1. Digital integrated chip + 4 pairs of tube boost function, low power consumption, high output 2. Pure aluminum heat sink + aluminum control panel, with good thermal conductivity 3. Thickened copper wire with magnetic sense to enhance the adsorption force 4. Distortion level: less than 0.04% 5. Signal-to-noise ratio: more than 90dB 6. Rated power: 80W 7. Rated impedance: 4 ohms 8. Power: up to 600W 9. Frequency range: 20Hz-25KHz 10. Voltage support: 12/24V 11. Applicable models: universal 12. Dimensions: about 16.5 x 11.7 x 6cm 13. Weight: about 400g