Note :This board is 2.0 channel . And this is a kits .You need to weld by yourself
the kits do not included Radiator of Heat sink
you can click on the picture to buy it.
GG version is the full name gaincard. It is a very good sound lm1875 circuit that has been repeatedly verified and optimized in foreign countries. It has wide frequency band, delicate, hearing-resistant, mid point and stability. If you haven&39;t played lm1875, you can buy it. If you have bought lm1875, you can buy it for upgrading.
The principle is that the voltage of the two input terminals of the inverse amplification circuit is always 0, which does not change with the input signal. The input voltage of the transistor (FET) at the input terminal of the amplifier is constant, and the bias state is always kept at a proper working point.
Decades of classic, why do we play lm1875 power amplifier circuit?
Power range: ac15V-ac22V*2 recommended AC18V*2
Output power: 45w-8w, 60W, 4W (5W under pure class a)
Impedance range: 1-8 ohms
Frequency response: 10hz-40khz
Product highlights:
The CG circuit structure of good sound is adopted, the sound is very delicate and hard to hear, the middle point is stable, 4 parallel and X2 small class a output
*40000 UF large capacity filter, excellent low frequency diving
*Double sided gold-plated military PCB, good conductivity, not easy to oxidize
*Red five oxygen copper inductor is added to the output to eliminate the interference clutter, and the sound quality is more pure and natural
*Omron of Japan protects the circuit, which is more reliable
*Full advanced component configuration
PCB size : 185MM*98MM
Packing list:
A lm1875 amp kits * 1pc
Matching transformer link: