Monitor Audio IWA-250 | Installation Amplifier

The Monitor Audio IWA‑250 is a purpose‑built active amplifier designed to power in‑wall or hidden sub‑woofers with precision, strength and flexibility. With up to 250 W output into 4 Ω, it provides ample headroom for deep, controlled bass — whether driving a single sub or two in‑wall subs for larger rooms or full‑range home‑cinema installations. Its Class‑D output stage and switch‑mode power supply ensure high efficiency, cool running and discreet operation even in rack‑mounted or enclosed spaces.

What sets the IWA‑250 apart is its built‑in digital signal processing (DSP), offering selectable EQ modes (Music, Movie, Impact), adjustable low‑pass crossover (40 – 120 Hz), phase control (0°/180°) and automatic signal sensing for seamless on/off operation. Inputs are flexible: LFE/line‑in via stereo RCA or balanced connections, and a 12 V trigger input for integration with AV systems. The compact 1U rack‑mount chassis is easy to integrate into media cabinets or AV racks, and standby power draw is under 0.5 W, making it energy‑efficient and compliant with ErP regulations.

For anyone building a home‑cinema system seeking powerful, reliable bass without bulky sub‑cabinets, the IWA‑250 delivers a refined, high‑performance solution that keeps installations neat and sound powerful.

• 250 W RMS output into 4 Ω — powerful enough to drive one or two in‑wall subwoofers
• Class D amplifier with switch‑mode power supply — efficient, cool running, and compact
• Built-in DSP with selectable EQ modes (Music / Movie / Impact) and advanced limiters for controlled bass
• Adjustable low‑pass crossover (40–120 Hz) and phase control (0° / 180°) — fine‑tune bass response to room and sub placement
• Flexible inputs: LFE/line‑in (stereo RCA or balanced), 12 V trigger input for integration with AV systems
• Automatic signal sensing — enters standby when no signal detected, saving power and extending lifespan
• 1U rack‑mount form factor (43.7  ×  432  ×  263 mm), 4 kg weight — easy integration into AV racks or cupboards
• Energy‑efficient performance (< 0.5 W standby) — compliant with energy‑saving standards