About SAMP-200:
TPA3255 is a high-performance Class D power amplifier that boasts Class D efficiency and delivers truly high-end sound quality. This device features advanced integrated feedback design and proprietary high-speed gate driver error correction function (PurePath Ultra HD). This technology enables devices to maintain ultra-low distortion throughout the entire frequency band while exhibiting perfect quality. This device operates in AD mode, with a maximum output of 600WX2/2R or 300WX2/4 ohms and a 200WX2/8 ohm load, and features a unique 2VRMS analog input connection, seamlessly connected to performance DACs such as TI's PCM5242. In addition to excellent audio performance, TPA3255 also has two major advantages: high power efficiency and ultra-low power level idle loss (less than 2.5W). This can be achieved through an 85m RMOSFET and an optimized gate driver scheme. This scheme can significantly reduce idle losses compared to traditional discrete implementation schemes.
Product Features:
1. Utilizing two original American TI-TPA3255 power amplifier modules, the output power separation is superior to that of a single module
2. The front-end differential input circuit adopts boost technology, providing a stronger dynamic range than the official single 12V circuit in terms of sound quality
3. Fully shielded, dense, low-loss sealed inductor, imported filter capacitor, no pressure to operate at 48V
Product indicators:
Output power: 600W+600W/2 ohms, 315W+315W/4 ohms, 200W+200W/8 ohms
Frequency response: 20Hz-30kHz
THD+N: 0.006% at 1W/4; <0.01% during clipping
Power supply voltage: positive 19V to positive 48V
PCB size: 138X128MM
Weight: 400g
Note: The higher the input power supply, the greater the power supply current, and the greater the output. The power test is conducted at 50V of the power supply. If replaced with a 24V or 36V low-voltage power supply, the output power will decrease accordingly
About SAMP-300 :
In 2025, the SAMP-300 energy-saving version was launched. SAMP-300 is an energy-saving version based on SAMP-200.Many times, users play music, but when they leave and there is no music output for a long time (such as using a Bluetooth audio source, the customer leaves with their phone, and there is no music. If this process lasts longer than 1 minute, the board enters standby mode, and the static power consumption is reduced from over 5W to 0.5W, a reduction of over 10 times. The heat dissipation temperature is equal to normal temperature, which is both energy-saving and can extend the lifespan of electronic components.
