AR1-8000D | Arachnid Series 8,000W Monoblock Class D Car Stereo Amplifier

Soundstream AR1.8000D – 8000W Class D Monoblock Amplifier (1 Ohm Stable)

The Soundstream AR1.8000D Monoblock Amplifier is a powerhouse designed for serious car audio enthusiasts looking to push their subwoofers to the next level. Part of the Arachnid Series, this high-output Class D amplifier combines raw wattage, clean efficiency, and flexible installation into a compact and durable design.

Built for deep bass and high-performance systems, the AR1.8000D delivers up to 8000 watts of max output. It’s 1-ohm stable, strappable, and equipped with professional-grade tuning features to ensure your subwoofers receive the clean, controlled power they need to perform at their peak.

Key Features and Technical Specifications

Model: Soundstream AR1.8000D

Series: Arachnid Monoblock

Amplifier Class: Class D

Channels: Monoblock (1 channel)

Power Output: 8000W MAX

Impedance Stability: 1 Ohm

Power Supply: High-efficiency MOSFET PWM

Crossover Controls: Variable Low-Pass Filter

Subsonic Filter: Adjustable (10Hz–50Hz)

Bass Boost Control: Remote gain knob included

Protection Features: Thermal, overload, and short circuit protection

Inputs/Outputs: RCA line-level inputs, speaker terminals

Cooling: Heavy-duty aluminum heatsink

Bridgeable: Yes (Strap Mode for dual amp setup)

Design: Compact footprint for flexible mounting

High-Efficiency Class D Power

Unlike traditional Class A/B amps, the AR1.8000D uses Class D technology for significantly improved efficiency and lower heat output. This means it can produce higher wattage without overloading your electrical system. The result is a more reliable and consistent performance, especially at low frequencies where subwoofers demand the most energy.

With a peak output of 8000 watts, this amp is well-suited for powering large subwoofers or multiple sub setups. It delivers clean, distortion-free low-end power with total control over frequency filtering and gain levels.

Built for Bass Performance

This monoblock amplifier is engineered for subwoofer applications. Whether you’re pushing a single high-powered driver or a dual-subwoofer system, the AR1.8000D offers precision bass management through its onboard tuning features.

• The variable low-pass filter ensures your subs receive only the bass frequencies they’re designed to handle.
• The adjustable subsonic filter protects your speakers from damaging ultra-low frequencies.
• The remote gain control knob allows you to adjust bass levels on the fly from the driver's seat.

Every control is designed to help you fine-tune your sound for optimal low-frequency performance and maximum impact.

1 Ohm Stability and Strapping Capability

Thanks to its 1-ohm stable circuit design, this amplifier can be used in a variety of configurations, including dual voice coil and multi-sub setups. It’s built to accommodate system growth and higher load demands without overheating or shutting down.

When you need more power, the AR1.8000D can be strapped with another unit in bridge mode, effectively doubling your power output while maintaining clean and balanced output. This makes it a favorite among SPL competitors and high-end custom installs where scalability and flexibility matter.

Durable Construction and Protection

The AR1.8000D features a rugged, compact chassis that fits in tight spaces and resists vibration. Its advanced thermal management system, including an oversized aluminum heatsink, ensures that the amp stays cool under pressure.

Built-in protection circuits prevent damage from short circuits, overloads, and overheating. This layer of defense keeps your investment safe, even when pushing your subs to their limits.

Ideal Applications

• Custom car audio subwoofer systems
• SPL competition setups requiring high wattage
• Vehicles running multiple subwoofers or DVC subs
• Upgrades from underpowered factory or entry-level amps
• Installations requiring compact amplifiers with powerful output