Fill in lower tones missing on small speakers, flat panel TVs, etc.

not a true sub except in a TINY room... not for sub-sonic rumble... too small for that.

Great addition to a flat panel TV with Variable subwoofer output proportional to the sound level... adds that totally missing bass on male voices and lower strings of piano, adds some level to explosions/low effects.

Customer Service

none needed on this older used prouct from Goodwill store, still works like a champ.

Similar Products Used:

Altec PC speakers, and form other manufacturers.