The OSD Nero XSP2.1 is a versatile 2.1-channel amplifier that combines powerful stereo performance with a dedicated subwoofer output, making it the perfect solution for both indoor and outdoor audio systems. This compact Class D amp delivers up to 2 x 100W RMS to stereo speakers and 200W RMS to a passive subwoofer at 4 ohms, offering clear highs and deep, impactful bass. Designed for flexibility, it supports 4-ohm and 8-ohm configurations and includes independent bass, treble, crossover, phase, and subwoofer gain controls to fine-tune your sound to any environment. With a frequency response of 20Hz–200kHz for stereo and 20Hz–200Hz for the subwoofer, along with a 90dB signal-to-noise ratio, it ensures detailed and immersive audio playback. RCA inputs, 12V trigger in/out, and auto-sensing capabilities make it easy to integrate into existing systems or automate for smart power control. Ideal for home theaters, outdoor entertainment zones, or upgrading legacy systems, the Nero XSP2.1 is simple to install and highly user-friendly. Just connect your source using RCA cables, wire up your speakers and subwoofer, and use the onboard controls to customize your sound. Whether you're enhancing your TV setup, creating a backyard audio system, or building a high-performance stereo zone, this combo amplifier offers clean power, installation flexibility, and seamless control in a space-saving design. Its energy-efficient build, low heat output, and sleek form factor make it a smart choice for audio enthusiasts who demand performance without complexity.