Experience the immersive deep bass with the Bass Preamp Board. This pre-assembled board is designed to enhance your low-frequency performance. With its wide voltage input range, it can be easily integrated into various power supply setups. Features -Color:Green -Material:FR-4 fiberglass board, copper -Size:8.00X5.00X2.00cm/3.14X1.97X0.79in -Power supply voltage: 10-24V Single power supply -Frequency range: 22Hz-300Hz -Audio input: mono or -Audio Output: mono audio -Distance between the center of the plate fixing holes: 70x24mm -Hole diameter: 3.2mm -Potentiometer shaft center spacing: 32.5mm -Note: The accessory is in random color. -Enjoy a heightened audio experience with the powerful low-frequency effects provided by this pre-assembled front-end board for a single power supply of 10-24v. -This versatile board is compatible with various power supply sources, making it easy to integrate into your audio setup -Convenient installation is ensured with the pre-assembled design of this board, saving you -Experience clear low bass sound with the integrated low-pass filter board, ensuring that only the desired frequencies are amplified -The non-amplifier board design of this product not only saves effort but also prolongs its lifespan, making it a reliable addition to your audio setup Package list: 1 amplifier