6
Chapter 2: Fine Tuning
In this chapter we will adjust the settings of the amplifier so that it is fine-tuned to the
user’s
preference
and
environment.
Crossover Panel
The crossover panel can be found in the back of the amplifier, between the inputs and the
switches. To access the panel, remove the two screws (at the top and bottom) that hold the panel on.
Once the panel is open, you will have access to the crossover modules, and the EQ/subsonic filter dip
switches. When using the amplifier with the TN-X1 in extended
bass mode, TN1220HO, or 12VA, both of the dip switches should
have the 1 switch set to on and the rest of the switches set to off
(see diagram at right). This is the default setting for the amplifier so
there is no need to change any of the switches. If the amplifier is
used with the TN-X1 in maximum output mode or the
TN1225HO, both dip switches need to have 2 set to on and the
rest of the switches set to off (see diagram at left). WARNING:
Do not set the amplifier for 17.5 Hz mode when using with the
TN-X1 in max output mode or a TN1225HO as this may damage
the subwoofer and void your warranty.
The Hsu Research 500-Watt amplifier comes
standard with a 51Hz crossover. There are three crossover
modules, for low pass, left high pass, and right high pass. The
module labeled Select 1 is the crossover for the left channel high
pass, Select 2 is the right channel high pass, and Select 3 is the low pass crossover.
These plug-in modules set the crossover frequency. We have optional modules for other crossover
frequencies. See Appendix A for available frequencies. To purchase extra crossover modules, please
contact Hsu Research or visit our website at www.hsuresearch.com.
Phase Switch
Depending on the absolute phase of your main speakers and amplifier, and the relative distance of
the subwoofer and the main speakers from the listening position, the bass in the crossover region may be
smoother if you reverse the phase of the subwoofer relative to the main speakers. Try flipping the phase
switch to determine which way sounds more bass-heavy. The more bass-heavy position is the setting
where the output of the subwoofer and the main speakers are most in phase. Play program materials with
bass in the crossover region such as music containing bass drums, double basses, bass guitar, etc. to
determine the correct setting.
Crossover Switch
If your receiver or processor already has a built in crossover or utilizes base management, you can
disable the crossover on the subwoofer by flipping the over switch to the out position. Otherwise,
leave the switch in the in position so that the crossover is active.
Chapter
2
Settings for
TN-X1 in
max output
mode or the
TN1225HO
Settings for
TN-X1 in
extended
bass mode
or the
TN1220HO
Summary of Contents for 500A
Page 1: ...HSURESEARCH InstructionManual 500 Watt Amplifier ...
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