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

Model #: KTA-450
At a Glance

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.

$199.95Save $NaN

Get to know this product.

  • 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
  • DPP Power Rating: 100W DPP x 4 (2/4 Ohm, 14.4V, =1% THD+N)
  • CTA-2006 Power Rating: 45W RMS x 4 (2/4 Ohm, 14.4V, =1% THD+N)
  • >82dB S/N (ref. 1W into 4 Ohm)

Award-Winning Powerstack Compatibility

Exclusive Amplifier Technology, Dynamic Peak Power (DPP)

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.

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

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.

Useful Documents

Misc. Specs

Depth (in.)1.25
Width (in.)7
Height (in.)3.5
Amplifier ClassClass D
Bluetooth CapableNo
Amplifier Channels4
Rms Power Handling100
Impedance2 - 4 Ohms
Water ResistantYes
Speaker Level InputYes
Shallow MountNo
Digital InputNo
Number Of Outputs1
Minimum Impedance Unbridged2 Ohm
Number Of Inputs1
Product Weight1.3
WarningProposition 65 Warning for California Residents