


Alpine KTP-445A
4-Channel Power Pack Amplifier
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Boost Your Car Audio with the Alpine KTP-445A Power Pack Amplifier – Compact and Powerful
Enhance your driving experience with the Alpine KTP-445A Power Pack Amplifier. Delivering superior audio performance in a compact form, this powerful amplifier boosts your car audio system, providing crystal-clear sound and impressive power for every journey.
| Key Information | Details |
|---|---|
| Power Output | 45W x 4 RMS at 2Ω/4Ω |
| Dynamic Peak Power | 180W |
| Frequency Response | 20Hz-20kHz |
| Signal-to-Noise Ratio | ≥82dB |
| Dimensions | 7-7/8" x 1-1/2" x 2-9/16" |
| Thermal Protection | Yes |
| Overload Protection | Yes |
| What's in the Box | Alpine KTP-445A Power Pack Amplifier, Wiring Harness, Mounting Hardware, User Manual |
Key Features:
- Dynamic Peak Power: Delivers 45 watts RMS per channel for dynamic and powerful sound.
- High-Resolution Audio: Provides superior sound quality with advanced audio processing for optimal performance.
- Compact Design: Small footprint allows for easy installation without compromising performance.
- Plug-and-Play: Hassle-free installation with no additional wiring or fuses required.
Compact and Versatile Design:
- Compact Size: Easily fits in various installation locations within your vehicle for a clean setup.
- Versatile Mounting Options: Ideal for installation under seats, behind panels, or in other tight spaces.
- Plug-and-Play Installation: Simple and straightforward installation with included wiring harness.
Seamless Integration with Alpine Head Units:
- Perfect Match for Alpine Head Units: Designed to integrate seamlessly with Alpine's range of head units for an optimal audio setup.
- Easy Connectivity: Simplified connection with the included harness for easy setup.
- Improved Audio Performance: Boosts overall sound quality and volume, delivering a richer listening experience.
Enhanced Durability and Protection:
- Thermal Management: Built-in thermal protection to prevent overheating and ensure consistent performance.
- Rugged Construction: Durable materials and design ensure long-lasting performance, even under demanding conditions.
- Overload Protection: Safeguards against power surges and overloads for peace of mind while driving.
Why Choose Alpine KTP-445A:
The Alpine KTP-445A Power Pack Amplifier is your solution for superior audio performance in a compact and versatile design. Known for its reliability and high performance, Alpine offers a product that enhances your driving enjoyment on every trip.
Benefits of Alpine KTP-445A:
- Superior Sound Quality: Crystal-clear audio with powerful amplification for a more dynamic sound experience.
- Compact Design: Fits easily into tight spaces, offering flexible installation options.
- Seamless Integration: Works flawlessly with Alpine head units for enhanced performance and user experience.
- Durable and Reliable: Designed with advanced protection features to ensure long-lasting, reliable performance.
Frequently Asked Questions
-
What makes the Alpine KTP-445A Power Pack Amplifier stand out?
The KTP-445A delivers 45 watts RMS per channel for powerful and dynamic sound, all in a compact and efficient design. -
Is the Alpine KTP-445A easy to install?
Yes, the amplifier features a plug-and-play installation process with included wiring harness and mounting hardware for a hassle-free setup. -
Can the Alpine KTP-445A integrate with any head unit?
While it is optimized for Alpine head units, the KTP-445A can be integrated with other brands for improved audio performance. -
Is the Alpine KTP-445A durable?
Yes, the amplifier is built with robust construction and includes thermal and overload protection for enhanced durability. -
What is the power output of the Alpine KTP-445A?
The amplifier provides 45 watts RMS per channel at 2Ω/4Ω, with a dynamic peak power output of 180 watts. -
Does the Alpine KTP-445A come with a warranty?
Yes, the Alpine KTP-445A typically comes with a manufacturer’s warranty, offering peace of mind with your purchase.
Conclusion
Upgrade your car audio system with the Alpine KTP-445A Power Pack Amplifier for superior sound quality in a compact design. Offering powerful performance, seamless integration, and enhanced durability, this amplifier is a perfect addition to any vehicle. Order now and enjoy dynamic sound on every drive with Alpine!

What Others Are Saying
Eddie was great - SDCS installed a new head unit in my 2019 4Runner. He was honest in his opinions regarding the options I was considering. Pricing was also good - he was able to reuse some of my existing installation kit so I saved a bit of $$.Installation was clean and fast and he took the time to walk through the features before I left. Highly recommend!!
I had a great time at this shop! The staff really knows their stuff and took the time to explain the different options without pressure. Installation was quick, clean and professional. Everything looks factory and sounds amazing. The prices were fair and customer service was above and beyond. I highly recommend this place if you're looking for quality car audio and excellent service.
Those guys are really professional! I had a new Alpine floating head unit installed in my 2008 Mercedes, and it feels like a brand-new car. The installation was super clean. At first, the sound wasn’t the same as the factory stereo, but Kevin tuned it to be just as good—if not better—without adding any new amps. They even used my factory GPS antenna so I don’t have extra wires hanging out. On top of that, they matched the online price. Big thanks to Kevin and Eddie—highly recommended!
Kevin was awesome, he took his time and explained everything to me. I went in initially for a dash cam install and then decided to get a sub and amp installed as well. Both turned out great and will be returning if I need more work done.
Came In not knowing what to expect when suddenly my stereo stopped working. Spoke with Kevin in the front and after a VERY fast diagnosing they discovered my wiring was incorrect. After only about 45 minutes total being in the store I was on my way to the beach with a working stereo again! Thank you so much SDCARSTEREO
Highly recommend Kevin and the team at San Diego Car Stereo for any issues with aftermarket stereos. I bought a car with an aftermarket stereo and AC unit that wasn’t working properly—specifically, the heat wasn’t functioning due to an improper setup. I had several people look at it with no luck, and even the dealership basically refused to help because it was an aftermarket install. I came to Kevin and his team over the holidays feeling pretty defeated, but he was confident he could get the heat working before I headed back to a Colorado winter. Sure enough, he got it done.
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.
