A62T-XH-A901 Sound Card Preamplifier with Treble, Bass, and Volume Adjustments, Compatible with Amplifier Boards A62T-XH-A901 Sound Card Preamplifier with Treble, Bass, and Volume Adjustments, Compatible with Amplifier Boards Enhanced Sound Control: The XR-A901 sound card preamplifier offers superior sound control, equipped with dedicated treble, bass, and volume adjustment knobs for fine-tuning your sound output. Wide Compatibility: Designed for seamless integration with a wide range of amplifier boards, enhancing home and professional audio systems. High-Quality Components: Manufactured with high-quality materials to ensure reliability and durability, guaranteeing clear sound reproduction. Product Name: Preamplifier Mixer Product Model: XR-A901 Power Supply Voltage: DC12V-24V Number of Channels: Dual Channel Due to different batches, the product appearance and printed text may vary, but this does not affect its use. Color: Blue Material: PCB Package Contents: 1 x Preamplifier Mixer 2 x Connecting Cables This package only includes the above contents; other products are not included. Note: Light reflection and different monitors may cause the color of the product in the picture to be slightly different from the actual product. The measurement tolerance is +/- 1-3 cm.