Product Details:
The input buffer adopts a diamond shaped amplification circuit, which has excellent phase and frequency characteristics
The voltage level uses I/V mirror current amplification, and the BC pin of the transistor has no phase-shifting capacitor, greatly improving the sound quality
The terminal adopts current feedback, effectively improving the stiffness of the bass
Use DC servo circuit to control the output DC midpoint to be within 4MV.
The amplifier board adopts a double-sided PCB design, with 1% precision Japanese metal film resistors and Japanese electrolytic capacitors.
The protection circuit adopts UPC1237 speaker specific protection chip
Specifications:
Output power: 300W (6 Ω)
Working voltage: ± 48V, AC 12V (for horn protection)
Job type: Class AB, also capable of working Class A
Magnification factor: about 26 times
Input impedance: 22K Output impedance: 4-8 Ω
PCB size: 199 x 93.5 millimeters; board thickness: 2mm, copper thickness: 2 Anshi
Package list:
1 × MA-9S2 Amplifier board
Attention: This amplifier board is designed for mono sound. If you need stereo sound, please purchase 2 of them
