| 12 π observations and comparisons with other designs [message #47286 is a reply to message #47284] |
Fri, 08 July 2005 02:53   |
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Wayne Parham
Messages: 18835
Registered: January 2001
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Illuminati (33rd Degree) |
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The 12 π basshorn subwoofer was made largely in response to the LABhorn, and seeks to improve upon it. It's a basshorn I can get excited about. The 12 π is big enough to work well standing alone, and exceptional when used in pairs or groups. But it's still small enough to pass through 30" doors. With castor wheels, a 12 π basshorn sub can be wheeled across hard surfaces by one man. Lifting and carrying isn't going to be a joy, but it isn't going to take a forklift either.
I modeled a LABhorn for comparison. Here are the Hornresp models and simulation outputs:
Hornresp data input for the LABhorn
Hornresp data input for the 12 π basshorn
Single LABhorn response, floorstanding in open space, 2.83VRMS input
Single 12 π basshorn response, floorstanding in open space, 2.83VRMS input
Response of four LABhorns, or a single horn standing in a corner, 2.83VRMS input
Response of four 12 π basshorns, or a single horn standing in a corner, 2.83VRMS input
Single LABhorn response, floorstanding in open space, 45VRMS input
Single 12 π basshorn response, floorstanding in open space, 45VRMS input
Response of four LABhorns, or a single horn standing in a corner, 45VRMS input
Response of four 12 π basshorns, or a single horn standing in a corner, 45VRMS input
Response of a large group of LABhorns approaches this (infinite horn)
Response of a large group of 12 π basshorns approaches this (infinite horn)
Driver excursion of LABhorn at 45VRMS input
Driver excursion of 12 π basshorn at 45VRMS input
LABhorn acoustic impedance
12 π basshorn acoustic impedance
LABhorn electrical impedance
12 π basshorn electrical impedance
LABhorn electrical impedance (per horn) when four are used freestanding or one is used in a corner
12 π basshorn electrical impedance (per horn) when four are used freestanding or one is used in a corner
LABhorn phase
12 π basshorn phase
Phase of four LABhorns
Phase of four 12 π basshorns
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