ARC Audio
- X2 AmplifierS

Breakdown: Level 1 (Black) vs. Level 2 (Silver)

At Advanced Car Audio Solutions, we carry both Level 1 and Level 2 ARC Audio X2 amplifiers—and we get this question all the time:

“What’s the difference between the Black and Silver X2 amps?”

Let’s break it down so you can decide which level is right for your build. For compairsion purpuses lets look at the 4-Channels.

Level 1 (Black) – X2 450.4

Designed for solid performance on a budget, the X2 450.4 is perfect for standard upgrades or adding clarity to mids and highs.

It features:

  • 85W x 4 @ 4Ω

  • 125W x 4 @ 2Ω

  • 250W x 2 Bridged @ 4Ω

  • Basic crossovers (HPF/LPF @ 12dB/octave)

  • Rear channel bass boost (0–9dB @ 45Hz)

  • Start-stop system compatibility

  • Compact design with 2 x 25A fuses

This amp delivers great sound and efficiency for customers looking to step up from factory or entry-level systems.

Level 2 (Silver) – X2 600.4

Now here’s where things get serious. The X2 600.4 brings more power, cleaner output, and a larger power supply section for high-performance builds.

It adds:

  • 150W x 4 @ 4Ω

  • 150W x 4 @ 2Ω

  • 300W x 2 Bridged @ 4Ω

  • Advanced crossover capabilities including bandpass filtering

  • Remote level control included

  • Larger footprint with 2 x 30A fuses

  • Brushed aluminum finish with illuminated logo

This amp is engineered for those who demand more dynamic range, better control, and a true high-fidelity experience.

⚙️ Side-by-Side Comparison (4-channel amps)

💥 Mono Amp Comparison – Built for Bass

ARC AUDIO MODEL X2 450.4 Amplifier

X2 650.1 – Level 1 (Black)

Compact and capable, the 650.1 is perfect for single-subwoofer setups or efficient builds:

  • Rated Power:

    • 400W x 1 @ 4Ω

    • 650W x 1 @ 2Ω

  • Frequency Response: 20Hz–230Hz

  • Subsonic Filter: 10Hz–50Hz

  • Low Pass Filter: 50Hz–230Hz

  • Bass Boost: 0–9dB @ 45Hz

  • Fuse: 2 × 25A

  • Size: 8.17" × 6.26" × 2.08"

  • Start-Stop Compatible: Yes

ARC AUDIO MODEL X2 600.4 Amplifier

X2 1100.1 – Level 2 (Silver)

For bassheads and audiophiles alike,
the 1100.1 delivers serious control and headroom:

  • Rated Power:

    • 650W x 1 @ 4Ω

    • 1100W x 1 @ 2Ω

  • Frequency Response: 20Hz–230Hz

  • Subsonic Filter: 10Hz–50Hz

  • Low Pass Filter: 50Hz–230Hz

  • Bass Boost: 0–9dB @ 45Hz

  • Remote Level Control: Included

  • Fuse: 2 × 40A

  • Size: 9.02" × 6.26" × 2.16"

  • Start-Stop Compatible: Yes

⚙️ Side-by-Side Comparison (MONO BASS/MIDBASS amps)

🔊 ARC Audio X2 5-Channel
- Amplifier Comparison

🔥 ARC Audio X2 1200.6 – 6 Channels of Pure ControL

The Ultimate Flexible Amplifier for Active and Multi-Zone Setups

Looking to run an active 3-way front stage, a full car system with sub, or multiple zones with DSP?
The X2 1200.6 is ARC Audio’s powerhouse 6-channel amplifier built for performance, control, and scalability.

🎯 Why Choose the X2 1200.6?

Perfect for Active Systems
Run tweeters, midrange, and midbass channels individually with total control.

  1. Flexible for OEM Integration or Full Custom Builds
    Combine with a DSP for a show-winning setup or use it to upgrade your daily with incredible clarity and headroom.

  2. Power + Precision in One Chassis
    Whether you’re building a car, SUV, or marine system, the 1200.6 gives you clean, stable power from a single amp footprint.

🚀 ARC Audio X2 2500.1
– The Pinnacle of X2 Amplification

When raw power meets refined engineering, you get the X2 2500.1 — ARC Audio’s most formidable monoblock amplifier.

Designed for serious bass enthusiasts and competitors, this amp delivers unparalleled performance and control.

🔧 Key Specifications

  • Power Output:

    • 900W x 1 @ 4Ω

    • 1500W x 1 @ 2Ω

    • 2500W x 1 @ 1Ω

  • Frequency Response: 10Hz – 230Hz

  • Crossover Range: 30Hz – 230Hz @ 24dB/Oct

  • Bass Boost: 0 – 12dB @ 30Hz – 125Hz

  • Input Sensitivity: 200mV – 3.5V

  • Fuse Rating: 6 × 40A

  • Dimensions: 21.25" (L) × 6.268" (W) × 2.162" (H)

  • Remote Level Control: Included

  • Start-Stop Vehicle Compatible: Yes (<8 Volts)

🎛️ Features & Benefits

  • High-Efficiency Class-D Design: Ensures maximum power delivery with minimal heat generation.

  • Microprocessor-Controlled Protection: Provides real-time monitoring for thermal, voltage, and current anomalies.

  • Fully Balanced Input Stage: Enhances noise rejection and signal integrity.

  • Flexible Mounting Options: Allows for both vertical and horizontal installations with a shorter height than traditional Korean Style Amps but will all the power.

  • Elegant Aesthetics: Brushed silver aluminum chassis with an illuminated, rotatable acrylic badge for a sleek, modern look.

🎯 Ideal Applications

  • High-Power Subwoofer Systems: Perfect for driving large subwoofers or multiple sub setups.

  • Competition-Level Audio Builds: Delivers the power and clarity needed for SPL competitions.

  • Audiophile-Grade Installations: Ensures precise bass reproduction for discerning listeners.

🧠 Which One Is Right for You?

If you're building a clean, simple system and don’t need a ton of power, Level 1 (Black) is a smart choice that still delivers real ARC Audio performance.

But if you're chasing clean power, improved sound quality, and headroom to grow your system, go with Level 2 (Silver). The upgraded power supply and scalable output sections make all the difference.

Need to mix and match, add the silver housing to the Level 1 or Don’t install the the silver housing on the Level 2. You can match which ever color style you want with the versatile X2 Amp line by Arc Audio. They have thought of just about everything….

Have more questions or want to know more?

📍 Stop by Advanced Car Audio Solutions