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Need 3-Pi plans for Lambda TD12S / B&C DE-250 [message #69535]

Sun, 18 September 2011 15:38

spkrman57
Messages: 522
Registered: May 2009

Illuminati (1st Degree)

Wayne,

I deleted my plans by accident (brain-fart) and would appreciate you sending them to me again please!

Thanks, Ron

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Re: Need 3-Pi plans for Lambda TD12S / B&C DE-250 [message #69536 is a reply to message #69535]

Sun, 18 September 2011 21:02

Wayne Parham
Messages: 18787
Registered: January 2001

Illuminati (33rd Degree)

You've got mail!

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Re: Need 3-Pi plans for Lambda TD12S / B&C DE-250 [message #69549 is a reply to message #69536]

Mon, 19 September 2011 09:33

spkrman57
Messages: 522
Registered: May 2009

Illuminati (1st Degree)

Got it!

One quick question, what is the port tuned to (frequency) ?
Thank You Wayne!

Regards, Ron

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Re: Need 3-Pi plans for Lambda TD12S / B&C DE-250 [message #69550 is a reply to message #69549]

Mon, 19 September 2011 10:50

Wayne Parham
Messages: 18787
Registered: January 2001

Illuminati (33rd Degree)

The three π loudspeaker cabinet is tuned to 30Hz.

Here's a list of the Helmholtz frequency of each model for reference:

one π loudspeaker - 60Hz
two π loudspeaker - 40Hz
three π loudspeaker - 30Hz
four π loudspeaker - 40Hz
six π loudspeaker - 30Hz
seven π loudspeaker - 40Hz
eight π loudspeaker - 30Hz
three π subwoofer - 20Hz

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