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Amplificador Compacto 4 x 45W @ 2 Ohms


O KTA-450 é um amplificador de 4/2 canais muito compacto, projetado principalmente para ser alimentado com o  iLX-W650BT, mas também pode ser usado em qualquer outra configuração universal.

Apresentando a tecnologia Dynamic Peak Power (DPP) da Alpine, o KTA-450 pode adicionar rajadas de energia de 100 W RMS quando for necessário.

Em combinação com o iLX-W650BT, o KTA-450 ganhou o Prêmio de Inovação de 2019 no CES Show 2019. Se você planeja comprar um  iLX-W650BT,este pequeno amplificador fará uma melhoria significativa em o seu sistema.

Informação do produto
KTA-450 Power-stacked with the iLX-W650BT
KTA-450 Power Boost for your Head Unit

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 para sua Unidade Principal

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.

KTA-450 High-Pass Filters
KTA-450 Versatile & Compact

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.

Características & Especificações



  • Terminal Layout: One side
  • Small footprint for easy installation
  • Connector terminal (for speaker and power cables)


  • 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


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


  • 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


  • Width:  89mm
  • Height: 36mm (39mm with attached universal bracket)
  • Length: 181mm (198mm with attached universal bracket)
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