Alpine KTA-450 4-Channel Power Pack Amplifier with Dynamic Peak Power 45W RMS x 4, At 2 Or 4 Ohms - Used Good

Alpine KTA-450 4-Channel Power Pack Amplifier with PowerStack Capability

The next generation of Power Pack is here! The compact KTA-450 Power Pack Amplifier utilizes Alpine’s exclusive DPP technology for a big power boost in a small space.

The KTA-450 measures just 7” W x 3.5” H x 1.25” D. For vehicles that do not have the space for a traditional amplifier, the KTA-450’s small size allows it to be tucked away in hidden areas such as in the glove box or behind the radio. It could even be used in a motorcycle’s saddlebag or on a boat.

No Extra Wires! Thanks to the efficient power needs of the DPP technology, the KTA-450 does not require a new power supply wire at the battery, so installation is fast using the supplied radio power wires. In addition, the KTA-450 uses a 22-pin power harness with a recessed design on one side, so the cables can be tucked-in for a cleaner, less-bulky installation.

Features:
• Compact size, measuring just 7” W x 3.5” H x 1.25” D
• Class D amplifier circuit
• Dynamic Peak Power (DPP) technology doubles the power during dynamic musical passages
• Power Stacking bracket included for mounting to the iLX-W650 7” Mech-less AV Receiver (sold separately)
Specifications:
• Power output 4-Ohm @ 14.4 Volts: 50 W RMS X 4
• Power output 2-Ohm @ 14.4 Volts: 45 W RMS X 4
• Dynamic Peak Power output 4-Ohm @ 14.4 Volts: 100 W RMS X 4
• Dynamic Peak Power output 2-Ohm @ 14.4 Volts: 100 W RMS X 4
• THD 10 W into 4 Ohms: Less Than 0.2%
• THD 10 W into 2 Ohms: Less Than 0.1%
• THD Rated Power 4 Ohms: Less Than 0.1%
• THD Rated Power 2 Ohms: Less Than 0.1%
• S/N Ratio: 1 W into 4 Ohms: >85dB
• Frequency Response:+0/-3 dB 15Hz - 50kHz
• Input Sensitivity: RCA (0.152 - 2.80V), Speaker (0.33 - 6.05V)
• Crossover: Variable HPF/LPF, (OFF/60/80/120Hz)
• Weight: 1.3lb

In the box:
• KTA-450 4-Channel Amplifier
• Input/Output/Power Wire Harness
• Universal Bracket Set
• Cable Tie
• Self Tapping Screw
• W650 Mounting Brackets

Creative Audio opened in 1991 and has grown into a multi-location specialty retailer with seven stores across Missouri and Arkansas. We support enthusiasts, installers, and everyday customers with product knowledge, practical guidance, and a service-first approach that extends beyond the checkout.

We are deeply invested in performance-focused audio across categories: car audio, marine, powersports, and home audio. That means more than selling gear — it means understanding system matching, power requirements, signal integration, real-world installation considerations, and the small details that determine whether a system performs the way it should.

Our teams work daily with source units and processors, amplifiers, speakers, subwoofers, wiring and installation accessories, sound treatment, and integration solutions. We also support remote start and vehicle security categories for customers who want added convenience and protection.

Creative Audio employs Mobile Electronics Certified Professionals, and we support customers before and after the sale. If you are unsure about compatibility, installation requirements, or what is included, message us through eBay with your application details and we will help you make an informed decision.

Most orders ship within 24 hours. For additional support, you may call 800-854-5821.

Orders are packaged carefully and ship promptly to the address provided at checkout. If something arrives damaged or incomplete, contact us through eBay messages right away and we will help you resolve it.

Returns are accepted within 30 days in accordance with the return terms shown on this listing. Items must be returned in original condition. International returns are not accepted.