Description: 1. NE5532 preamp board, the board is 3 times magnification 2. Magnification from the R8, R10 decisions. 3. R8, R10 from 10K-100K resistor between the magnification of 1-10 times the resistance from the smaller, the greater the gain. Materials: 1. Import KOA foot blister resistance, ELAN capacitors. 5532 pairs of op amp, IC Block, with gold-plated, more high-enduser to upgrade the op amp. 2. Times the sub-regulator power supply by 7812/7912, the work of more stable 3. Can match our store blue LM3886 TDA7293/TDA7294 AMP board 4. Supply Voltage :12-18V Dual Power AC 5. Current: 0.3A 6. Board body size: 80 * 50 MM Package List: 1 * NE5532 Stereo Preamplifier Board
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