【ARC Audio ARC 1000.4｜4ch Power Amplifier Built to Refine the Sound Foundation】

You want a bit more punch in your factory audio, but when you turn up the volume the sound gets harsh or you start getting listening fatigue, and speaker replacement alone didn’t produce the change you expected. If that sounds like you, consider the ARC Audio 4ch power amplifier, ARC 1000.4.

The ARC Series, which inherits the design philosophy of Robert Zeff, is a model that packs high output and the ability to support fine adjustments into a compact amplifier. The ARC 1000.4 provides 250W output for each of its 4 channels, allowing it to drive your front and rear speakers firmly. It also supports bridged connections as a 2ch amplifier, making it easier to choose while considering your system setup and future speaker combinations.

Adding an amplifier doesn’t just mean a louder volume. With extra headroom to move the speakers, you can more easily bring out the overall expressive power of the music—such as the definition of vocals and instruments, the attack of sounds, and the thrust of the bass. Even with songs you listen to all the time, you may notice a shift in how the sound comes forward or in the clarity when multiple sounds overlap.

Since the ARC 1000.4 supports both full-balanced input and high-level input, it’s designed to be easy to incorporate into systems that take advantage of OEM navigation and factory audio. It also supports adjusting input sensitivity, so you can plan the setup in a practical way while checking the relationship between the vehicle’s output and your existing system. The power supply section uses low-impedance chokes and ultra-low ESR capacitors, and is designed to help suppress power-supply noise.

Furthermore, it’s compatible with the separately sold IPS 8.8 DSP module, making it suitable for those who want to perform detailed soundstage adjustments in the future to match the acoustics inside the car. When combining with a DSP, it’s important to consider not only installing the amplifier, but also how to connect with the factory system, the speaker efficiency, how it ties in with a subwoofer, and how it will sound in the cabin.

Even with the same amplifier, the final result will vary depending on the installation method, power and ground treatment, signal wiring, gain adjustment, and DSP settings. At LOGON, we review your vehicle model and current system, the music you listen to often, and the direction of sound you want—together to determine whether a configuration that includes the ARC 1000.4 makes sense.

If speaker replacement alone isn’t enough, or if you want to aim for a step-up sound based on OEM audio, or if you’re thinking about more serious adjustments using DSP in the future, please feel free to consult us. Rather than simply adding an amplifier, we’ll shape a realistic system by looking at where that particular car can benefit most to make it easier to enjoy your music.

■ Main Specifications / Specs

【Basic Information】
Product name: ARC 1000.4
Brand: ARC Audio
Type: 4ch power amplifier

【Output】
Output: 250W × 4ch (2/4Ω)
Bridge output: 500W × 2ch (4/8Ω)

【Input / Expansion】
Full-balanced input
Supports high-level input
Supports IPS 8.8 DSP module
8× RCA input for IPS 8.8
4× output terminals

【Key Features】
High-pressure die-cast heatsink
Rough black anodized finish with CNC accent processing
Smart cooling via a microcontroller-controlled fan
Class D + TAMB power control
Uses low-impedance chokes and ultra-low ESR capacitors
The IPS 8.8 DSP module is a replaceable type using bottom screws