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alpha [message #34015] Sat, 06 October 2001 09:53 Go to next message
eki is currently offline  eki
Messages: 5
Registered: May 2009
Esquire
I want to make subwoofer using Eminence Alpha 10” Please tell me about box volume, dimensions and box tuning for single vented box.
Alpha 10 tuning [message #34017 is a reply to message #34015] Sat, 06 October 2001 14:52 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18791
Registered: January 2001
Illuminati (33rd Degree)
An Alpha 10 in a 5 cubic foot box tuned to 40Hz has flat response down to 30Hz.
Re: Alpha 10 tuning [message #34019 is a reply to message #34017] Sun, 07 October 2001 04:47 Go to previous messageGo to next message
eki is currently offline  eki
Messages: 5
Registered: May 2009
Esquire
Hello Wayne. I want too thank you for all your help. Is this speaker loud at 30hz? or is it barely loud there?
Re: Alpha 10 tuning [message #34020 is a reply to message #34019] Sun, 07 October 2001 08:28 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18791
Registered: January 2001
Illuminati (33rd Degree)
The response curve is flat to 45Hz, down -3dB at 38Hz and -10dB at 30Hz. Its thermal limits and excursion limits are almost the same, giving maximum output of about 110dB at 1 meter. Within the passband, excursion is the limit between 50Hz and 80Hz and heat is the limit above and below that point. Obviously, the excursion limit is quite low below 35Hz, so high pass at that point.
thank you [message #34022 is a reply to message #34020] Sun, 07 October 2001 09:31 Go to previous message
eki is currently offline  eki
Messages: 5
Registered: May 2009
Esquire
thank's Wayne for all your help.
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