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Author Topic: Covering open or close basketball court (sound system thing)  (Read 3045 times)

Offline remla02

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Mga master ng audio tatanong ko lang po kaya na ba icover ng isang pares ng samson 412 at isang pares ng 600 watts powered sub ang isang basketball court? Kung hindi ano ang ideal setup na kelangan para icover ang whole court? Yung tipong masasabi nating "Pwede na" malalaman naman natin yan kung bitin o hindi right?

Dagdag tanong kung ganun ang setup ko (1 pair of samson powered speaker 412 + 1 pair of powered sub) = ideal place na kaya nitong icover? at i-mic in may mga band equipment din kasi ako.


Sa experience ko talagang bitin ang dalawang 412 samson hahaha! Oh well this is not my fault but the rentees fault yun lang talaga daw kasi ang kaya ng budget nila saka simpleng handaan lang kasi kaya di mshadong bongga.

Offline Tarkuz Toccata

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Re: Covering open or close basketball court (sound system thing)
« Reply #1 on: July 04, 2013, 08:54:04 AM »
kaya na ba icover ng isang pares ng samson 412 at isang pares ng 600 watts powered sub ang isang basketball court?

Iba-iba ang sukat ng basketball court, elementary school 288.768 sqm - NBA 436.626 sqm. Basketball court ng NBA ang gamitin natin halimbawa.

Total System Power = 1700 watts. 95 decibels kadalasan ang desired loudness para sa pop at jazz live music. Kung 95 decibels ang required sound level sa outdoor, kayang-kaya i-cover ang 436.626 sqm na basketball court.


Quote
Kung hindi ano ang ideal setup na kelangan para icover ang whole court? Yung tipong masasabi nating "Pwede na" malalaman naman natin yan kung bitin o hindi right?

Sa live music performance ng rock concert, ang madalas na desired loudness ay 100 to 110 decibels. Kung 100 decibels ang lakas ng tunog na gusto natin, bitin na para sa outdoor basketball court na ang sukat ay tulad sa NBA.

Dalawang pares ng 412 at dalawang pares 600W sub pang rock concert? Pwede na pero mga 300 sqm elementary school basketball court lang kaya i-cover outdoor.

Quote
Dagdag tanong kung ganun ang setup ko (1 pair of samson powered speaker 412 + 1 pair of powered sub) = ideal place na kaya nitong icover? at i-mic in may mga band equipment din kasi ako.

Allowing 10 decibels headroom,

Outdoor Live Rock Concert: 117 sqm or 141 seats
Pop/Jazz Concert Outdoor: 372 sqm or 446 seats
Classical Music Outdoor: 1176.62 sqm or 1412 seats

« Last Edit: July 04, 2013, 11:03:34 AM by Tarkuz Toccata »
The common saying that the ears are the ultimate judge in music production? To some extent they certainly are, but as we are now aware, they can also be fooled extremely easily. -- "How The Ear Works" (2011) by Emmanuel Deruty

Offline Xelly

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Re: Covering open or close basketball court (sound system thing)
« Reply #2 on: August 19, 2013, 06:10:57 PM »
Kung 1pair ng JBL PRX625 + 1pair ng 600watts sub(2400watts peak) sa covered court w/ fullband na nakaline-in sir?

Offline niroh

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Re: Covering open or close basketball court (sound system thing)
« Reply #3 on: August 19, 2013, 10:32:50 PM »
i'll go with sir tarkuz, madali po kasing malalaman ang required spl level ng isang venue sa sukat nito, though masyadong technical at

related sa acoustics. . . +1 talaga ang commen ni sir tarkuz

Offline Tarkuz Toccata

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Re: Covering open or close basketball court (sound system thing)
« Reply #4 on: August 29, 2013, 03:23:55 PM »
Kung 1pair ng JBL PRX625 + 1pair ng 600watts sub(2400watts peak) sa covered court w/ fullband na nakaline-in sir?

Total System Power = 4200 watts

Required SPL for rock concert = 100 decibels

Estimated Coverage area outdoor = 1,157.28 square meters

Estimated Venue Capacity = 1,389 seats

Ang sukat ng NBA basketball court ay 436.626 square meters na 524 seats ang kasya.


Note: para sa rock concert, dagdag pa dapat ng 2nd and 3rd pair single 18" sub... Ang power ng 1 pair PRX625 ay 3000 watts. Ang power ng 1 pair sub ay 1200 watts lang. Dapat pantay o mas mataas ang power ng sub sa PRX625.
« Last Edit: August 29, 2013, 06:14:05 PM by Tarkuz Toccata »
The common saying that the ears are the ultimate judge in music production? To some extent they certainly are, but as we are now aware, they can also be fooled extremely easily. -- "How The Ear Works" (2011) by Emmanuel Deruty


Offline Xelly

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Re: Covering open or close basketball court (sound system thing)
« Reply #5 on: August 29, 2013, 08:12:13 PM »
Total System Power = 4200 watts

Required SPL for rock concert = 100 decibels

Estimated Coverage area outdoor = 1,157.28 square meters

Estimated Venue Capacity = 1,389 seats

Ang sukat ng NBA basketball court ay 436.626 square meters na 524 seats ang kasya.


