Search results
Results from the WOW.Com Content Network
Polk Audio was founded by Matthew Polk, George Klopfer and Sandy Gross in 1972. The three first met one another while attending classes at Johns Hopkins University in Baltimore . After graduating in 1971, the team collaborated on producing a sound system for a local bluegrass music convention.
In April 2013, the company combined Polk, Definitive Technology and the Boom Movement brands into a new division called Sound United. [ 7 ] In April 2015, the company released its W7 speaker with support for the Play-Fi wireless protocol for multi-room audio, produced by audio company DTS, Inc. , now owned by holding company Xperi . [ 1 ]
Maintenance engineers make them to ensure equipment is still working to specification, or to ensure that the cumulative defects of an audio path are within limits considered acceptable. Audio system measurements often accommodate psychoacoustic principles to measure the system in a way that relates to human hearing.
The term loudspeaker may refer to individual transducers (also known as drivers) or to complete speaker systems consisting of an enclosure and one or more drivers.. To adequately and accurately reproduce a wide range of frequencies with even coverage, most loudspeaker systems employ more than one driver, particularly for higher sound pressure level (SPL) or maximum accuracy.
Data from Aerostar operating manual General characteristics Crew: one Capacity: one passenger Length: 6.74 m (22 ft 1 in) Wingspan: 9.17 m (30 ft 1 in) Height: 2.47 m (8 ft 1 in) Wing area: 13.97 m 2 (150.4 sq ft) Empty weight: 354 kg (780 lb) with Rotax ULS912 engine Gross weight: 535 kg (1,179 lb) Fuel capacity: 80 litres (18 imp gal; 21 US gal) Powerplant: 1 × Rotax 912ULS four cylinder ...
Madrigal Audio Laboratories was founded in 1984 by Sanford Berlin (1927 – March 11, 2008), when he took over the Highend audio-company Mark Levinson. Further brands of Madrigal were Audioaccess, Proceed, Madrigal, Imaging. 1997 the subsidiary Revel Audio for high quality loudspeakers was founded.
One example is a speaking tube used aboard ships for communication between decks.. Other examples include the rear passage in a transmission-line loudspeaker enclosure, the ear canal, and a stethoscope.
R40 (New York City Subway car) Chloromethane, a refrigerant; R40: Limited evidence of a carcinogenic effect, a risk phrase; R40 Live Tour, a 2015 tour by Canadian rock band Rush; R40 series of preferred numbers; Renault R40, a French tank; Rover 75, an executive car; Samsung Sens R40, a laptop; Toyota TownAce (R40), a Japanese van