Alpine KTP-445 4-channel Power Pack Amplifier
# plug-and-play compact digital amplifier for Alpine in-dash receivers
# 4-channel amplifier
# 45 watts RMS x 4 at 4 ohms (CEA-2006 compliant)
# selectable high-pass filter (off/80/120 Hz, -12 dB/octave)
# selectable gain switch (high/low)
# fuse: 15A
# 6"W x 2"H x 1-1/8"D