OD4-1800 | 1800W Class A/B 4-Channel Full Range Amplifier

Power Acoustik OD4-1800: 1800W 4-Channel Class-D Amplifier Built for Real Systems

The Power Acoustik OD4-1800 packs 1800 watts of true multi-channel output into a compact footprint made for custom installs and factory upgrades alike. As part of the Overdrive Series, this 4-channel full-range Class-D amplifier provides high output and thermal stability, while remaining efficient under demanding conditions.

Designed for car audio setups where power distribution, clarity, and space all matter, the OD4-1800 is optimized for running full-range door speakers, midbass drivers, or tweeter arrays. With Class-D topology, this amp minimizes heat buildup and power strain without compromising dynamic range.

Key Performance Specs:

• RMS Power Output:
  • 100W x 4 @ 4 ohms
  • 150W x 4 @ 2 ohms
  • 300W x 2 @ 4 ohms bridged
• Max Power: 1800 watts total
• Frequency Response: 20Hz–20kHz full range
• Variable Crossover Filters: HPF & LPF with 12dB/octave slope
• Signal-to-Noise Ratio: 100dB+

Optimized for Flexible System Builds

Whether you're integrating with OEM head units or an aftermarket deck, the OD4-1800 amplifier supports both high-level and low-level inputs. This makes it ideal for daily drivers, SQ-focused setups, or bass-intensive builds needing clean front-to-rear amplification.

Its small chassis design and MOSFET power supply ensure install versatility, while protecting circuitry against thermal overload, shorts, and voltage spikes.

Built-In Features for Real-World Use:

• Compact and efficient SMT PCB design
• Independent gain controls for each channel pair
• Bridgeable channels for high-power 2-channel operation
• High/Low pass filters for tuning door, rear fill, or component setups
• 4-gauge power input terminals for stable current delivery

If you're searching for a 4-channel 1800 watt amplifier that balances clean signal, install flexibility, and long-term durability, the OD4-1800 stands out in its class. Ideal for users looking to drive 4 speakers or run a 2-channel 1800W setup, this amp brings heat without the bulk.

Compatible With:

• Factory speaker upgrades
• Component audio systems
• Mid-high SPL configurations
• Cars, trucks, SUVs, and custom installs requiring multi-channel full-range amplification