Energy transformer voltage vary: twin AC 12-22V, when connecting the facility provide, please rigorously affirm and join it appropriately, in any other case the chip could also be burned out.
Don’t use a single energy provide, reminiscent of a battery. The larger the enter energy, the extra energy the amplifier will output. When excessive energy output, please take note of the warmth dissipation of the chip!
Altering the dimensions of R13 can change the output energy. The smaller R13 is, the smaller the output energy is, and vice versa.
The larger the enter energy, the warmer the chip is, exceeding 80 levels Celsius, please change the bigger warmth sink.
Working voltage: DUAL 12-22V AC, 50-120W ring cow transformer is really useful.
Output energy: 60-100W;
Speaker impedance: 4-8 ohms, 6-8 inches, 50-150w;
Minimize-off frequency: 50-200hz;
Sign to noise ratio:> 80db;
Distortion: <1%;
Working temperature: <80, if the temperature is just too excessive, please strengthen warmth dissipation;
MOUDLE SIZE: 114 * 93 * 43; PCB SIZE: 114 * 70MM;
Mass: 250g;
The high-power floor inflexible bubble energy amplifier board is completed. The circuit makes use of the brand new unique TDA7294 for energy amplification. The utmost output energy can attain 100W. The low-pass circuit makes use of a twin op amp NE5532. The PCB format is affordable, no noise, and cost-effective.
This energy amplifier board circuit works stably, has robust anti-interference, greater signal-to-noise ratio, and a better sense of listening to: the bass is robust, full, freely retractable, robust, robust, with deep dive, very HI.
With UPC1237 speaker safety circuit, with radiator, it really works instantly when linked to the facility provide, DIY could be very handy!
You’ll be able to regulate the output frequency of the bass in keeping with your private preferences. So long as you alter the dimensions of C20 within the circuit, you’ll be able to change the output frequency. The capacitance is chosen from the vary of 103, 223, 323, 473, 683, 104, and 224. Which one you select requires full-frequency output, simply take away C20.
In the event you want a decrease frequency, you’ll be able to change the C19 from the unique 224 to 474, and the R14 and R15 from the unique 10K to 22K or greater, so long as your woofer has a large frequency response vary, in any other case the speaker frequency Loud sound will seem to various levels! Briefly, adjusting C19, C20 or R14, R15 can change the cut-off frequency. Please regulate it in keeping with private choice. We have now adjusted the overall frequency vary 50-150Hz after we depart the manufacturing facility.
