Frequently criticized
Commenters describe blown amps linked to pushing the speakers too loud or improper usage. Two users explicitly state 'you blew the amp' as the cause of reported problems.
Frequently criticized
A commenter explains the SMPS and class D chip driving the woofer are very sensitive to bad power cords, imperfect contacts, and rapid on-off-on switching, which can permanently damage the unit.
Frequently criticized
One user reports their active sub smelled of burning and found brownish burnt material near what may be the amplifier after opening the unit, raising concerns about internal component failure.
Generally negative
An owner of the related B205D reports the same problem, where the speaker works again after waiting a few hours, pointing to a possible failing power board.
Generally negative
A user who replaced a failed tweeter diaphragm reports the unit squealed upon power-up despite correct wiring and mounting, with no burning smell detected, indicating a deeper unresolved fault.
Generally negative
An owner of two units asks where to order a replacement speaker and 1.5in compression horn, suggesting difficulty finding official replacement parts.