Versatile Compatibility Designed to integrate seamlessly with various amplifier boards, enabling flexible use in both home and professional audio systems. This reduces compatibility concerns and simplifies upgrades. Enhanced Audio Control The XRA901 Tone Board Preamp provides dedicated adjustments for treble and volume to finetune your audio output, delivering clearer frequency detail and balanced loudness across listening levels. Key Benefits Broad compatibility with multiple amplifier boards for versatile applications Precise tone shaping with dedicated treble and volume controls Improves frequency clarity and overall listening balance Supports both home audio and professional or DIY projects Practical Use Scenarios Home stereo upgrade: Pair with an existing amplifier to refine treble response and adjust overall volume for music, movies, or streaming. DIY audio projects: Incorporate into a custom amplifier design to achieve tailored end response and precise level control. Small venue or studio monitoring: Integrate into monitoring or compact PA chains to achieve clearer, balanced highs and controlled loudness.