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The Alpine KTA-F30W is the ideal solution for those who want a serious audio upgrade without sacrificing space. Designed to work seamlessly with aftermarket or factory head units, this compact powerhouse delivers up to four times more power than your head unit’s built-in output, giving your music the clarity, volume, and impact it deserves—all in a sleek, space-saving design.
Experience power when it matters most with Alpine’s exclusive Dynamic Peak Power (DPP) technology. This innovative design provides instant bursts of extra power during intense musical peaks, ensuring every beat hits harder and every note stays crystal clear. When your music demands more, the KTA-F30W automatically boosts its internal gain, delivering up to double the power for a thrilling increase in dynamic range—even at high volumes.


Built for adventure and durability, the KTA-30FW is IP66-rated, offering complete protection against dust and powerful water jets. Its rugged chassis and high-quality waterproof connectors make it ideal for installations exposed to the elements—whether on side-by-sides, boats, open-top vehicles, or motorcycles. No matter where the road (or water) takes you, this amplifier is ready to perform.
Dynamic Peak Power delivers bursts of up to 150 watts per channel for increased impact and dynamic range during demanding music passages.
Provides 75 watts RMS per channel at 2 or 4 ohms for a substantial upgrade over the power of a factory or aftermarket head unit.
The IP66-rated design helps protect against dust and high-pressure water spray for dependable performance in exposed environments.
Alpine's Class D amplifier circuit delivers powerful four-channel performance in a compact, efficient package.
Measuring just 9-3/16" x 1-5/8" x 3-3/4", the KTA-30FW fits under dashboards, in glove compartments and other tight spaces.
Selectable speaker-level and RCA inputs make the amplifier compatible with both factory and aftermarket head units.
Selectable Off, HP and LP crossover modes with a variable 50–400Hz range provide flexible control over your system's sound.
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this small amp pushes serious power, perfect fit for tight spaces. It works outstanding with the mid's and highs, lows is still good too. sounds completely crisp and clear, brought my speakers back to life.
this amp sounds great, completely crisp and clear. very powerful and is compact, and super easy to install. great highs, lows, and mids, and delivers a balanced sound. highly recommending this amp!
got more power than my old Alpine amp which made my speakers sound alive again. and i feel that its louder now. huge difference from my old setup, and it's easier to install too
Now my F150 has a better sound thanks to this tiny amp. Got some plenty of power my speakers. Really excellent amp from Alpine.