Thunders

Gerry Iaria

Moderator
Staff member
Thread Starter
Joined
Nov 10, 2018
Messages
154
Location
Portugal
More  
Preamp, Processor or Receiver
Marantz Cinema 50
Universal / Blu-ray / CD Player
Sony X800
Front Speakers
Arendal 1961 monitors
Center Channel Speaker
Arendal 1961 centre monitor
Surround Speakers
Altec c1
Surround Back Speakers
Totem Acoustic Dream catcher
Subwoofers
Arendal Sub1- Ken Kreisel 800
Screen
Samsung S95C 77inch
Remote Control
yes, L.O.L
Streaming Equipment
Apple
Streaming Subscriptions
Apple,Netflix, Prime, Skyanytime
Hello, I was asleep the other night, when suddenly had a huge thunderstorm, one particular thunder was so loud that it shook the house, I thought I wish I had a subwoofer like that, and then thought, at what frequency, compared to a sub or two, thunders operate? this particular one, must have had some really low frequency to shake the house, just curious, but I thought I'll get people to reply and suggest
 

Sonnie

Senior Admin
Staff member
Joined
Apr 2, 2017
Messages
5,254
Location
Alabama
More  
Preamp, Processor or Receiver
StormAudio ISP Elite 24 MK3 Processor
Main Amp
McIntosh MC1.25KW Monoblock Amps
Additional Amp
StormAudio PA 16 MK3
Computer Audio
Intel NUC w/ Roon ROCK
Universal / Blu-ray / CD Player
Panasonic UB9000 4K UHD Player (for media discs)
Front Speakers
RTJ 410
Center Channel Speaker
MartinLogan Focus C-18
Front Wide Speakers
JTR Neosis 110HT
Surround Speakers
JTR Neosis 210RT
Surround Back Speakers
JTR Neosis 210RT
Front Height Speakers
JTR Neosis 110HT-SL
Middle Height Speakers
JTR Neosis 110HT-SL
Rear Height Speakers
JTR Neosis 110HT-SL
Subwoofers
JTR Captivators - 4000ULF-TL x2 + 2400 x6
Other Speakers or Equipment
VTI Amp Stands for the Monoblocks
Video Display Device
Sony 98X90L
Remote Control
AVA Cinema
Streaming Equipment
Kaleidescape | Lenova X1 - Intel NUC for Roon
Streaming Subscriptions
Lifetime Roon Subscription
Tidal
qobuz
Netflix
Amazon Prime
Satellite System
Dish Joey 4K
Other Equipment
Zero Surge 8R15W-1 | Salamander Synergy Equipment Stand
It varies, as some may shake the house while others won't. My guess would be from infrasonic on up to 100Hz or so.
 

Gerry Iaria

Moderator
Staff member
Thread Starter
Joined
Nov 10, 2018
Messages
154
Location
Portugal
More  
Preamp, Processor or Receiver
Marantz Cinema 50
Universal / Blu-ray / CD Player
Sony X800
Front Speakers
Arendal 1961 monitors
Center Channel Speaker
Arendal 1961 centre monitor
Surround Speakers
Altec c1
Surround Back Speakers
Totem Acoustic Dream catcher
Subwoofers
Arendal Sub1- Ken Kreisel 800
Screen
Samsung S95C 77inch
Remote Control
yes, L.O.L
Streaming Equipment
Apple
Streaming Subscriptions
Apple,Netflix, Prime, Skyanytime
It varies, as some may shake the house while others won't. My guess would be from infrasonic on up to 100Hz or so.
Wow, that low? It would definitely shake the house a sub line that
 

Sonnie

Senior Admin
Staff member
Joined
Apr 2, 2017
Messages
5,254
Location
Alabama
More  
Preamp, Processor or Receiver
StormAudio ISP Elite 24 MK3 Processor
Main Amp
McIntosh MC1.25KW Monoblock Amps
Additional Amp
StormAudio PA 16 MK3
Computer Audio
Intel NUC w/ Roon ROCK
Universal / Blu-ray / CD Player
Panasonic UB9000 4K UHD Player (for media discs)
Front Speakers
RTJ 410
Center Channel Speaker
MartinLogan Focus C-18
Front Wide Speakers
JTR Neosis 110HT
Surround Speakers
JTR Neosis 210RT
Surround Back Speakers
JTR Neosis 210RT
Front Height Speakers
JTR Neosis 110HT-SL
Middle Height Speakers
JTR Neosis 110HT-SL
Rear Height Speakers
JTR Neosis 110HT-SL
Subwoofers
JTR Captivators - 4000ULF-TL x2 + 2400 x6
Other Speakers or Equipment
VTI Amp Stands for the Monoblocks
Video Display Device
Sony 98X90L
Remote Control
AVA Cinema
Streaming Equipment
Kaleidescape | Lenova X1 - Intel NUC for Roon
Streaming Subscriptions
Lifetime Roon Subscription
Tidal
qobuz
Netflix
Amazon Prime
Satellite System
Dish Joey 4K
Other Equipment
Zero Surge 8R15W-1 | Salamander Synergy Equipment Stand
For shaking the house it could be in the single digits.

