A rotary woofer is a subwoofer-style loudspeaker which reproduces very low frequency content by using a conventional speaker voice coil's motion to change...

Rotary tiller, a motorised cultivator Rotary woofer, a type of loudspeaker capable of producing very low frequency sound Rotary wing aircraft Rotary International...

A rotary woofer is essentially a fan with blades that constantly change their pitch, allowing them to easily push the air back and forth. Rotary woofers...

reproduction, exotic loudspeaker designs such as transmission line, rotary woofer, or traditional subwoofer designs can produce low-frequency sounds,...

are lower in frequency than those which can be (optimally) generated by a woofer. The typical frequency range that is covered by a subwoofer is about 20–200 Hz...

loudspeaker, the LFT-3. Another of the company's products is the Thigpen Rotary Woofer. Typical subwoofer products are inefficient at producing desired sound...

2way rotary speakers) RA-50 (1970s, single rotary + woofer) RA-70R RA-100 (1970s, dual rotary + woofer) RA-200R (1970s, triple rotary + woofer) — David...

Emergency Alert System Fire alarm system Long Range Acoustic Device Rotary woofer Testing sirens Archived 22 October 2013 at the Wayback Machine, Swiss...

are called woofers, while those for very low bass range are subwoofers. Less common types of drivers are supertweeters and rotary woofers. The electroacoustic...

basement, or a closet or attic. This is often the case with exotic rotary woofer installations, as they are intended to go to frequencies lower than...