Alpine 4-Channel Power Pack Amplifier With PowerStack - KTA-450

Alpine KTA-450 4-Channel Power Pack Amplifier With PowerStack

Compact Power for a Bigger Car Audio Upgrade
The Alpine KTA-450 4-channel power pack amplifier is designed to bring more energy to your system without taking up valuable space. Delivering 400W Dynamic Peak Power (DPP) across four channels, this compact amplifier adds the kind of clean, efficient power that can help elevate your in-car listening experience. With 50W RMS x 4 at 2 or 4 ohms, it provides a balanced boost for a wide range of compatible speaker setups.

Built for Smart Integration
One of the standout features of the Alpine KTA-450 is its first-of-its-kind stacking installation. Using the supplied PowerStack bracket, it can be paired with the Alpine iLX-W650 to create a streamlined, space-saving setup that keeps your dashboard looking clean and organized. This unique configuration was recognized with a CES 2019 Innovations Award, making it a great option for drivers who want modern performance and convenient installation in one package.

Clean Look, Easy Fit
Finished in black, the Alpine KTA-450 blends easily into your vehicle’s interior and offers a professional appearance once installed. Its compact size and lightweight design make it a practical choice for audio enthusiasts looking to add power without adding bulk. If you're building a car audio system around the Alpine iLX-W650, this 4-channel amplifier is a strong match for improving overall sound performance.

Key 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
• PowerStacking bracket included for mounting to the iLX-W650 7” Mech-less AV Receiver (sold separately)
• The KTA-450 used with the iLX-W650 is a 2019 CES Innovation Awards Winner

Features

• Award-Winning Powerstack Compatibility
  The KTA-450 can mount behind select Alpine 2-DIN mech-less head units, like the iLX-W650, using the included bracket. The KTA-450’s recessed harness receptacle allows the wiring to fold between it and the head unit so both products fit in a standard 2-DIN space. This PowerStack design is a 2019 CES Innovation Awards winner and makes the duo one of the most powerful 2-DIN radios available.
• Exclusive Amplifier Technology, Dynamic Peak Power (DPP)
  The KTA-450 features Alpine’s exclusive Dynamic Peak Power (DPP). DPP intelligently adjusts the gain to adapt to musical needs. DPP prevents the KTA-450 from clipping by supplying up to double the power for sudden, dynamic sounds. DPP ensures music sounds the way it should at high volumes and boosts the KTA-450 to 400 watts DPP, doubling its power without increasing its size.
• Compact Size for Hidden Installation Applications
  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.
• Simple Installation for Use With Any Radio
  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.