Matching subwoofer output to mid-range speakers
The DPX1800 and DPX11500 feature a polarity control switch for reversing the
polarity of the output signal. This can be useful when matching the acoustic output of
your subwoofers to the output of your mid-range speakers.
Connecting
directly_t_o_a_h_e_a_d_u_n_it
_
The amps provide connections directly to a head unit without a pre-amp output, such
as a factory-installed head unit.
WARNING
When using the speaker(high-level) inputs, the black wire
mustbe grounded
at
the radio. Failure to do so will result
in
noise and/orimproper operation.
Care and maintenance
Cleaning the case
Use a soft, dry cloth to gently wipe dust and dirt from the unit.
Do not use benzene, thinner, car cleaner, or other cleaners. These substances may
damage the unit or cause the paint to peel.
Servicing the unit
In
the event that trouble arises, never open the case or disassemble the unit. The
internal parts are not serviceable by the user. Opening any components will void the
warranty.
Changes
or
modifications
to
this product not approved
by
the
manufacturer will void the warranty
and
will violate FCC ap-
proval.
APXlDPX Amplifiers
9
Matching subwoofer output to mid-range speakers
The DPX1800 and DPX11500 feature a polarity control switch for reversing the
polarity of the output signal. This can be useful when matching the acoustic output of
your subwoofers to the output of your mid-range speakers.
Connecting
directly_t_o_a_h_e_a_d_u_n_it
_
The amps provide connections directly to a head unit without a pre-amp output, such
as a factory-installed head unit.
WARNING
When using the speaker(high-level) inputs, the black wire
mustbe grounded
at
the radio. Failure to do so will result
in
noise and/orimproper operation.
Care and maintenance
Cleaning the case
Use a soft, dry cloth to gently wipe dust and dirt from the unit.
Do not use benzene, thinner, car cleaner, or other cleaners. These substances may
damage the unit or cause the paint to peel.
Servicing the unit
In
the event that trouble arises, never open the case or disassemble the unit. The
internal parts are not serviceable by the user. Opening any components will void the
warranty.
Changes
or
modifications
to
this product not approved
by
the
manufacturer will void the warranty
and
will violate FCC ap-
proval.
APXlDPX Amplifiers
9
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