Alpine KTP-445U

• For aftermarket and factory installed systems
• Compact size
• 4-channel Amplifier
• 45 Watts x 4 @ 4Ω/2Ω
• 90 Watts x 2 @ 4Ω Bridged
• Fuse: 15A

Power Output

• Per Channel, Ref: 14.4V, 4ohms, @ < 1% THD+N: 45W RMS x 4
• Per Channel, Ref: 14.4V, 2ohms, @ < 1% THD+N: 45W RMS x 4

S/N Ratio

• IHF A-wtd + AES-17, Ref: 1 W into 4 ohms: 82dB
• IHF A-wtd + AES-17, Ref: Rated Power into 4 ohms: 98dB

Frequency Response

• +0 / -3 dB, Ref: 1 W into 4 ohms 15Hz – 45kHz

Input Impedance

• > 10k ohms

Input Sensitivity

• Ref: Rated Power into 4 ohms, RCA Inputs: 0,2 – 4,0 V
• Ref: Rated Power into 4 ohms, Speaker Level Inputs: 0,5 – 10,0 V

Crossover

• Ch 1 / 2: Selectable HPF (-12 dB/oct.), defeatable: Off/60/80/120Hz
• Ch 3 / 4: Selectable HPF (-12 dB/oct.), defeatable: Off/60/80/120Hz

Dimensions

• Width: 189.0mm (7-7/16”)
• Height: 38.2mm (1-1/2”)
• Depth: 64.5mm (2-1/2”)
• Weight: 0.8kg (1,5lbs)