Claims
- 1. A subwoofer comprising:
a. a cabinet; b. a transducer disposed in said cabinet; and c. two passive radiators disposed in said cabinet whereby said two passive radiators are disposed opposite to each other and orthogonal to said transducer. The transducer 1212 and the two passive radiators are. The cabinet 1211 is substantially airtight.
- 2. A surround for use in an electron-dynamic acoustical transducer including a frame, a diaphragm and a voice coil, said surround comprising a single, large, semi-circular corrugation being constructed from compressed neoprene foam rubber and being secured to the frame by the surround whereby said surround has a plurality of radially distributed, relatively less-compressed areas.
Parent Case Info
[0001] This application is a continuation-in-part of an application, filed Mar. 14, 2000 under Ser. No. 09/523,870, now U.S. Pat. No. 6,343,134, which is a continuation-in-part of an application, filed Jan. 28, 1998 under Serial. No. 09/014,700, now U.S. Pat. No. 6,038,326, and a continuation-in-part of an application, filed Oct. 9, 2001 under Ser. No. 09/973,472.
Continuation in Parts (3)
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Number |
Date |
Country |
Parent |
09523870 |
Mar 2000 |
US |
Child |
10060038 |
Jan 2002 |
US |
Parent |
09014700 |
Jan 1998 |
US |
Child |
09523870 |
Mar 2000 |
US |
Parent |
09973472 |
Oct 2001 |
US |
Child |
09523870 |
Mar 2000 |
US |