1. Suitable for speakers: full-range speakers up to 4 inch
2. Ohm: 4-8 ohm
3. Function: cut and trim the middle and high frequencies to meet the requirements of the overall curve flatter
4. Adjustable switch, adjust the trap frequency and cut amount, wider adaptability
5. Non-soldering terminals, more convenient wiring
6. Size: 58 x 46mm
7. Weight: about 46g