Kenwood XR-4S review

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The eXcelon Reference Fit amplifiers will satisfy the discerning mobile
audiophile with its simple design and unyielding power. These amplifiers
are built to be easily installed in the tightest applications yet they
provide the power required to pump out the sound you want to hear. 120
Watts (RMS) x 4 @ 4ohms 150 Watts (RMS) x 4 @ 2 Ohms 300 Watts (RMS) x 2 @
4 Ohms (Bridged) Dual Power Supply Bi-Amp Connection Variable High Pass
Filter (High-Range): 2.5~10 kHz -12dB/oct Variable High Pass Filter
(Low-Range): 50~200Hz -12dB/oct Variable Low Pass Filter (High-Range):
2.5~10 kHz -12dB/oct Variable Low Pass Filter (Low-Range): 50~200Hz
-12dB/oct Width: 9-1/4” (235mm) Height: 2-1/16” (52mm) Depth: 7-9/16”
(192mm) For subwoofer applications, Class D amps are beautifully efficient
and their small size offers installation flexibility. Complete 2-way Multi
connection is possible. This helps to realize perfect sound tuning that can
not be achieve using a passive network.


120 Watts (RMS) x 4 @ 4ohms


150 Watts (RMS) x 4 @ 2 Ohms


300 Watts (RMS) x 2 @ 4 Ohms (Bridged)


Dual Power Supply


Bi-Amp Connection


Variable High Pass Filter (High-Range): 2.5~10 kHz -12dB/oct


Variable High Pass Filter (Low-Range): 50~200Hz -12dB/oct


Variable Low Pass Filter (High-Range): 2.5~10 kHz -12dB/oct


Variable Low Pass Filter (Low-Range): 50~200Hz -12dB/oct


Width: 9-1/4” (235mm)


Height: 2-1/16” (52mm)


Depth: 7-9/16” (192mm)


For subwoofer applications, Class D amps are beautifully efficient and
their small size offers installation flexibility.


Complete 2-way Multi connection is possible. This helps to realize perfect
sound tuning that can not be achieve using a passive network.