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5) Phase Setting
If you are using the XJ-300ST to power a subwoofer, use this knob to correct
the arrival time of the subwoofer's frequencies to that of your speakers. Note
that this feature only works when the amplifier is set to "LOWPASS".
To do this with the highest accuracy, you will need an SPL meter - available
at most electronics stores. To set the phase:
a) Send a 50Hz continuous tone signal through the speakers and the
subwoofer at the same time.
b) Turn the phase knob to 0° and place the meter in the listening position.
c) While the system is playing the 50Hz tone, read the meter.
d) Rotate the phase knob until the meter reads the highest possible.
e) Take note of the position for future reference.
6) Crossover Setting
Sets the 3dB down maximum frequency range. This feature only works
when the amplifier is set to "LOWPASS".
As a rule of thumb:
a) If you are powering the THOR In-Wall SUB10, the Q10B tactile
transducer, or a large subwoofer (12-inch - 18-inch), set the crossover to
50Hz - 100Hz.
b) If you are powering an MQB1 tactile transducer, a 10-inch subwoofer, or a
small front speakers, set the crossover to 70Hz or the 9 o'clock position.
c) If you are powering a small subwoofer (8-inch or smaller) or small
speakers, set the crossover to 100Hz or the 12 - 2 o'clock position.
7) Volume Setting
Always start at MIN position and slowly increase the volume to reach the
desired sound level. Set based on the input level and power rating of your
load.
Specifications are subject to change without notice
XJ-300ST Manual
7
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