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 Little known audio secret
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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OP
shareholder in the making
Joined: Jan 2007
Posts: 10,490 Likes: 116 |
In 1986, I had the pleasure of taking my first Control Systems course from Dr. Neam. For those of you not familiar with Control Systems, one learns how to stabilize physical systems so they behave under specified conditions. In EE, one makes use of analog or digital filters to achieve stability.
Dr. Neam's dad, Perry, was also an EE. He was fascinated by audio. During a pub outing, Dr. Neam shared a story that apparently very few in the audio world know. Perry was tinkering to see what effect a band of low frequencies and the shape of the band (the Q) had on human physiology. By total accident, he discovered a center frequency of 45.3 Hz with a bandwidth of 12.6 Hz and a Q of 0.87, imbued an excitory response in the pudendal nerve. This effect became more pronounced as he turned up the gain.
Now I have no idea how Andrew found out about this. There is nothing in the literature that describes this serendipitous effect. I do know however that Andrew implemented this response in the 125v4. When I listen to the dual 125s in my living room, as that area between my boys and my sphincter is aroused, I am always reminded of Dr. Neam and his dad Perry.
This effect isn't evident in the sealed subs. Those hit deep in the 'nads. Besides the 125v4, I expect the other sphinctered subs to elicit a similar response.
Sealed or sphinctered, I love them all!
House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated
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1 member likes this:
brwsaw |
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Re: Little known audio secret
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Joined: Sep 2020
Posts: 572 Likes: 24
aficionado
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aficionado
Joined: Sep 2020
Posts: 572 Likes: 24 |
I think I'm going to do dual 125s as rear subs with the dual 600s up front.
LFR1100
VP180HP
EP600
M3 In Ceiling x 4
M5OW
M2 - Atmos rears
ADA1500.5
M3 Outdoor Speakers
ADA 1000.8
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Re: Little known audio secret
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Joined: Jul 2004
Posts: 4,444 Likes: 16
connoisseur
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connoisseur
Joined: Jul 2004
Posts: 4,444 Likes: 16 |
Where the hell have you been, young man???!!!
Your friends have been worried sick about your prolonged absence.
I have no comments regarding your post.
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Re: Little known audio secret
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Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
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shareholder in the making
Joined: Jan 2004
Posts: 13,840 Likes: 13 |
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Little known audio secret
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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OP
shareholder in the making
Joined: Jan 2007
Posts: 10,490 Likes: 116 |
Where the hell have you been, young man???!!!
Your friends have been worried sick about your prolonged absence. For Axiom's sake, that's private...for now.
House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated
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1 member likes this:
brwsaw |
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Re: Little known audio secret
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Joined: Sep 2012
Posts: 1,037 Likes: 69
connoisseur
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connoisseur
Joined: Sep 2012
Posts: 1,037 Likes: 69 |
This can be created in audacity I believe. How many bpm?
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Re: Little known audio secret
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Joined: Sep 2009
Posts: 1,898 Likes: 101
connoisseur
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connoisseur
Joined: Sep 2009
Posts: 1,898 Likes: 101 |
Where the hell have you been, young man???!!! . . Obviously sitting on his 125’s 
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