:hsd:
 
Joined
Apr 25, 2017
Messages
101
Location
Omaha, NE
More  
Preamp, Processor or Receiver
StormAudio ISP.32 AVB
Main Amp
Digital Amp Company Cherry MEGASchino MONO's
Additional Amp
Digital Amp Company Cherry Maraschino's
Universal / Blu-ray / CD Player
HTPC
Front Speakers
JTR Speakers Noesis 215RM
Center Channel Speaker
JTR Speakers Noesis 215RM
Surround Speakers
JTR Speakers Slant 8
Surround Back Speakers
JTR Speakers Slant 8
Front Height Speakers
JTR Speakers Slant 8
Rear Height Speakers
JTR Speakers Slant 8
Subwoofers
4 ea JTR Speakers Captivator S2's
Other Speakers or Equipment
Infinite Baffle - 8 Acoustic Elegance IB15 drivers
Video Display Device
JVC DLA-NX7
Screen
Seymour AV Retractable CenterStage XD
The house shakes due to the shockwave produced by the 30,000 degree Kelvin lightning bolt that heats the air. A subwoofer can't reproduce the shockwave.
 

JStewart

Senior AV Addict
Supporter
Joined
Dec 5, 2017
Messages
2,105
Location
Central FL
The house shakes due to the shockwave produced by the 30,000 degree Kelvin lightning bolt that heats the air.

How hot is 30,000 Kelvin? In Fahrenheit that’s 50,000 degrees. Still a meaningless number in my frame of reference. But here’s an interesting factoid of temperatures on our sun:

Solar Atmosphere​

Effective temperature: 5772 K
Temperature at top of photosphere: 4400 K
Temperature at bottom of photosphere: 6600 K
Temperature at top of chromosphere: ~30,000 K

So a lightening bolt produces temperatures equal to temperatures on the sun. Yikes that’s hot.
 

Todd Anderson

Editor / Senior Admin
Staff member
Joined
Jan 20, 2017
Messages
9,335
Location
Balt/Wash Metro
More  
Preamp, Processor or Receiver
StormAudio ISP.24 MK2
Main Amp
Emotiva XPA-5
Additional Amp
Emotiva XPA Gen3 2.8 multichannel amp
Other Amp
Denon X8500H
Computer Audio
AudioEngine A2+
DAC
THX ONYX
Universal / Blu-ray / CD Player
Kaleidescape TERRA, OPPO UDP-203, Panasonic UB9000
Front Speakers
GoldenEar Technology Triton One.R
Center Channel Speaker
GoldenEar Technology SuperCenter Reference
Surround Speakers
SVS Ultra Surround
Surround Back Speakers
SVS Ultra Bookshelf
Front Height Speakers
SVS Prime Elevation x4 (Top Front, Top Mid-Front)
Rear Height Speakers
SVS Prime Elevation x4 (Top Middle, Top Rear)
Subwoofers
dual SVS SB16s + dual PSA XS30s
Other Speakers or Equipment
Behringer 1124p; Aura Bass Shaker Pros; SuperSub X
Video Display Device
JVC NX7
Screen
Seymour Screen Excellence, Enlightor NEO AT Screen
Streaming Equipment
iFi Audio Zen Blue
Streaming Subscriptions
Qobuz, TIDAL, Spotify, ROON
Other Equipment
LG Electronics 65-inch B6 OLED, Sony 65-inch X900F, ZeroSurge 8R15W x 2, ZeroSurge 2R15W x 2
You know you're into home theater when you awaken at night and start thinking about subwoofers!

