The Alpine KTP-445A Head Unit Power Pack is an easy-to-install power upgrade amplifier that allows you to add higher output and more dynamic response to your Alpine head unit. The KTP-445A amplifies your Alpine head unit’s power output, resulting in a 150% power increase over the original power from the head unit’s built-in amplifier.
RMS Power Output (Watts x Channels): 45 x 4
Peak Power Output (Watts x Channels): 90 x 4
Best Frequency Response: 20-20k Hz
THD at Rated RMS Power: 1%
Signal to Noise Ratio: 84 dB
Input Voltage: 14.4v