IN PHASE IPA9801D – 1,200W RMS 1Ω MONO CLASS D SUBWOOFER AMPLIFIER

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.

Serious subwoofer power for serious installations.

The In Phase IPA9801D steps up the performance with an impressive 1,200W RMS at 1Ω, making it an ideal choice for high-output subwoofer installations where genuine power delivery matters.

Designed around efficient Class D technology, the amplifier combines a high-efficiency PWM power supply with a multi-stranded power toroid and full 1Ω stability.

Installers have complete control over the subwoofer setup with a 40Hz–250Hz variable low-pass filter, 10Hz–50Hz subsonic filter, 0–12dB bass adjustment and 0–180° phase shift.