Product description:
1: Using the classic circuit structure, the front-end uses an op-amp circuit to amplify, and pushes the rear-stage push tube to output the power stage. The circuit is mature, stable and reliable. Using op-amps for front-end amplification has high consistency and stable performance, saving a lot of pairings. The trouble is, and it is designed with an op-amp seat, you can replace the op-amp with different timbres by yourself, and the playability is high.
2: 4 high-speed Schottky diodes + 50V10000UF NOVER gold word AUDIO capacitors are used for power rectification and filtering, and C1237 + imported Omron relays are used for the protection circuit. The switch has no impact and the sound quality is pure .
3: The board has been debugged for class A and B delivery when it is shipped. The board has static current adjustment, which may be easily adjusted to a small A (adjustment should pay attention to increase the heat sink, otherwise it will overheat and burn out) .
4: The power amplifier board is shipped without a heat sink, only with a heat conduction bridge. You must add a heat sink before you can power on and test the sound. The heat sink generally needs to be more than 0.8KG.
5: 2604 op amps are used in the pre-stage, with mellow tone, rich details and beautiful tone .
6: The power stage uses 2 pairs of original imported ON power pair tubes 15024 15025 original pairing, good quality.
Parameter:
Output power 100W+100W
Impedance: Input 100K Output: 4-8 ohms
Input voltage: AC dual 22-34V three-wire
It is recommended to use an AC transformer of more than 150W
Size:112*178*45mm
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