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alpha 8 enclosure volume [message #46523]

Sun, 20 March 2005 09:35

paul d
Messages: 2
Registered: May 2009

Esquire

On the eminence website, they say the recommended enclosure volume for the alpha 8 is 1.1 to 1.8 cf. Your design is 1 cf for the external dimension of the cabinet, so maybe its .8 or.9 cf for the internal volume.

Why go with a smaller box than recommended?

and

How does the alpha 8 sound in a 1.8 cf cabinet?

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Re: alpha 8 enclosure volume [message #46524 is a reply to message #46523]

Sun, 20 March 2005 09:50

Wayne Parham
Messages: 18792
Registered: January 2001

Illuminati (33rd Degree)

The Alpha 8 works best in 0.5ft3 to 2.0ft3 tuned to 55Hz. It really is a midrange driver and can be used with a very small rear chamber, but you can coax them to produce bass with a good response curve in larger cabinets up to two cubic feet.

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Re: alpha 8 enclosure volume [message #46525 is a reply to message #46524]

Sun, 20 March 2005 09:57

paul d
Messages: 2
Registered: May 2009

Esquire

Thanks!

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1 Pi Minitower [message #46534 is a reply to message #46524]

Tue, 22 March 2005 04:04

Oscarl
Messages: 20
Registered: May 2009

Chancellor

Wayne, have you ever considered a 1 Pi Tower of 2 cubic feet?

Oscar

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Re: 1 Pi Minitower [message #46536 is a reply to message #46534]

Tue, 22 March 2005 10:36

Wayne Parham
Messages: 18792
Registered: January 2001

Illuminati (33rd Degree)

A person could surely make a nice little one π tower. An Alpha 8 in a 2.0ft3 cabinet tuned to 55Hz makes a nice flat response curve with f3 of 50Hz, so that's pretty cool. But it becomes very sensitive to parameter shifts at that size. I think I might make the box just slightly smaller or tune slightly lower so that any shift towards underdamping doesn't result in a large peak. Maybe 1.8ft3 tuned to 55Hz or 2.0ft3 tuned to 55Hz, someting like that.

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