24 Transistor Power Amplifier Semi Ready Board 1650W Same as Picture
This power amplifier board has stable performance, reliable quality, and complete protection functions:
1. DC output protection
2. Delayed start
3. Short circuit protection
4. Overcurrent protection
5. Overtemperature protection
This power amplifier board is suitable for high-fidelity home use, stage use, and professional power amplifiers. It has full power and clear and beautiful sound quality! In order to achieve the most clear and pure sound, the input is processed by IC, and then a dual differential high-frequency transistor circuit is used as a preamplifier. Carry out the clear and delicate timbre of the transistor to the end, making the timbre 10% better! The push stage is driven by two stages. First, the original imported medium-power Toshiba pair tube 2C is used. A1837/2SC4793 to push a pair of TTC5200/TTA1943 and then use this pair of high-power tubes to push 11 pairs of TTC5200/TTA1943
Parallel output! This board uses real original mating tubes to ensure that it can withstand high voltage and current, so as to ensure good effects and shocking driving force to drive the speakers!
PCB
The circuit board is made of 1.6mm thick FR-4 high-grade double-sided panels. The resistors are made of metal film with a 1% error and high-precision resistors imported from Taiwan. The small capacitors are all original capacitors. The coupling uses high-grade capacitors. This board uses exquisite materials and was developed after repeated testing. And the results obtained. The circuit design is reasonable, the layout and wiring are neat and beautiful, and the noise ratio is zero! The sound quality is pure and sweet, and the details are outstanding. Taobao enthusiasts, please feel free to buy this one: a low volume can push the hard-to-push HiVi bass to its fullest! It will really make you burn!
This power amplifier board has low distortion, low noise, high withstand voltage, silent switching on and off, over-temperature protection, overload protection, output short-circuit protection, and carefully selected component materials. The circuit design is further improved. Extremely high noise-to-noise ratio, it’s hard to hear any noise even if you’re close to the speaker!
The power supply voltage range of this board is extremely wide, and it can work reliably between DC dual 50V-110V (the recommended working voltage of the bare board is the middle value DC dual 55V. As for the power of the power transformer, of course, the bigger the better). This is particularly important when listening to large dynamic music. It will allow you to truly experience what it is like to be shaken by the earth.
Operating voltage: DC plus or minus 50-110V, the protection circuit requires a separate power supply (DC 15-25V, or AC 12-18V). In order to pursue high dynamics and power, it is recommended to use DC plus or minus 90V (AC dual 70). The power supply power must be above 1000W.
Technical parameters:
Output power 80: 1650W,
4Ω: 2500W(Watt depends on Transistor Quality & Input Voltage and Gain)
Frequency response: +0dB/-0.8dB (20Hz~26KHz)
Total harmonic distortion: <0.3% 80 20Hz~26KHz
Signal-to-noise ratio: (20Hz-25KHz): A-weighted, full power output >98dB
size:
Amplifier board 300mm long x 84mm wide 92mm high
