QSC RMX2450a 2-Channel Power Amplifier – 500W/ch at 8Ω, 800W/ch at 4Ω, 1200W/ch at 2Ω (RMX2450a)

QSC RMX2450a 2-Channel Power Amplifier

(Class AB Professional Power Amplifier – 500W/ch @ 8Ω, 800W/ch @ 4Ω, 1200W/ch @ 2Ω)

The QSC RMX2450a is a high-power, professional 2-channel rackmount amplifier designed for demanding live sound reinforcement, touring systems, DJs, and installed PA applications. As one of the most powerful models in the RMX series, it delivers strong, stable output with excellent headroom, making it ideal for driving full-range speakers and subwoofer systems in large venues.

Built with a Class AB design and high-current toroidal power supply, the RMX2450a ensures reliable performance under heavy load conditions, including low-impedance operation. It provides clean, consistent audio reproduction with low distortion, even at high output levels.

With up to 500W per channel at 8Ω, 800W per channel at 4Ω, and 1200W per channel at 2Ω, this amplifier is engineered for professional setups that require maximum power and durability without compromising sound quality.

Key Features

• 2-channel Class AB professional power amplifier
• 500W per channel @ 8Ω / 800W per channel @ 4Ω / 1200W per channel @ 2Ω
• 2400W bridged mono output @ 4Ω for high-power applications
• High-current toroidal transformer power supply for stable, low-noise performance
• Selectable low-frequency filters (30 Hz / 50 Hz) for speaker protection and improved headroom
• Independent user-defeatable clip limiters to reduce distortion and protect speakers
• Front-panel gain controls for quick level adjustment
• Signal and clip LED indicators per channel for real-time monitoring
• Balanced XLR, 1/4” TRS, and barrier strip inputs for flexible connectivity
• Speakon and binding post outputs for professional speaker wiring
• Front-to-rear forced-air cooling system for thermal stability
• 2RU rackmount steel chassis built for touring durability
• Ideal for large PA systems, live bands, DJs, and installed sound systems