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.

Up To 5x Speaker Power
Give your iLX-W690D 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 (DPP) technology, this can even increase to 100 Watts DPP per channel during dynamic musical passages. Or power-stack the KTA-200M and connect a compatible subwoofer for extra bass in your system..

Power-Stacked To Save Space
Mounted together, the iLX-W690D and the KTA-450 or KTA-200M 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.

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)