Plan Your Build with SMS Car Audio
Get the right product for your vehicle, audio goals, and installation needs before purchase.
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Description
ARC Audio X2 450.4 4-Channel Amplifier
The ARC Audio X2 450.4 is a compact 4-channel Class-D amplifier for clean speaker upgrades, front and rear speaker systems, and practical daily-driver builds.
At SMS Car Audio, the X2 450.4 is a strong option when a customer needs reliable multi-channel power for a clean factory speaker upgrade or a simple amplified system without stepping into a larger DSP amplifier platform.
Key Features
- 4-channel Class-D amplifier design.
- Useful for front/rear speaker upgrades and basic multi-channel system builds.
- Can be bridged when a higher-power 2-channel layout is needed.
- Good fit for X2 speaker packages and practical sound-quality upgrades.
Power Configuration
- 85 watts x 4 channels at 4 ohms.
- 125 watts x 4 channels at 2 ohms.
- 250 watts x 2 channels bridged at 4 ohms.
SMS System Planning Notes
The X2 450.4 should be matched to the vehicle, speaker layout, wiring plan, and system goals. Final quotes may include installation labor, power wiring, signal integration, accessories, and vehicle-specific parts.