Pure Resonance Audio LA21000 2-Channel Stereo Power Amplifier

Refined & Compact Power Amplifier

The Pure Resonance Audio LA21000 low-impedance amplifier, with a robust 1U 19-inch cabinet design, is exceptionally compact, lightweight, and durable. The space-saving construction allows for easy integration into a diverse array of rack-mounted configurations without compromising on power or performance. The LA21000 offers twice the power within the same size and weight as our previous amplifier models, delivering maximum output power while simultaneously protecting the equipment. This stereo power amplifier provides dynamic, clear sound reproduction and consistent operation.

High-Efficiency Class D Amplification

At the heart of this 2-channel rack mount amplifier lies cutting-edge Class D low-impedance amplification with ultra-efficient technology, delivering a powerful audio experience. The LA21000 has three mode options: mono, stereo, or bridge, with an impressive power output ranging from 700W(8Ω)/1000W(4Ω) per channel in stereo mode to 1400W(16Ω)/2000W(8Ω) bridged. This audio power amplifier boasts 95% ultra-high efficiency and low distortion to maximize power output while minimizing energy consumption. Standard XLR inputs and SpeakON NL4 outputs, as well as XLR LINK outputs to link to additional amplifiers for added power, provide flexibility for a wide variety of live and installed environments.

Intelligent Cooling & Advanced Protection

The LA21000 comes equipped with intelligent features that go beyond amplification, providing powerful functionality, reliability, and durability for optimal performance. The switched-mode power supply reduces weight, enhances efficiency, and effectively suppresses distortion, ensuring stable and reliable operation. Incorporating soft starter technology prevents current spikes during startup or interference with other electrical equipment. Additionally, forced cooling technology with low fan noise and high heat dissipation efficiency keeps the rack mount power amplifier running smoothly even during prolonged use. The LA21000 also includes advanced protection circuitry, such as over-voltage, under-voltage, over-current, output short circuit, overheat, and DC protection, providing a comprehensive safety net for your audio system.

• Highly Efficient - Class D low-impedance digital amplification with switched mode power supply technology for 95% ultra-high efficiency with low distortion
• Flexible Connections - Designed with standard XLR inputs and XLR LINK outputs, as well as locking SpeakON NL4 outputs
• Powerful - 2 Channels support mono, stereo, or bridge modes, providing 2x700W at 8 ohms and 2x1000W at 4 ohms in stereo mode or 1400W at 16 ohms and 2000W at 8 ohms bridged
• Compact Design - Compact, lightweight, yet durable space-saving construction in a 1U 19-inch industrial-grade chassis
• Works Long Hours - Smart forced cooling fans with low fan noise and effective high heat dissipation ensure reliable operation even with use over extended periods
• Extensive Protection - Soft starter and smart peak clipper, DC, overload, short circuit, overheat protection, and power, protection, peak, and signal indicators ensure the unit operates safely

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