setting on the space. It modifies the rate at which the low & high reverb frequencies decay. What I don't understand is if I set the decay time to say 2.0 seconds and then I turn the X knob to modify the low decay setting it goes from 0.0 to 5.0. What does this mean? If I turn to it say 3.0 does it mean it takes 3 X the overall reverb decay time of 2.0 seconds = 6 seconds to fully decay?