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September 2007

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From:
"Stadem, Richard D." <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Stadem, Richard D.
Date:
Thu, 20 Sep 2007 14:45:37 -0500
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No,no,no. The gun was an Ithaca. Ithaca is in Greece. It was just a pun. No offense meant, and sorry if it appeared that way. 



-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Barry Gallegos

Sent: Thursday, September 20, 2007 2:39 PM

To: [log in to unmask]

Subject: Re: [TN] SV: [TN] NTC:subwoofer



Greecers? If by that insinuation you mean of Hispanic decent then sirs will have to take exception to this line of discussion.



As I have issues with that type of sound levels as well, it would not be correct for me to resort to racial remarks. If that is what Greecers means.



Barry





-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.

Sent: Thursday, September 20, 2007 1:34 PM

To: [log in to unmask]

Subject: Re: [TN] SV: [TN] NTC:subwoofer



I don't know if they were Baldies or Greecers, but they were الهدوء! 



-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Whittaker, Dewey (EHCOE)

Sent: Thursday, September 20, 2007 2:17 PM

To: [log in to unmask]

Subject: Re: [TN] SV: [TN] NTC:subwoofer



Since you took the Ithaca, I assume you were engauging a bunch of Greecers.

Dewey



-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.

Sent: Thursday, September 20, 2007 12:08 PM

To: [log in to unmask]

Subject: Re: [TN] SV: [TN] NTC:subwoofer



I used to have that problem. I simply walked outside holding my 10 gauge Ithaca side-by-side under my arm. It suddenly got very quiet, and now it stays that way. 



-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory

Sent: Thursday, September 20, 2007 1:57 PM

To: [log in to unmask]

Subject: Re: [TN] SV: [TN] NTC:subwoofer



Yeah Inge, I know your system sounds a lot better than anything in some of these vehicles. Some of these guys try to put as much sound power as they can in their vehicles without blowing the windows out. It doesn't matter if it sounds good, it's all about how well you can feel the sound... 



The contests that they have are one thing, but it is irritating as hell to be sitting in my living room trying to watch TV or read, and hear this; "thump..thump..THUMP,THUMP,BOOM!BOOM!THUMP,THUMP..thump..thump" as the car (or whatever it is) drives by my apartment. Do that stuff in a mall parking lot or something, not in an apartment complex. The apartment owners have posted signs at the entrances to the complex to keep the stereos turned down, but I think that just encourages them to crank it up as loud as they can.



Steve 



-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Hfjord

Sent: Thursday, September 20, 2007 1:33 PM

To: [log in to unmask]

Subject: [TN] SV: [TN] NTC:subwoofer



My few 400 Watts MATCHED with room volume is far better than 20,000 Watts nearly 100% ATTENUATED in that small volume. Means that lots of power moves back to PA, some transformed into mechanical energy,  and you get no sinus, all distorted. 100% meaningless transportation of mechanical/electrical energy forth and back. But probably very funny to build.



Inge



-----Ursprungligt meddelande-----

Från: TechNet [mailto:[log in to unmask]] För Steve Gregory

Skickat: den 20 september 2007 18:20

Till: [log in to unmask]

Ämne: Re: [TN] NTC:subwoofer



Here in the states there's this thing that's going on that guys try to pack as much sound as they possibly can into their vehicles, I mean they go to crazy extremes! They even have competitions of who has the most powerful sound systems. They're really into low frequencies, the bass thump, thump, thump.



Here's a video clip of a guy that has a Chevy Tahoe that has four 18-inch subwoofers that's being driven by 20,000 watts! You can see the windows and body panels flexing, and there are two girls, one sitting in the front passengers seat, and the other standing outside the front passengers door, who hair looks like it's being blown by hurricane winds when the guy cranks the system up!  Unbelievable!



http://www.stevemeadedesigns.com/videos/tremendob5.wmv



Steve 



-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Graham Collins

Sent: Thursday, September 20, 2007 11:02 AM

To: [log in to unmask]

Subject: Re: [TN] NTC:subwoofer



Last time I cranked up my system my subwoofer was emitting this horrible crackling noise...  found a "Bob the Builder" toy crane on top of the cone.  If I was running Inge's power levels I could have blown that

thing through the roof!!!  Can we wreck it?  Yes we can!!!    



>>> Phil Nutting 09/20/07 12:43PM >>>

I'm jealous. If I run anything louder than a whisper my family complains.  My cheap $10 computer speakers get me by.  Sigh.  



I did have a chance to turn up the big stereo system one day when my daughter said her system was louder than mine.  He, He, He, children are so innocent.  Seeing the challenge I sent her to her room to "turn up her system".  Once up there I put our old, 30+ years, stereo up to about half volume.  She quickly conceded.



Speaking of deaf neighbors, I was renting the house next door (100 feet

away) to a friend.  One day while sitting on my sofa I started bouncing up and down as the earth vibrated.  Seems my renter had turned up his system while playing the Eurhythmics "Sweet Dreams Are Made of These".

Think what it was like inside his house.



Phil



-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Eric CHRISTISON

Sent: Thursday, September 20, 2007 11:26 AM

To: [log in to unmask]

Subject: Re: [TN] NTC:subwoofer



Are your neighbours deaf or do you live in the countryside?



Ahne Oosterhof wrote:

> 400 Watt and a 4 Ohm speaker?!?  Make sure you have high temperature 

> insulation on the speaker cables and watch out for the broken window

glass.

> That's why Philips made 400 and 800 Ohm speakers. Still got some.

>

> Ahne.

>

>

> -----Original Message-----

> From: TechNet [mailto:[log in to unmask]] On Behalf Of Hfjord

> Sent: Wednesday, 19 September, 2007 13:57

> To: [log in to unmask]

> Subject: [TN] NTC:subwoofer

>

> Audio techies,

> I've built a subwoofer with a 15" 400 Watt loadspeaker (4 Ohms).

Bought a

> 200 Watt low frequency 12 V amplifier. For that one, I built a 12

VDC

power

> supply with 15 A toroid, regulator, OP amplifier and a backup

consisting of

> totally 100,000 uF on the output. What is your experience? Will

these

caps

> be enough to take the short power tops in Space War or the enormous

sound

> effects in Matrix or Jurassic Park? Any thumb rules or maths?

> /Inge

>

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>   



--

Eric Christison Msc

Mechanical Engineer

Home Personal, Communication Sector

Imaging Division



STMicroelectronics (R&D) Ltd

33 Pinkhill

Edinburgh EH12 7BF

United Kingdom



Tel:	+44 (0)131 336 6165

Fax:	+ 44 (0)131 336 6001



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