SK-790.4 4-Channel 12V Car Power Amplifier

Upgrade your car audio with a 4-channel car power amplifier built for stronger, cleaner sound across your speakers and passive subwoofer setup.

Its Class A/B design combines high output with low distortion, so your music sounds fuller and more detailed on daily drives. With RMS power output of 120W x 4 at 4Ω and bridged peak output up to 3900W x 2 at 4Ω, it is designed for multi-speaker and surround-style installations.

Why this car power amplifier improves your sound

✅ Enjoy louder, more immersive audio with 4-channel amplification for your car system.

✅ Hear cleaner detail at high volume with THD below 0.01%.

✅ Get stronger bass output by supporting a passive subwoofer setup.

✅ Fit more easily into your vehicle with a slim amplifier design.

✅ Drive compatible speakers confidently with 2Ω to 4Ω impedance support.

✅ Listen with less background noise thanks to a signal-to-noise ratio above 95dB.

The aluminium alloy housing and external heat sink help manage heat during longer listening sessions. Thermal overload protection and speaker short protection add extra peace of mind while powering your system.

This amplifier runs on DC 12V and covers a 20Hz to 40KHz frequency range for broad audio reproduction. Audio sensitivity of 150mV supports integration into compatible car audio upgrades, and a user manual is included.

Compact housing suits tighter installation spaces.

Four channels let you power more speakers.

Black finish gives your setup a clean look.

External fins help release heat efficiently.

Detailed panel layout supports easier wiring.

Wide frequency range supports fuller sound reproduction.

Solid casing adds durability in car installations.

Channel design suits four-door speaker upgrades.

Visible controls allow more precise setup adjustments.

Connection points are clearly arranged for installation.

Technical diagram highlights key amplifier functions.

Multi-channel output supports surround-style audio setups.

Side profile shows the slim amplifier body.

Metal construction helps maintain structural strength.

Heat sink design supports stable performance.

Front controls are visible for quick reference.

Rear terminals support organized speaker connections.

Angled view shows the amplifier's compact footprint.

Included manual helps you start installation faster.

Upgrade your car audio with clean 4-channel power today.