HIFI 650W Home Stage Amplifier Board High Power /Mono Amp Board Amplifier Board

HIFI 650W Home Stage Amplifier Board High Power /Mono Amp Board Amplifier Board

Description:
ON Semiconductor's power amplifiers have always been highly appreciated and respected. Each channel used 7 pairs of Anson NJW0281/NJW0302 high-power tubes, and the entire panel used a total of 14 high-power tubes. This pair of high-power pairs of tubes is a 150W/15A high-power tube that ON Semiconductor developed specifically for high-fidelity audio power amplifiers. Power and output current are very abundant. According to actual tests, it is confirmed that the gain linearity is the highest in the current class of similar pipes. From the test data provided by the manufacturer, there is also reason to believe that its sound quality is very good. And the pairing performance of the tubes is very good and the consistency is very good! It is easy to match a large number of factory pipelines with good linearity and high gain, which can make the output signal have a higher amplification ratio. Commonly used Toshiba 2SC5200/2SC1943, Toshiba 2SC5198/2SA1941, and the United States cents FJL4315/FJL4215 and other high power tube strict audition and comparison, the author believes that the United States NJW0281/NJW0203 sound quality is the best, fine sound quality, sound density The sense is quite precise: the sound is very dense and the graininess is extremely delicate, and the sound is very heavy. The music is quite full of gas, the frequency response is very wide, the high frequency extension is also very high, the details and the sound of the church is very rich. The sense of low frequency and intensity are also very good, there is a majestic momentum! Ideal for use in home theater amplifiers where output power is strong, sound lines are clear, intensity is high, and shock is extreme. At present, Tianyi's full line of power amplifiers almost all use this kind of pipe, and the sound effect is very good!

Features:
- Using the original ON Semiconductor NJW0281/NJW0302 and 2SA1837/2SC4793
- Inter-stage coupling capacitor adopts 10UF capacitance for natural sound, broad sound field
- The resistor uses a five-ring metal resistor, and the main loop uses a five-ring metal film resistor with an accuracy of ±1% to ensure a good signal-to-noise ratio.
- The PCB adopts 1.6mm thick double-sided plate, 2.0oz thick copper, and spray tin process to ensure good current performance. First-class PCB quality.
- The layout of the entire circuit board layout is quite rigorous and reasonable. The overall PCB layout uses a point grounding method. The power amplifier board is stable and reliable, and has a large output power; the sound is mellow and the sound field is open. Strong sense of three-dimensional, low-frequency solid and powerful, signal-to-noise ratio is very good, wide dynamic range; clear details, excellent transient response, playing all kinds of music to cope with, in the family's playback environment has a very good performance.
- The price is the price of one board (including radiator) (one board for one channel, if you need two channels, you need to buy two units)

Parameters:
- Power supply: DC+-(35V-55V) recommended +-50V
- Power: 650W (THD+N<0.1% total harmonic distortion), DC+-50V, 4Ω
- Speaker Impedance: 4-8Ω
- PCB Size: 350 x 85mm
- Size: 350 x 87 x 88mm (with radiator)
- G.W.: 1.35 kg

Package Included:
- 1 x Stage Amplifier Board