TechnoT

Hello Remove the two ports from the rear of the speaker (RF7-iii) and reposition the internal baffling foam so that there is a clear path between the rear of the woofer driver and the port. Reinstall port in the rear. Fixed. This took me two years to figure out. Not sure if it is a design fault or a quality control issue but my bass response is far better without the form between the driver and port exit. Best of luck.