There is also some fading to the speakers. Am / Fm Radio (22). Audio Pro Addon C5a (13). The four woofers/drivers are Bandor (Copper Coil, 16ohm, 25 RMS) and the tweeters are Morel MDT40s. I would like to confirm that, although having a gap/hole for a bass port, these cabinets are indeed sealed (as per the pictures, the black you can see is a wooden seal fitted in the factory making these a sealed cabinet).