4-channel multi-zone power amplifier with DSP.
4 x 125 W at 4/8 ohms | 2 x 250 W bridged (BTL)
Efficient Class D with web-configurable DSP
Power Sharing: flexible power output based on load
Compatible with 70/100 V speakers
SNR >106 dB | THD <0.05% | Standby <0.5 W
Compact 1U form factor, ideal for racks
Perfect for multirooms, home theaters, and high-demand areas.
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Monitor Audio IA125-4: 4-Channel Multiroom Power Amplifier with DSP and Power Sharing
The Monitor Audio IA125-4 is a high-performance, ultra-compact multiroom power amplifier designed for distributed audio and home cinema applications. With a 1U rack-mountable chassis, this versatile amplifier delivers 125 W per channel (4 channels) or 250 W per channel in bridged mode (2 channels), making it ideal for stereo zones or high-demand speakers like the THX Ultra-certified Cinergy 100.
Equipped with a configurable DSP via web interface, the IA125-4 offers precise tuning for any project—whether it's powering two stereo zones, Dolby Atmos height channels, or outdoor speakers. Its Power Sharing technology intelligently redistributes power across channels to optimize performance in complex installations.
Key Features
4 x 125 W at 4/8Ω | 2 x 250 W bridged (BTL)
Class D high-efficiency amplification with <0.05% THD
Web-based DSP configuration for advanced system tuning
Compatible with 70/100 V speaker lines via power sharing
Signal-to-noise ratio >106 dB for audiophile-grade clarity
<0.5 W standby power consumption – eco-friendly and efficient
1U rack format, perfect for space-conscious installations
Ideal For:
Residential and commercial multiroom systems
High-power stereo zone amplification
Home theater height channels (Dolby Atmos, DTS:X)
Custom AV installations requiring compact yet powerful solutions
The Monitor Audio IA125-4 is the ultimate compact power amp for installers who need maximum flexibility, efficiency, and performance in a small footprint—ideal for delivering premium sound across complex, custom-designed spaces.