Product overview
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.
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.
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.
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.
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.
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.
Key features
- Small footprint for easy installation
- Connector terminal (for speaker and power cables)
- DIP Switches
- RCA and Speaker Level Inputs
- Included Power-Stack bracket and screws for back-mount to iLX-W650BT
- Included cable harness
Technical specifications
| Install | |
|---|---|
| Terminal Layout | One side |
| General | |
| Amplifier Type | Class-D (Digital) |
| Channel Design | 4/2 Channel (3 Channel configuration not possible) |
| Crossover | Adjustable High-Pass Filter (HPF) |
| Gain Control | Front / Rear Adjustable |
| 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) |
What you are ordering
The exact Alpine model shown above, SKU KTA-450. Confirm vehicle compatibility for installation kits, interfaces and vehicle-specific systems before checkout.
Product information verified against the official Alpine product page.