It will work on highs as well...especially on the front stage or speakers. Here are the specs on the amp.
Amplifier Topology: Class AB with patented Absolute
Symmetry™ dual N-Channel MOSFET output design
Power Supply: Independent, pulse width modulationregulated switching power supply with multistage
impedance optimizing circuitry.
Rated Power (Stereo):
150W RMS x 2 @ 1.5-4Ω (11V - 14.5V)
Rated Power (Bridged):
300W RMS x 1 @ 3-8Ω (11V - 14.5V)
THD at Rated Power: <0.03% @ 4Ω per channel
(20 Hz-20 kHz)
Signal to Noise Ratio: >108.5 dB referred to rated power
(A-weighted, 20 Hz-20 kHz noise bandwidth)
Frequency Response: 5 Hz - 30 kHz (+0, -1dB)
Damping Factor: >200 @ 4Ω per ch. / 50 Hz, >100 @ 2Ω