1,800 Watts Maximum Output

The RED1800.5 offers substantial output for demanding aftermarket systems.

RMS Power Ratings

Four-Channel Speaker Output

• 140W x 4 @ 4 Ohms
• 220W x 4 @ 2 Ohms

Mono Subwoofer Channel

• 600W RMS @ 4 Ohms
• 980W RMS @ 2 Ohms
• 1,280W RMS @ 1 Ohm

These power ratings allow the amplifier to drive high-performance speakers while delivering serious power to modern subwoofers.

1-Ohm Stable Mono Channel

One standout feature is the dedicated mono channel’s 1-ohm stability.

Benefits include:

• Maximum subwoofer output
• Greater wiring flexibility
• Support for multiple subwoofers
• Increased amplifier efficiency
• Compatibility with high-performance bass systems

Whether running a single high-power subwoofer or multiple drivers wired to 1 ohm, the RED1800.5 is built to handle the load.

Efficient Class D Technology

The amplifier utilizes Class D circuitry, providing excellent efficiency while minimizing heat generation.

Advantages include:

• Higher efficiency
• Reduced electrical demand
• Cooler operating temperatures
• Smaller chassis size
• Reliable daily operation

This makes the RED1800.5 ideal for compact installations without sacrificing performance.

High-Speed MOSFET Power Supply

A high-speed MOSFET power supply ensures consistent voltage delivery during demanding listening sessions.

Benefits include:

• Stable power output
• Fast transient response
• Improved amplifier efficiency
• Reduced voltage fluctuation
• Long-term reliability

Combined with premium internal components, the amplifier delivers clean, controlled audio throughout its operating range.

Remote Bass Knob Included

The included remote bass level controller allows drivers to adjust subwoofer output without changing amplifier settings.

This is especially useful when switching between:

• Music genres
• Daily driving
• Highway cruising
• Bass-heavy playlists

Quick bass adjustments can be made directly from the driver’s seat.

Built-In Audio Tuning Controls

The RED1800.5 includes an integrated control panel that allows users to fine-tune their audio system.

Adjustments include:

• Gain control
• Variable low-pass filter
• Subsonic filter
• Bass EQ

These controls make it easier to match the amplifier to your speakers, subwoofer, enclosure design, and personal listening preferences.

Four-Way Protection Circuitry

To improve long-term reliability, Recoil equips the RED1800.5 with multiple protection systems.

Features include:

• Thermal protection
• Short-circuit protection
• Overload protection
• Voltage protection

These safeguards help protect both the amplifier and connected speakers during daily use.

Advanced Cooling System

Powerful amplifiers generate heat, especially during extended listening sessions.

The RED1800.5 uses:

• Large aluminum heatsinks
• Efficient Class D circuitry
• Optimized airflow
• Modern thermal management

This helps maintain stable performance even under demanding conditions.

Compact Installation Size

Despite its impressive power output, the amplifier maintains a manageable footprint.

Dimensions:

• 14.6 inches × 7.6 inches × 2.2 inches
• 370 × 193 × 56 mm

Its compact size makes installation easier in:

• Trunks
• SUVs
• Pickup trucks
• Hatchbacks
• Custom amplifier racks

Key Features

• 5-channel Class D amplifier
• 1,800 Watts maximum output
• 140W x4 RMS @ 4 Ohms
• 220W x4 RMS @ 2 Ohms
• 600W RMS @ 4 Ohms (sub)
• 980W RMS @ 2 Ohms (sub)
• 1,280W RMS @ 1 Ohm (sub)
• 1-ohm stable mono channel
• High-speed MOSFET power supply
• Remote bass level controller included
• Variable LPF and subsonic filter
• Adjustable Bass EQ
• Four-way protection circuitry
• Compact aluminum heatsink chassis

Final Verdict

The Recoil RED1800.5 is an outstanding amplifier for enthusiasts looking to power an entire car audio system with one compact unit. Its powerful dedicated subwoofer channel, true 1-ohm stability, built-in tuning controls, MOSFET power supply, and included remote bass knob make it equally at home in daily drivers and serious bass-focused builds.

Whether you’re upgrading factory speakers, installing components, or adding a high-output subwoofer, the RED1800.5 delivers impressive performance while keeping installation clean and straightforward.