General description Especially suitable for watching movies, the 2X XH-A901 NE5532 Tone Board Preamp enhances the 3D effect, providing an immersive audio experience. It is lightweight and portable, making it easy to take outdoors. This preamp serves as the best replacement for your old, broken unit, featuring exquisite components of high quality from leading manufacturers. Technical specifications Product model: XH-A901 Input voltage: DC12-24V Number of channels: two channels Chip: Two NE5532 Color: blue Material: metal Size: 96 x 39 x 20 mm Installation aperture: 3 mm Installation hole distance: 89.3 x 32.3 mm Package Contents 2 x XH-A901 NE5532 Tone Board 2 x 3P audio cable Other information Note: Light reflection and different displays may cause the color of the item to differ slightly from the real thing. The measurement allowed error is +/- 1-3 cm.