Owner's Manual
Page 15 | e110 & e112
Crossover Switch
e “crossover” selector switch determines the operating mode of the E-Sub’s
built-in active crossover.
“O” defeats the crossover lter, completely removing this circuit from the
signal path and is most useful when using a receiver or preamp/processor’s lters
and bass-management features.
“On” activates the on-board active crossover. is crossover consists of a 24
dB/octave low-pass lter for signals feeding the E-Sub’s internal amplier, plus
a 24 dB/octave high-pass lter feeding the “Line-Outputs” on the E-Sub’s rear
connection panel. is is most useful when integrating the E-Sub into a two-
channel audio system.
Crossover Frequency Knob
e “crossover freq. (Hz)” selector knob allows the user to choose the
crossover frequency of the E-Sub’s built-in, active crossover. It has no eect when
the “crossover” switch is in the “o” position. e frequency is variable from 25
Hz (full counter-clockwise) to 130 Hz (full clockwise). 80 Hz is a commonly used
lter frequency and usually serves as a good starting point for adjustments.
Polarity Switch
e “Polarity” switch allows the user to select between normal (0 deg) and
reversed (180 deg) signal polarity. e “Polarity” switch will primarily aect the
small frequency range around the crossover point between your subwoofer and
satellite speakers.
Unlike the “phase (deg.)” control, which eectively adds time delay, the
“Polarity” switch produces an instantaneous reversal of the signal’s amplitude
peaks. For example, if at a given reference point a sine wave has an amplitude
peak, by ipping the “phase (deg.)” switch you instantly convert that peak
into a trough or amplitude dip. Because the eect of the “Polarity” switch
is immediate, it compliments the operation of the “phase (deg.)” control and
cannot be replaced by it.
When placing your E-Sub in the room, experiment with the “Polarity “switch
before adjusting the “phase (deg.)” control. Either position of the “Polarity” switch
may provide a smoother transition between your E-Sub and the satellite speakers.
Use source material with good mid and upper bass content for evaluation.