Sell ♈▣Assembled LME49810 High fidelity DC Servo Mono Amplifier Board 300W best price

Note: Is the price of a board, no radiator, no transformer Product Details: Working status: Class A and B (can be adjusted to Class A as needed) Output power: 300W*(8Ω) Working voltage: recommended voltage drive stage ± 55V; current output stage ± 50V, current output stage voltage is always lower than voltage drive stage voltage about 5V Power mode: Dual power supply mode, voltage drive and current power output stage are separately powered, and can also be combined. PCB size: 215 x 93.5 mm, PCB thickness 2mm, PCB copper foil thickness 2OZ Product net weight: 300 g DC servo design is adopted, so that the midpoint output of the power amplifier board is less than 5MV. The drive adopts Toshiba original 2SA1930/2SC5171. The current output stage uses three pairs of Toshiba 2SA1943/2SC5200 power tubes, which have low output impedance and large power margin. Power tube pairing error is within 2%. There is a perfect midpoint voltage protection circuit, speaker delay protection circuit, and the main chip adopts UPC1237, which is stable and reliable. The voltage level/current stage power supply is designed separately to avoid the influence of the fluctuation of the power supply on the front stage when the current level is large and dynamic, so as to minimize the sound and dye. LME49810 Introduction: LME49810 with 300W mono power amplifier board NS's latest LME49810 driver IC is the core, can be used with a variety of output-level power tubes, LME49810 chip is a high-origin mono audio power amplifier driver, most suitable for Audiophile and professional audio system. The unique feature of the LME49810 chip is the built-in Baker clamp circuit, which ensures that the amplifier output will not saturate in the event of overdrive, because the high-level audio signal passes through "soft clipping" after any undesired audio. False signals are suppressed. The “soft clipping” feature is very useful because the old solid-state amplifiers are especially prone to audio artifacts due to strong clipping. LME49810 power amplifier board is mono design. Two power amplifier boards are required to form two channels. Each channel adopts one LME49810+ three pairs of power tubes (bipolar transistor and MOSFET pin compatible) design, left and right channel PCB symmetry structure. The PCB is made of 2mm thick quality sheet. The main parameters of LME49810 chip: Wide voltage range ±20V to ±100V Conversion rate 50V/μs Drive current 60mA (typ) Power supply ripple rejection ratio (f = DC) 110dB Total harmonic distortion + noise (f = 1kHz) 0.007 Package List: LME49810 amplifier board X1 Precautions: *** "Pre-sale" ***The products are shipped abroad, and the logistics time limit is generally about 15 days. If you mind, please don't place an order &&&Pre-sale products as long as they are shipped overseas, please do not refuse to sign at will, thank you very much for your understanding! Please pay attention to the store coupons and receive them before placing an