Condition: 100% Brand New Item Type: Power Amplifier Board Model: TDA7492 Material: ABS + Chip Color: As Pictures Shown Highest Frequency Response: 20K Quantity: 1PCS With 4 sets of gain adjustment Weight: Approx. 71g Package Size: Approx. 8x7x3cm/3.15x2.76x1.18inch1Precise cuts and interfaces ensure perfect serviceability, suitable for installation locations, easy installation. 2Made of high quality materials, which can effectively avoid corrosion and wear, sturdy and durable. 3Professional chip sets provide superior performance in the system. 4Easy to operate, anti-aging design, prolong service life. 5With super output short circuit and over-temperature overload protection, and prevent switching machine impact. 6Super small size can used for maintenance, polishing the active speaker, improve the sound quality, can also used to combine multiple blocks into a multi-channel amplifier or 2.1 amplifier.Note: 1. When the speaker impedance is 4 Ohms, the operating voltage must be less than 18V 2. When the speaker impedance is 6 Ohms, the operating voltage cannot exceed 24V 3. When the speaker impedance is 8 Ohms, the operating voltage cannot exceed 26V 4. Do not reverse the polarity of the power supply1 xHigh Power Digital Power Amplifier Board