Product Name: G3hm Tpa3251 Pure Path Ultra HD Analog Input Class D Amplifier Model NO.: G3HM Conductive Mode: D Voltage: 100VAC~ 265VAC 50Hz or 60Hz Sound Channel: 2.0 Tube Type: IC Amplifier Used For: Professional Usage: Hi-Fi Type: Mini Amplifier Power out: 140-W Stereo Into 4 ? in Btl Configuration Frequency Response: Thd+N ?0.05% / 20-20kHz / <1dB/1W Input Sensitivity: 0dbv(1vrms/Bal Input) Thd+N: 0.005%@1W Dynamic Range: 110dB(AES-17/a-Weight) Idle Losses: 3-5W Power Supply: 100VAC~ 265VAC 50Hz or 60Hz Dimensions: 250mm(L)*65(W)*45mm(H) Net Weight: 0.8kg Transport Package: Carton Origin: China Product Description Tpa3251 Pure Path Ultra HD Analog Input Class D AmplifierThe SINEWAVE G3H is fully integrated, intelligent audio power conversion solution designed particularly for highly competitive consumer and professional audio products.IT IS HI-FI DESIGN WITH PurePath Ultra-HD CLASS DAMPTPA3251 is ahigh performance class-D power amplifier that enables true premium sound quality with class-D efficiency. It features an advanced integrated feedback design and proprietary high-speed gate driver error correction.This technology allows ultralow distortion across the audio band and superior audio quality.The device can drive up to 2x 175 Winto 4Ω load and 2x 220 Winto 3Ω load and features and 2Vrms analog input interface that works seamlessly with high performance DACs such as TIPCM5242. In addition to excellent audio performance, TPA3251 achieves both high power efficiency and very low power stage idle losses below 1W. This is achieved through the use of 60mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations. SMPS unit and class Dstage have perfect protection each, so the constant running performance well. class Dstage have additional DCP/OCP protection, works stable at some worse conditions, input signal have hardware dynamic limiter and support balance signal input, very better S/ Nperformance.The SINEWAVE G3H module is EMC and safety approved and the "black-box" completeness allows for fast designing and minimized time to market.Fixed BTL setting, user can not change working mode, due to better protection under BTL mode than SE mode and PBTL mode. Key BenefitsVERY QUIET BACKGROUND, VERY HIGH SOUND LEVEL.A wide set of features for plug and play implementation into Hi-Fi applications.Black-box design, module have good heat dissipation and better EMC performance.Advanced protected function against short circuits, overload and overheating and includes on-board fuses and EMI filtering that provide aCE and FCC pre-approved design.Wide AC power supply, 100Vac~265Vac 50Hz or 60HzKey Features•Advanced Integrated Feedback Design with Highspeed Gate Driver Error Correction(PurePath™ Ultra-HD)- Signal Bandwidth up to 100 kHz for High Frequency Content From HD Sources- Ultra Low 0.005% THD+N at 1W into 4Ω and <0.01% THD+N to Clipping- 60 dB PSRR (BTL, No Input Signal)- <60 μV (A-Weighted) Output Noise- >111 dB (A Weighted) SNR• Click and Pop Free Startup and Stop• Self-Protection Design (Including Undervoltage, Overtemperature, Clipping, and Short Circuit Protection) With Error Reporting• EMI Compliant When Used With Recommended System Design