Monitor Audio IWA-250 Power Amplifier

Monitor Audio IWA-250 subwoofer amplifier

The Monitor Audio IWA-250 is a purpose-built active subwoofer amplifier engineered to provide powerful and precise low-frequency performance for architectural audio installations. Designed specifically to drive Monitor Audio’s IWS-10 passive in-wall subwoofers, the IWA-250 combines high output capability, advanced digital signal processing, and flexible connectivity in a compact 1U rack-mount chassis.

Utilizing a highly efficient Class D amplifier topology and switch mode power supply, the IWA-250 delivers up to 250 watts into a 4-ohm load while maintaining low thermal output and efficient operation. The amplifier can power either a single IWS-10 or dual IWS-10 subwoofers, making it suitable for both standard listening rooms and larger home cinema environments that require increased bass output and wider low-frequency coverage.

Advanced DSP processing ensures accurate bass reproduction while protecting connected drivers through intelligent limiting and control algorithms. Multiple equalization presets, including Music, Movie, and Impact modes, allow system tuning to suit different listening preferences and application requirements. Adjustable crossover controls and phase settings further optimize system integration with satellite speakers and home theatre systems.

Connectivity options include balanced and unbalanced LFE inputs, stereo RCA inputs, 12V trigger support, and speaker-level outputs, allowing seamless integration with AV receivers, processors, integrated amplifiers, and custom control systems. Auto-sensing circuitry enables automatic power activation when an input signal is detected, simplifying day-to-day operation.

Housed in a robust steel enclosure, the IWA-250 is designed for professional rack installation and long-term reliability. Combining high-efficiency amplification, intelligent DSP management, and installation flexibility, the Monitor Audio IWA-250 provides the ideal amplification solution for architectural subwoofer systems requiring powerful, controlled, and consistent bass performance.

Features of IWA-250

• Dedicated subwoofer amplifier design
• Optimized for IWS-10 subwoofers
• Delivers up to 250 W output power
• High-efficiency Class D amplification
• Switch mode power supply design
• Advanced DSP-controlled processing
• Intelligent limiter protection system
• Music, Movie, and Impact EQ modes
• Variable low-pass crossover control
• Adjustable phase selection
• Supports single or dual IWS-10 units
• Balanced LFE input connectivity
• Unbalanced RCA input connectivity
• Stereo RCA input support
• 12V trigger integration
• Auto signal sensing power-on
• Low standby power consumption
• Thermal and over-current protection
• Rack-mountable 1U chassis
• Heavy-duty steel construction

Specifications of IWA-250