Here's a link that answers your question: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/JZ072i024p06149

A dominant 200-hertz peak in the acoustic spectrum of thunder

The dominant peak in the acoustic spectrum of thunder was determined from two independent studies in which two separate techniques were used. The dominant frequency determined by counting zero crossings in a unit time interval on a pressure versus time record peaked in the range 180 to 260 hz. An average power spectrum of twenty-three thunder records showed a broad maximum near 200 hz. In neither study was there any evidence of a dominant infrasonic component (<20 hz), although the equipment used was capable of measuring frequencies as low as 0.1 hz. A theoretical analysis is presented to show that the observed peak occurs in a frequency range expected to be radiated from a cylindrical source with an energy input per unit length equal to that produced by a lightning flash.



I'd imagine that if the above is generalizable to most thunder, that thunder shaking a house is due specifically to raw power.
 

Gerry Iaria

Moderator
Staff member
Thread Starter
Joined
Nov 10, 2018
Messages
154
Location
Portugal
More  
Preamp, Processor or Receiver
Marantz Cinema 50
Universal / Blu-ray / CD Player
Sony X800
Front Speakers
Arendal 1961 monitors
Center Channel Speaker
Arendal 1961 centre monitor
Surround Speakers
Altec c1
Surround Back Speakers
Totem Acoustic Dream catcher
Subwoofers
Arendal Sub1- Ken Kreisel 800
Screen
Samsung S95C 77inch
Remote Control
yes, L.O.L
Streaming Equipment
Apple
Streaming Subscriptions
Apple,Netflix, Prime, Skyanytime
The house shakes due to the shockwave produced by the 30,000 degree Kelvin lightning bolt that heats the air. A subwoofer can't reproduce the shockwave.
wow, didn't know that, impressive :oops: :T
 

Gerry Iaria

Moderator
Staff member
Thread Starter
Joined
Nov 10, 2018
Messages
154
Location
Portugal
More  
Preamp, Processor or Receiver
Marantz Cinema 50
Universal / Blu-ray / CD Player
Sony X800
Front Speakers
Arendal 1961 monitors
Center Channel Speaker
Arendal 1961 centre monitor
Surround Speakers
Altec c1
Surround Back Speakers
Totem Acoustic Dream catcher
Subwoofers
Arendal Sub1- Ken Kreisel 800
Screen
Samsung S95C 77inch
Remote Control
yes, L.O.L
Streaming Equipment
Apple
Streaming Subscriptions
Apple,Netflix, Prime, Skyanytime
How hot is 30,000 Kelvin? In Fahrenheit that’s 50,000 degrees. Still a meaningless number in my frame of reference. But here’s an interesting factoid of temperatures on our sun:

Solar Atmosphere​

Effective temperature: 5772 K
Temperature at top of photosphere: 4400 K
Temperature at bottom of photosphere: 6600 K
Temperature at top of chromosphere: ~30,000 K

So a lightening bolt produces temperatures equal to temperatures on the sun. Yikes that’s hot.
and that's another thing that I didn't know, it's amazing what you learn on AV-Nirvana:T:)
 

Gerry Iaria

Moderator
Staff member
Thread Starter
Joined
Nov 10, 2018
Messages
154
Location
Portugal
More  
Preamp, Processor or Receiver
Marantz Cinema 50
Universal / Blu-ray / CD Player
Sony X800
Front Speakers
Arendal 1961 monitors
Center Channel Speaker
Arendal 1961 centre monitor
Surround Speakers
Altec c1
Surround Back Speakers
Totem Acoustic Dream catcher
Subwoofers
Arendal Sub1- Ken Kreisel 800
Screen
Samsung S95C 77inch
Remote Control
yes, L.O.L
Streaming Equipment
Apple
Streaming Subscriptions
Apple,Netflix, Prime, Skyanytime
You know you're into home theater when you awaken at night and start thinking about subwoofers!

Here's a link that answers your question: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/JZ072i024p06149

A dominant 200-hertz peak in the acoustic spectrum of thunder

The dominant peak in the acoustic spectrum of thunder was determined from two independent studies in which two separate techniques were used. The dominant frequency determined by counting zero crossings in a unit time interval on a pressure versus time record peaked in the range 180 to 260 hz. An average power spectrum of twenty-three thunder records showed a broad maximum near 200 hz. In neither study was there any evidence of a dominant infrasonic component (<20 hz), although the equipment used was capable of measuring frequencies as low as 0.1 hz. A theoretical analysis is presented to show that the observed peak occurs in a frequency range expected to be radiated from a cylindrical source with an energy input per unit length equal to that produced by a lightning flash.



I'd imagine that if the above is generalizable to most thunder, that thunder shaking a house is due specifically to raw power.
very interesting:T:T
 
Top Bottom