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Topic: George , question for you |
Greg Lambert
From:
Illinois, USA
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Donny Hinson
From:
Glen Burnie, Md. U.S.A.
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Posted 5 Apr 2019 10:30 am |
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Possible....problems?
Have you thought about deafness? |
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Greg Lambert
From:
Illinois, USA
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Posted 5 Apr 2019 10:41 am
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| Donny Hinson wrote: |
Possible....problems?
Have you thought about deafness? |
This will be used to target barking dogs 200 feet away. |
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Godfrey Arthur
From:
3rd Rock
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Posted 5 Apr 2019 10:59 am
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| Greg Lambert wrote: |
| This will be used to target barking dogs 200 feet away. |
20k is not high enough for dog blasting. It's beyond human hearing for them. More like 50k. Plus your tweeter may not be capable of what you're contemplating.
But if you don't put a cap on the tweeter, unless it's a piezo you'll get all the lower frequencies in there and may blow the tweeters. 
_________________
ShoBud The Pro 1
YES it's my REAL NAME!
Ezekiel 33:7 |
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Greg Lambert
From:
Illinois, USA
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Posted 5 Apr 2019 12:19 pm
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| Godfrey Arthur wrote: |
| Greg Lambert wrote: |
| This will be used to target barking dogs 200 feet away. |
20k is not high enough for dog blasting. It's beyond human hearing for them. More like 50k. Plus your tweeter may not be capable of what you're contemplating.
But if you don't put a cap on the tweeter, unless it's a piezo you'll get all the lower frequencies in there and may blow the tweeters. |
25k is the highest freq that I can find an amplifier with any power for.
I have recorded a 20k signal and have pulsed it a random rates and it get there attention but I was only pushing 50 watts into a tweeter so it didnt do much for the continuous barking.
I figure 300 watts may make it a bit uncomfortable for them. |
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Georg Sørtun
From:
Mandal, Agder, Norway
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Posted 5 Apr 2019 12:30 pm
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Children about 14 years and younger can register frequencies below 30KHz, and at higher levels may get their hearing damaged. For useful dog-scaring frequencies – 40 to 60KHz – only very small piezo elements will do, but they will also need to be high-pass filtered to prevent them from getting burned out.
Effects needed to blast dogs at well beyond 200ft distance are low – below 10 Watt – at such high frequencies, and the frequency should be modulated a few KHz up and down over a few seconds to avoid loss of effect (on the dogs) over time. You'll most ligely get rid of rodents in the covered area too, or they'll stay underground. |
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Godfrey Arthur
From:
3rd Rock
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Posted 5 Apr 2019 12:46 pm
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| Greg Lambert wrote: |
25k is the highest freq that I can find an amplifier with any power for.
I have recorded a 20k signal and have pulsed it a random rates and it get there attention but I was only pushing 50 watts into a tweeter so it didnt do much for the continuous barking.
I figure 300 watts may make it a bit uncomfortable for them. |
30khz may get that RCA dog tilt action going on them hounds.
$1000
Features:
Very small size for power output
Can be used in 3, 4, 5 & 6 channel modes
High-level input, compatible with OEM Stereo
Easily accessible settings
Remote sub control
Invisible mounting bracket
Highest level of crossover flexibility
Specifications:
Power into 4 Ohms: 6x150W rms
Power into 2Ohms: 4x200 + 2x250W rms
Bridged mode into 4 Ohms: 2x400 + 1x500W rms
Bridged mode into 2 Ohms (Ch 5&6 only): 1x600W rms
Frequency response: 5Hz–30kHz
Signal/noise ratio: >101dB (A)
Adjustable gain: 200mV + 10V
Protections: Short-circuit, thermal overload, polarity reversal, DC
Approximate Dimensions:
Height: 2"
Width: 14-3/8"
Depth: 7-3/4"
Approximate Weight:
Shipping: 7 lbs
Better put some long throw horns on those tweeters.
This CTS will handle 400 watts and go up to 30khz!
CTS KSN-1142 PIEZO SUPERTWEETER
Sinbosen 4X1350 watts Lab Fp10000q Gruppen Professional Audio Power Amplifier
5000x2 watts in bridged mode @ 4 ohms. It's a 4-channel amp. Goes up to 34khz. About $500. Sino made.
_________________
ShoBud The Pro 1
YES it's my REAL NAME!
Ezekiel 33:7 |
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Mike Bacciarini
From:
Arizona
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Posted 5 Apr 2019 2:08 pm
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Something else to consider... the high frequencies are progressively more directional (unlike low freqs). Line of sight (no obstructions) would be preferable. Sounds like something we've all toyed with doing over the years... Have fun!
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MCI Arlington S-10 3+5, George L E-66, BJS & Emmons bars, Fender Stage Lead II 100W 1x12, Fender Satellite SFX, custom FX rack, 1983 Dobro 60D, Martin D16GT, Ibanez AS73, 1978 Rickenbacker 4000 custom. |
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Donny Hinson
From:
Glen Burnie, Md. U.S.A.
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Posted 5 Apr 2019 5:02 pm
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| Greg Lambert wrote: |
| Donny Hinson wrote: |
Possible....problems?
Have you thought about deafness? |
This will be used to target barking dogs 200 feet away. |
I'd be worried about your own exposure to high sound levels, those above your range of hearing. Sounds you can't hear can damage your hearing, and if you can't hear them, you won't know damage has occured until after the damage is done.
Proceed with caution.  |
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Greg Lambert
From:
Illinois, USA
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Posted 7 Apr 2019 7:15 pm
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| Donny Hinson wrote: |
| Greg Lambert wrote: |
| Donny Hinson wrote: |
Possible....problems?
Have you thought about deafness? |
This will be used to target barking dogs 200 feet away. |
I'd be worried about your own exposure to high sound levels, those above your range of hearing. Sounds you can't hear can damage your hearing, and if you can't hear them, you won't know damage has occured until after the damage is done.
Proceed with caution. |
thanks Donnie , Im planning to put the tweeters in separate PVC tubes approx 3 feet long to directionalize the signal. |
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