Totaly awesome speaker for your DIY speaker paired it with TDA7498 apmlifier and its just at the limit of the speaker at 24v supply i managed to get 50 hz with quite a big volume of a box i will order this again to try to make a small subwofer from 4 of these speakers with a big passive radiator and 2x TDA7498 with a 6S li-ion battery pack maybe i ll make a youtube vid with the new setup because my speaker that i build right now resonates pretty badly at around 115hz but it is my bad only because i paired it with car speakers that are just bad its all in one box with aroud 9.2L of volume
Very good production quality, fast delivery.