Amplifier power test @ kill's place

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terrordrome
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Odg: Amplifier power test @ kill's place

Post by terrordrome »

Moguće da imaš clipping i na 30W ako pojačalo nema dobro napajanje... koji amp je u pitanju i na šta ga misliš spojiti?
Prati napon napajanja!
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Odg: Amplifier power test @ kill's place

Post by BlackT »

Pojačalo je ovo ispod slike avatara, taj model
Napajanje je 14,2-3V kada lagano svira, a kada odvrnem do kraja 12 do 12.5V (puno skače kazaljka pa neznam točno) to je na pojačalu, na akumalotru je nešto više, ali ni na altenatoru ne prelazi iznad 13 kada do kraja pojačam. Ugl. o tome drugi put

Dizalo mi je živce što sub na maloj snazi nerazgovjetno svira, istekla mi reg. na autu,puno posla u školi pa sam to ostavio sastrane.
I došao mi jutros prijatelj da mu jaču muziku uvedem
On u autu ima moj prvi sub
http://www.cice.com.hr/novo/index.php?topic=40819.0
Točno taj
I sada on je to spojio na HU i pita me gdje da nabavi veći sub da jače svira  :D  :D  :D  :D
Sad da mu dokažem da mu za to treba pojačalo da jače svira, spojim ga na ovaj moj GZ
I spojim ja to na bridge,LPF na 150 Hz,bass boost do kraja,level na min,HU na max
Lagano svira i ja odvrćem level prema maximumu.Računam na cliping već na 1/3 levela, ali malo sutra tek kada sam level odvrnuo do kraja u nekim djelovima pjesme je bilo da sub jedva malo pucne  :O
Nisam mogao vjerovati  :haaa:
Spojim instrumente i lagano frenfecije 30,40,50,60,70 Hz
Na 40 Hz izlazi 52 V i 8.5 A dakle 440W, na višim frekfencijama snaga ostaje ista samo se amperaža povećava,a napon smanjuje
Sada neznam jeli to RMS ili peak od pojačala, pošto sub nije moj,a deklariran je na 300W max. Nisam ga dugo držao 10-20 sec

Samo nemogu vjerovat da je level i HU do kraja i da nema clipinga
Vjeorvatno je u mene na phase nerazgovjetno svira na malim snagama zato što je u 30L, Ovaj JBL je u većoj kutija pa vjerovatno zato može više primiti


Ugl. 440 W na 12.5V, ja zadovoljan
Sad kako provjerit dali je to RMS ili peak?
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BOKY
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Odg: Amplifier power test @ kill's place

Post by BOKY »

najpuzdanije bi bilo pogledati valne oblike na osciloskopu...
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BlackT
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Odg: Amplifier power test @ kill's place

Post by BlackT »

A to nemam, jedino da od zvučne kartice napravim?
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Odg: Amplifier power test @ kill's place

Post by S@ki »

s certifikatom ili bez nekako ne vjerujem u situaciju da pojačalo ne clipa sa gainom na full, hu na full i bas boostom na full kako je napisao. baš bi volio vidjet valni oblik na izlazima :)
BlackT...jesi li siguran da znaš što je cliping i kako se manifestira?
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Odg: Amplifier power test @ kill's place

Post by davor-ri »

BlackT wrote: ali malo sutra tek kada sam level odvrnuo do kraja u nekim djelovima pjesme je bilo da sub jedva malo pucne  :O
Samo nemogu vjerovat da je level i HU do kraja i da nema clipinga
eo kako čovjek prepoznaje clipping..po pucanju bang bang :D
PB: 152,9dB     
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Odg: Amplifier power test @ kill's place

Post by S@ki »

spidonja... nije tebi namjenjeno pitanje :D znamo da ti znaš a pokušavamo čovjeka spasit da ne uništi i pojačalo, i sub i instrumente i sebe i susjedovu babu :D
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Odg: Amplifier power test @ kill's place

Post by the_bebe »

ja mislim da tu nema pomoći... :respect:
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Odg: Amplifier power test @ kill's place

Post by S@ki »

Ajmo pitanje za one koji žele znati više :)
Što je , odnosno čime je određena, vrijednost na ovim "ravnim" dijelovima signala na osciloskopu i grafu?
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Odg: Amplifier power test @ kill's place

Post by the_bebe »

Određena je napajanjem... :respect:
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Odg: Amplifier power test @ kill's place

Post by S@ki »

onim koje dovodiš na pojačalo (12V) ili ?  :)
Last edited by S@ki on Thu Mar 22, 2012 1:43 pm, edited 1 time in total.
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Odg: Amplifier power test @ kill's place

Post by the_bebe »

naravno da ne...ovisi o njegovom napajanju jer već i ptice na grani znaju da pojačala ne rade na 12v nego na puno više...e pa kad to njegovo napajenje nemože dati više struje pojačalo počne sa clipingom... :respect:
Pa nisi valjda mislio da neznam... :lol: :lol: :lol: :lol:
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Odg: Amplifier power test @ kill's place

Post by S@ki »

velim ja da vi riječani niste normalni :lol: bebe sjedi 2, dobiš bombon :D
više neznam kako potaknuti konstruktivne rasprave pa možda pitalice pomognu :lol: uostalom, pričali smo o tome na kavi :D

čekamo BlackT-a da se oglasi :D
Last edited by S@ki on Thu Mar 22, 2012 1:48 pm, edited 1 time in total.
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Odg: Amplifier power test @ kill's place

Post by the_bebe »

Šta samo 2 profesore??? :'( :'( :'(
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Odg: Amplifier power test @ kill's place

Post by S@ki »

jadno nam je znanje ak sam ja profesor :lol:
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