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In Phase IPA9804D 920W RMS 4 Channel Class D Amplifier 2Ω Stable Amplifier

In Phase IPA9804D 920W RMS 4 Channel Class D Amplifier 2Ω Stable Amplifier

IPA9804D
Sale price  £199.99 Regular price  £249.99
Save £50.00

In Phase IPA9804D 4-channel 920w RMS CLASS D Mono Power 2Ω Stable Subwoofer Amplifier

NEW 2027 MODEL

Power. Efficiency. Control. Built for the modern installer.

The all-new In Phase Class D amplifier range has been engineered to give installers a serious combination of power output, compact installation, efficiency and professional-grade features.

From the compact IPA602D through to the 1,500W RMS IPA3100D, the range covers the most popular installation requirements with dedicated 2-channel, 4-channel and high-output mono subwoofer amplifiers.

Every model benefits from Class D technology, high-efficiency PWM power supplies, multi-stranded power toroids, gold-plated terminals and comprehensive protection circuitry. The result is a range that is easy to specify, easy to install and gives your customers a compelling upgrade path.

A complete amplifier range from one trusted brand.

  • Models covering the key installation categories
  • Up to 1,500W RMS @ 1Ω
  • Compact chassis designed for modern installations
  • Class D efficiency across the range
  • 1Ω / 2Ω stable options depending on model
  • Extensive crossover and bass control
  • Low- and high-level input options on multi-channel models
  • Gold-plated connections
  • Thermal, overload and short-circuit protection
  • Strong specification at an installer-friendly price point


Whether you're upgrading factory audio, powering a full speaker system or building a serious subwoofer setup, there is an In Phase amplifier for the job.

High-output four-channel performance without the bulk.

The In Phase IPA9804D is built for installers who need serious four-channel power in a compact, efficient amplifier.

With 230W RMS × 4 at 2Ω and 460W RMS × 2 bridged at 4Ω, the IPA9804D gives you the power and flexibility to build high-performance speaker systems while keeping installation space to a minimum.

The combination of Class D technology, high-efficiency PWM power supply and professional-grade gold-plated connections makes this a compelling choice for both upgrades and complete audio builds.

Product Specification:

  • 230W RMS × 4 @ 2Ω
  • 150W RMS × 4 @ 4Ω
  • 460W RMS × 2 bridged @ 4Ω
  • Class D technology
  • High-efficiency PWM power supply
  • Multi-stranded power toroid
  • Fully 2Ω stable operation
  • Variable 12dB low-pass/high-pass crossover
  • Low-pass filter: 50Hz–150Hz
  • High-pass filter: 50Hz–1.1kHz
  • Bass level: 0–12dB @ 45Hz
  • Gold-plated RCA, power & speaker terminals
  • Soft start & muting
  • Overload, thermal & short-circuit protection
  • Power & protection indicator
  • Low & high-level inputs

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