Feature: 1. [HIGH ACCURACY] The high accuracy and sensitivity of the low frequency power amplifier module make the operation more precise and safe. 2. [HEAT SINK SHEET] When the input and output voltage is too high or the module is damaged, a lot of heat will be generated. However, the module is equipped with a heat sink to keep the performance stable. 3. [EXCELLENT MATERIAL] Made of excellent components, the product performance is stable and reliable, and the service life is long. 4. [WIDE APPLICATION] This amplifier module is mainly used in small signal amplification, audio signal amplification, motor drive and so on. 5. [COMPACT SIZE] The power amplifier module is compact, does not take up space for installation, with strong practicality. Specification: Item Type: Low Frequency Power Amplifier Module Material: PCB Module Model: OPA541 Input Signal Form: Single ended Input Voltage Range: 2VPP (less than supply voltage) Module Input Impedance: 10K ohms Operating Frequency: 20HZ-100KHZ Module Supply Voltage: ±10V~40V Module Supply Current: 5A Input Voltage Range: 68VPP when the supply voltage is ±40V Input Current: 5A Input Power: 50W (MAXIMUM) Module Gain: 3.3x-82x, first stage amplification adjustable up to 25x, second stage amplification is 3.3x Module Specifications: Approx. 82 x 47 x 42mm / 3.2 x 1.9 x 1.7in Module Heat: Input and output voltage is too large or the module is damaged, it will generate a lot of heat, equipped with heat sink Module Operating Temperature: -40℃~75℃ Module Features: Positive and negative power LED indication Application Scope: Small signal amplification, audio signal amplification, motor drive, etc. Module Interface Type: 5.08 blue power card holder, SMA signal input and output.. Package List: 1 x Low Frequency Power Amplifier Module