Note: para sa rock concert, dagdag pa dapat ng 2nd and 3rd pair single 18" sub... Ang power ng 1 pair PRX625 ay 3000 watts. Ang power ng 1 pair sub ay 1200 watts lang. Dapat pantay o mas mataas ang power ng sub sa PRX625.

Hindi ba sir yung 1500watts ng PRX625 ay peak? Hindi ko makita yung rms rating nito sa internet eh.

Offline Tarkuz Toccata

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Re: Covering open or close basketball court (sound system thing)
« Reply #6 on: August 30, 2013, 01:24:53 PM »
RMS ang 1500 watts ng PRX625 pero hindi nga malinaw sa spec sheets nila.

http://www.jblpro.com/catalog/general/Product.aspx?PId=362&MId=3

http://www.jblpro.com/BackOffice/ProductAttachments/JBL_PRX625%20v8.pdf

Sa spec sheet ng Eon, ang nakalagay na power ratings nila ay continuous at peak, except Eon 515XT na 625 Watts (525 + 100) lang ang nakasulat at hindi binanggit kung continuous o peak... Ang mas mababang modelo Eon 515 ay 450 W (350 + 100) continuous, 900 W peak.

http://www.jblpro.com/catalog/general/ProductFamily.aspx?FId=70&MId=3

Sa spec sheet ng PRX625, ang nakasulat na power rating ay 1500 W (3 x 500) pero hindi binanggit kung continuous o peak. Mas mataas na modelo ito kesa Eon 515XT. Kung 1500 W peak ang PRX625, dapat 750 W (3 x 250) continuous ito. Mahirap isipin na ang power na nagdra-drive sa 15" woofer ng PRX625 ay 250 watts lang, kung sa 15" woofer ng mas mahina na Eon 515 nga ay 350 watts na...

Sigurado ako RMS yan, hindi peak.



Dagdag ko lang: Ang PRX625 ay dual 15". Ang sub na babagay dito ay dual 18", hindi single 18".
« Last Edit: August 30, 2013, 02:00:03 PM by Tarkuz Toccata »
The common saying that the ears are the ultimate judge in music production? To some extent they certainly are, but as we are now aware, they can also be fooled extremely easily. -- "How The Ear Works" (2011) by Emmanuel Deruty

Offline Xelly

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Re: Covering open or close basketball court (sound system thing)
« Reply #7 on: August 30, 2013, 03:45:57 PM »
RMS ang 1500 watts ng PRX625 pero hindi nga malinaw sa spec sheets nila.

http://www.jblpro.com/catalog/general/Product.aspx?PId=362&MId=3

http://www.jblpro.com/BackOffice/ProductAttachments/JBL_PRX625%20v8.pdf

Sa spec sheet ng Eon, ang nakalagay na power ratings nila ay continuous at peak, except Eon 515XT na 625 Watts (525 + 100) lang ang nakasulat at hindi binanggit kung continuous o peak... Ang mas mababang modelo Eon 515 ay 450 W (350 + 100) continuous, 900 W peak.

http://www.jblpro.com/catalog/general/ProductFamily.aspx?FId=70&MId=3

Sa spec sheet ng PRX625, ang nakasulat na power rating ay 1500 W (3 x 500) pero hindi binanggit kung continuous o peak. Mas mataas na modelo ito kesa Eon 515XT. Kung 1500 W peak ang PRX625, dapat 750 W (3 x 250) continuous ito. Mahirap isipin na ang power na nagdra-drive sa 15" woofer ng PRX625 ay 250 watts lang, kung sa 15" woofer ng mas mahina na Eon 515 nga ay 350 watts na...

Sigurado ako RMS yan, hindi peak.



Dagdag ko lang: Ang PRX625 ay dual 15". Ang sub na babagay dito ay dual 18", hindi single 18".
Copy sir! Salamat!
Ps. PaPM ng price ng dual 18 nung Peavey. Thanks!

Offline gandydancer123

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Re: Covering open or close basketball court (sound system thing)
« Reply #8 on: August 30, 2013, 04:04:19 PM »
wow daming good info dito great read! in
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Offline Tarkuz Toccata

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Re: Covering open or close basketball court (sound system thing)
« Reply #9 on: August 30, 2013, 05:12:40 PM »
Ps. PaPM ng price ng dual 18 nung Peavey. Thanks!

PM sent. Thanks!  :-D
The common saying that the ears are the ultimate judge in music production? To some extent they certainly are, but as we are now aware, they can also be fooled extremely easily. -- "How The Ear Works" (2011) by Emmanuel Deruty