Power Acoustik OD4-1800 Overdrive Series 1800 Watts Max Power 4-Channel Class A/B Full Range Car Amplifier

Power Acoustik OD4-1800

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.

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.

Features:

• 2-Ohm Stereo & 4-Ohm Bridged Full-Range Operation
• Military Grade PCB w/PWM MOSFET Power Supply
• Direct Short, Thermal, & Overload Circuit Protection
• High/Speaker Level & Low Level/RCA Input
• 4g Power Wire & 8g Speaker Wire Outputs
• Variable 12dB High & Low Pass Crossovers
• 12dB Bass Boost Increases Low Octave Harmonics
• 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

Specifications:

• Power Rating :
  • Max Power : 1800 Watts
  • RMS Power (@ 2Ω) : 225 Watt x 4 Channel
  • RMS Power (@ 4Ω) : 140 Watt x 4 Channel
  • RMS Power Bridged (4Ω) : 450 Watt x 2 Channel
• THD : <0.3%
• Bass Boost : 12dB
• Input Sensitivity : 200mV - 8.0V
• Frequency Response : 20Hz - 20KHz
• Signal-to-Noise Ratio : ≥100dB
• Crossover (-12dB/Oct)
  • Variable High-Pass : 120Hz - 3KHz
  • Variable Low-Pass : 50Hz - 250Hz
  • Variable Sub-Sonic : N/A
• Speaker Impedance : 2Ω - 8Ω
• Fuse Rating : 25A x 2
• Dimensions (L x W x H) : 14.0″ x 7.25″ x 2.3″ (355.6 x 184.15 x 58.42)mm