1. Use NE5532 chip, can replace OP275, AD828, NJM4558, TL072 and other general-purpose dual op-amps
2. Low quiescent current and noise suppression
3. Bass: 100HZ/80DB gain adjustment
4. Tweeter: 10KHZ/80DB gain adjustment
5. Frequency response: 20-20000HZ
6. Signal to noise ratio: 98dB
7. Supply voltage: DC9-24V (5 x 2.1mm core input, 2P chassis input)
8. Rated power 2x770mW stereo (24V/32 ohms) can be connected to loads above 32 ohms
9. Output method: 3.5mm audio jack
10. Input method: 3.5mm audio terminal, 3P 2.54mm terminal block, 6P 2.5mm chassis
11. PCB: 72x53mm
12. Overall: 72x53x15mm
13. Potentiometer knob opening: 7mm
14. Distance between mounting holes: 47.58x36mm
15. Net weight: 54g