Tube Amplifier Speaker Protection Audio Amp Board Preamp Tool Current Adjustment

Description

Tube Amplifier Speaker Protection Audio Amp Board Preamp Tool Current Adjustment
Description:
Brand Name: Aiyima
Features:
1. The power supply uses four Schottky rectifiers + 2 10000UF50V capacitor filters. The output protection is composed of imported Omron relays and C1237. The switch has no impact and the sound quality is pure.
2. Power used 2 pairs of original imported ON Semiconductor power pair 15024 15025 original pairing
3. The preamp uses 2604 op-amp, round tone, rich details, beautiful tone
It has been debugged in Class AB, and the board has static current adjustment, which may be easily adjusted to small A (adjustment should pay attention to increase the heat sink, otherwise it will overheat and burn out)
The power amplifier board does not have a heat sink, only a heat conduction bridge, and it must be added with a heat sink before it can be powered on for the sound test. The heat sink is generally more than 0.8KG
Note: There is no circuit diagram for the power amplifier board, only a simple wiring diagram.
Product name: J1 Gold Seal Fever Amplifier Board
Output power: 80W+80W
Impedance: input 100K
Output: 4-8 Ohm
Input voltage: AC dual 22-34V three-wire (recommended to use a transformer of 150W or more)
Size: 178*112*45MM
Package Include:
1 x  Tube Amplifier Board