Alpine KTP-445A Compact 4ch Power Pack Amplifier

SKU: KTA-450
The KTA-450 is a very compact 4/2-Channel amplifier, that is mainly designed to be power-stacked with the iLX-W650BT, but can also be used stand-alone in any universal configuration. read more read less
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Featuring Alpine’s Dynamic Peak Power (DPP) technology, the KTA-450 can add bursts of 100 Watts RMS power when needed.
In combination with the iLX-W650BT, the KTA-450 won the 2019 Innovations Award at CES Show 2019. If you plan to buy an iLX-W650BT, this tiny amplifier will make a significant improvement to your system.

Power-stacked with the iLX-W650BT
Mounted together, the iLX-W650BT and the KTA-450 amplifier measure at less than 12,7 cm deep, so they can fit in any standard 2DIN radio dock to create Alpine’s award winning Power-Stack design. Brackets and included cable harnesses allow for a fast and easy install. Enjoy the extra sound system boost without the bulk and hassle of a traditional amp.
Power Boost for your Head Unit
Give your iLX-W650BT a sound boost with the 4-Channel KTA-450 Power Pack amplifier, that emits 4 x 50 Watts RMS. Thanks to Alpine’s exclusive Dynamic Peak Power (DDP) technology, this can even increase to 100 Watts DDP per channel during dynamic musical passages.

High-Pass Filters
The KTA-450 features a selectable high-pass filter (60, 80 and 120Hz at 12dB/octave) on front and rear channels. This comes especially handy, if your head unit does not include such sound tuning capabilities.
Versatile & Compact
With built-in preamp and speaker-level inputs (2- or 4-channel input), this tiny amplifier works with many car stereo systems – regardless of OEM or Aftermarket. At only 89mm x 181mm x 36mm it is one of the most compact 4 x 50 Watts RMS amplifiers on the market.

FEATURES
Install
  • Terminal Layout: One side
  • Small footprint for easy installation
  • Connector terminal (for speaker and power cables)
General
  • Amplifier Type: Class-D (Digital)
  • Channel Design: 4/2 Channel (3 Channel configuration not possible)
  • DIP Switches
  • RCA and Speaker Level Inputs
  • Crossover: Adjustable High-Pass Filter (HPF)
  • Gain Control: Front / Rear Adjustable
  • Included Power-Stack bracket and screws for back-mount to iLX-W650BT
  • Included cable harness
SPECIFICATIONS
RMS Power Ratings
  • Per Channel into 2 Ohms, 14.4V (≤1%THD+N): 4 x 45W
  • Per Channel into 4 Ohms, 14.4V (≤1%THD+N): 4 x 50W
  • Bridged, 4 Ohms, 14.4V: 2 x 100W
DPP (Dynamic Peak Power) Power Ratings
  • Per Channel into 2 Ohms, 14.4V (≤1%THD+N): 4 x 100W
  • Per Channel into 4 Ohms, 14.4V (≤1%THD+N): 4 x 100W
Sound Tuning
  • Crossover: Selectable HPF: 60, 80, 120Hz (-12dB/oct) on front and rear channels
General
  • Power Requirements: 14.4 V.DC (9 - 16 V allowable)
  • Frequency Response (+0/ -3dB: 1W into 4 Ohms): 15Hz – 50kHz
  • THD+N (@ 10W into 4 Ohms): <0.2%
  • S/N Ratio: AES-17, Ref: 1W into 4 Ohms: >85dB
  • Weight: 0.6kg
Dimensions
  • Width:  89mm
  • Height: 36mm (39mm with attached universal bracket)
  • Length: 181mm (198mm with attached universal bracket)