Products from the USA may come with an input voltage of 110V–120V, requiring a step-down transformer. Check the device wattage to select the correct power converter.
•NE5532P Chip: Other op amp chip such as OPA2604AP OP275G TL072, etc. can also be replaced, very simple and practical.
•Board Structure: 3 channel output, treble, bass, midrange, which ensures good sound quality and more audio enjoyment.
•Crossover Point: 500HZ, 5kHZ, that is, 20HZ‑500HZ is bass output, 500HZ‑5KHZ is midrange output, 5KHZ‑20KHZ is treble output.
•Filter Type: Subtractive divider, also comes with ‑24dB/Oct attenuation slope, so the preamp module has high efficiency.
•Easy to Install: Designed to have a light weight and a compact size as well, the installation is very convenient.
From USA
