Passive Radiator

Technology / Home Audio / Passive Radiator: A type of bass reflex speaker enclosure that includes a 'passive' woofer in addition to the main woofer. The passive woofer isn't powered, but moves in response to changes in air pressure inside the cabinet that are caused by movement of the main woofer. Passive radiators are often used in speaker cabinets too small for a properly tuned port. Plus, they avoid some of the issues associated with ports such as port turbulence, which can sometimes lead to a low-pitched whistling noise coming from the port. However, passive radiators tend to be more complex to design, so you'll typically pay more for speakers with passive radiators than similar ported models.

Other Words for Passive

Passive Adjective Synonyms: inactive, non-aggressive, inert, motionless, unresponsive, quiet, calm, tranquil, serene, placid, still, idle, unmoving, unmoved, impassive, untouched, cool, indifferent, phlegmatic, uninterested, uninvolved, dispassionate, apathetic, lifeless, listless

Passive Portfolio

Business / Finance / Passive Portfolio: A market index portfolio. MORE

Passive Matrix

Technology / Computers / Passive Matrix: An older form of LCD (liquid crystal display) technology that processes pixels using row-and-column formatting. This type of formatting produces slower responce times and lower contrast ratios when co MORE

Passive Portfolio Strategy

Business / Finance / Passive Portfolio Strategy: A strategy that involves minimal expectational input, and instead relies on diversification to match the performance of some market index. A passive strategy assumes that the marketplace will reflect MORE