1 NE5532P Chip: Other op amp chip such as OPA2604AP OP275G TL072, etc. can also be replaced, very simple and practical. 2 Board Structure: 3 channel output, treble, bass, midrange, which ensures good sound quality and more audio enjoyment. 3 Crossover Point: 500HZ, 5kHZ, that is, 20HZ-500HZ is bass output, 500HZ-5KHZ is midrange output, 5KHZ-20KHZ is treble output. 4 Filter Type: Subtractive divider, also comes with -24dB/Oct attenuation slope, so the preamp module has high efficiency. 5 Easy to Install: Designed to have a light weight and a compact size as well, the installation is very convenient.
What's in the box
1 x Preamplifier
