【ARC Audio KS 300.2 V3｜A 2ch Power Amplifier That Doesn’t Compromise Even in a Compact Size】

You’d like to bring your car audio sound up another notch, but it’s hard to secure enough space to add a large power amplifier. If so, the ARC Audio KS 300.2 V3 is worth considering.

As suggested by the KS series principles—“Solid,” “Proven,” and “Quality”—this is a 2ch power amplifier that packs the performance needed to reproduce music properly into a size that’s easy to handle. Although it’s a compact amplifier, it’s not a product that prioritizes size alone. With components based on pro-audio design concepts and design technology by Mr. Robert Zeff, it becomes easier to build a system with minimal compromises even in limited in-car space.

When You Want More Headroom in the Sound

When you listen to music through a factory audio system or an in-head-unit built-in amplifier, you may find that when you raise the volume, the sound feels strained, or the fine details in vocals and instruments don’t come together as well. Even if you replace the speakers, if the amplifier’s drive power and the overall system balance don’t match, you may not be able to fully bring out the speakers’ true potential.

In addition to being easy to use as a 2ch amplifier for front speakers, the KS 300.2 V3 can also be used as a 1ch amplifier in bridge connection depending on the system configuration. It’s a model well-suited for anyone who wants to drive their speakers properly, for those who want to add an amplifier in limited space, and for anyone planning to upgrade their car audio step by step.

Since it includes both a crossover function and a bass boost, you can adjust it to match the speakers and subwoofer you connect, as well as how it sounds inside the cabin. However, just because it has these functions doesn’t mean you should simply turn them up. It’s important to adjust while considering the entire system so that only the bass doesn’t stand out and the connection with the front speakers doesn’t become unnatural.

Installation Made Easy by Leveraging the Compact Chassis

The unit measures approximately 286×203×60mm. The available mounting locations vary depending on the vehicle and your existing system, but for those who want to add an amplifier and are concerned about space, it’s a size that’s relatively easy to consider.

Installing an amplifier isn’t something you’re “done” with once it’s mounted. The final result is determined by everything from power and signal routing, mounting method, how it combines with existing equipment, wiring treatment, and even serviceability/maintenance. Even with the same KS 300.2 V3, depending on where and how you install it, the ease of use and how cohesive the overall system feels can change.

At LOGON, we discuss together whether to add the amplifier by itself or to combine it with speakers, a DSP, and more, after confirming your vehicle model, your current audio setup, the music you usually listen to, your preferred volume level, and how you plan to upgrade the system in the future. If it were me, I wouldn’t decide purely based on the amplifier’s specifications—I’d first organize what you want to improve in your current system, then decide the configuration.

What you’re looking for differs from person to person—for example, “I want a bit more thickness to the sound,” “I replaced the speakers, but it’s still not quite enough,” or “I want to add an amplifier while avoiding major changes.” Please consult us in a practical, no-drama way while looking at your actual vehicle, including whether the KS 300.2 V3 fits your vehicle and your goals. We’ll think together about a system that lets you enjoy your usual music comfortably, including the adjustments after installation.

Main Specifications / Specs

【Basic Information】
Product name: KS 300.2 V3
Brand: ARC Audio
Type: 2ch power amplifier
Amplifier class: G/H class

【Output】
4Ω: 180W × 2ch
2Ω: 350W × 2ch
In bridge mode: 700W × 1ch (4Ω)

【Adjustment Functions】
Crossover: 55Hz～5.5kHz (-12dB/oct)
Bass boost: +16～18dB @45Hz

【Frequency Response】
11Hz～57kHz (measured value)

【Size】
Approx. 286×203×60mm