Versatile compatibility The XR-A901 Tone Board Preamp is designed for seamless integration with a wide range of amplifier boards, enabling use in both private and professional audio systems. Enhanced audio control Access precise tonal shaping with dedicated adjustments for treble, bass, and overall volume to finely tune your output. Clear benefits Improves sound control and clarity, simplifies integration into existing builds, and lets you tailor the response to different speakers and listening environments. Model and function XR-A901 Tone Board Preamp provides preamplification with tone shaping to refine your audio signal before it reaches the power stage. Use scenarios - Home audio DIY: add to your amplifier project to dial in highs, lows, and volume for a personalized listening experience. - Studio reference monitoring: fine-tune the tonal balance for accurate playback with various monitors. - Small venue or live sound: adjust tone and level for a balanced, clear audience mix.