Alpine KTP-445U Power Pack Compact 4-channel car amplifier — 45 watts RMS X 4
More power, less hassle
Want a simple way to crank up the power of your receiver? Alpine's "Power Pack" amplifier increases your receiver's power output to 45 watts RMS by 4 channels. That's a big jump up from the 7-20 watts per channel typically put out by a car radio, and plenty of power to drive high-performance speakers or keep up with a big subwoofer amplifier. Best of all, this compact amplifier is so efficient you can often run it off the same circuit that powers your receiver. A universal plug lets you feed a signal via RCA outputs or speaker-level wiring.
You can install this compact amp behind most dashboards, but you'll need 4-channel patch cables to connect your car stereo to the amp's preamp inputs. You can also splice into your speaker wiring to get signal to the KTP-445U.
Installation Note: We recommend running a dedicated constant power wire to the battery for optimal performance from this Alpine amp — we offer an inexpensive wiring kit for this installation. This high-powered amp won't work in systems where an outboard factory amplifier is still active.
- compact 4-channel car amplifier
- 45 watts RMS x 4 at 4 or 2 ohms
- 90 watts RMS x 2 bridged at 4 ohms
- CEA-2006 compliant
- Class D amp technology
- selectable high-pass filters (60, 80, or 120 Hz at 12 dB/octave)
- switchable 2- or 4-channel input
- switchable RCA or speaker-level inputs
- fuse: 15A
- dimensions: 7-7/8"W x 1-1/2"H x 2-9/16"D
- warranty: 1 year
MFR # KTP-445U