I bought a pair of BIC Acoustech PL 980 tower speakers. The speaker has two 8 active woofers. Not subwoofers, just woofers. I want to know what are active woofers in a tower speaker?
Most speaker drivers (tweeter, mid-range, woofer) in a speaker are 'passive' because the speaker requires power from an external amp/AV Receiver. Most external subwoofers have their own AC power cord amplifier built in. So these are considered an 'active' speaker. Some tower speakers come with woofers and a built in amp for the woofer so the woofers are 'active'. These are also called Powered Towers.
BIC does not make towers that have amps built in to power their bass drivers. You have misread or misunderstood the product description. While there are some very high end systems that do this, what is powered are built in the same cabinet sub woofers. this in such a case, usually because the maker wants to provide a high end system whose sub bass he has more control over, and to meet a certain styling requirement, or perhaps to sell more of his own stuff. these are 20,000 and up systems, usually.
They're calling them active woofers, simply to differentiate the two woofers which are active drivers, from the other two, similar looking woofer cones, which are passive radiators.
