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Author Topic: P3A amp 100 watts Help  (Read 29789 times)

Offline p®otocol

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Re: P3A amp 100 watts Help
« Reply #340 on: May 07, 2012, 05:52:38 PM »
try virtual dj pro

agree parang pang DJ yun pede rin parang console, like ko dun ung flanger effect :D
[nO MatTer How GiFteD yOu aRe, yOu aLonE cAnNot cHanGe tHe WorLd]

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Re: P3A amp 100 watts Help
« Reply #340 on: May 07, 2012, 05:52:38 PM »

Offline 01110011

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Re: P3A amp 100 watts Help
« Reply #341 on: May 07, 2012, 07:54:43 PM »



pwede na kaya 'to?
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Re: P3A amp 100 watts Help
« Reply #341 on: May 07, 2012, 07:54:43 PM »

Offline gorex

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Re: P3A amp 100 watts Help
« Reply #342 on: May 07, 2012, 08:06:14 PM »
puwde yan pre .magkano yan trafo sa sakura av5023?
We use negative feedback in audio amplifiers to stabilize the gain, increase the bandwidth,lower the output impedance and lower the non-linear distortion.

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Re: P3A amp 100 watts Help
« Reply #342 on: May 07, 2012, 08:06:14 PM »

Offline 01110011

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Re: P3A amp 100 watts Help
« Reply #343 on: May 07, 2012, 08:07:16 PM »
1600 bili ko originally 1750 yan ;D
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Re: P3A amp 100 watts Help
« Reply #343 on: May 07, 2012, 08:07:16 PM »

Offline Disabled

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Re: P3A amp 100 watts Help
« Reply #344 on: May 07, 2012, 08:12:16 PM »
yep pde na yan.

1600 bili ko originally 1750 yan ;D
mahal naman,
1250 lang yan dito.

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Re: P3A amp 100 watts Help
« Reply #344 on: May 07, 2012, 08:12:16 PM »

Offline j a y k e z

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Re: P3A amp 100 watts Help
« Reply #345 on: May 07, 2012, 08:36:10 PM »
yep pde na yan.
mahal naman,
1250 lang yan dito.

saan yan sis hengil? :D

Offline gorex

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Re: P3A amp 100 watts Help
« Reply #346 on: May 07, 2012, 09:33:13 PM »
sa acdc tommys o advance o eclipse? nabili?
We use negative feedback in audio amplifiers to stabilize the gain, increase the bandwidth,lower the output impedance and lower the non-linear distortion.

Offline Disabled

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Re: P3A amp 100 watts Help
« Reply #347 on: May 07, 2012, 09:35:28 PM »

Offline 01110011

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Re: P3A amp 100 watts Help
« Reply #348 on: May 07, 2012, 09:53:22 PM »
sa acdc tommys o advance o eclipse? nabili?
sa ac-dc mactan

yep pde na yan.
mahal naman,
1250 lang yan dito.
mahal talaga lahat dito ;D
buti pa dyan sa inyo
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Offline 01110011

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Re: P3A amp 100 watts Help
« Reply #349 on: May 07, 2012, 09:54:44 PM »
paano po kinocompute yung amps nito? VA lang kasi yung given  thanks :)
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Offline gorex

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Re: P3A amp 100 watts Help
« Reply #350 on: May 07, 2012, 10:23:24 PM »
ohms law: P=EI power in watts =voltage in volts x current in amps====Power=VA voltage amps=wattage
               E=P/I
               I=P/E current in amps= power in watts / voltage in volts
               V=IR  voltage= current in amps x resistance in ohms
               I= V/R = voltage in volts/ resistance in ohms
               R=V/R
               P=V^2/R=dito ata yung power sa amps voltage ng supply / impedance ng speaker ma compute.

mga master paki check nalang sa post ko or any additional info. thanks.  ;)
We use negative feedback in audio amplifiers to stabilize the gain, increase the bandwidth,lower the output impedance and lower the non-linear distortion.

Offline gorex

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Re: P3A amp 100 watts Help
« Reply #351 on: May 07, 2012, 10:36:22 PM »
R=V/I.
We use negative feedback in audio amplifiers to stabilize the gain, increase the bandwidth,lower the output impedance and lower the non-linear distortion.

Offline mund24

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Re: P3A amp 100 watts Help
« Reply #352 on: May 08, 2012, 12:47:17 AM »
yep pde na yan.
mahal naman,
1250 lang yan dito.
but looks heavygatin yung kay sis 1saging, looks convincing yung price, kasi yung iba nyan actual eh rated lang ng 150VA-200VA not true 300VA  peke yung nakalagay kasi nga commercial sya! :)
@1saging ilang kilo yan diameter center and out even height? (toroid trans.)

Offline mund24

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Re: P3A amp 100 watts Help
« Reply #353 on: May 08, 2012, 12:57:13 AM »
ohms law: P=EI power in watts =voltage in volts x current in amps====Power=VA voltage amps=wattage
               E=P/I
               I=P/E current in amps= power in watts / voltage in volts
               V=IR  voltage= current in amps x resistance in ohms
               I= V/R = voltage in volts/ resistance in ohms
               R=V/R
               P=V^2/R=dito ata yung power sa amps voltage ng supply / impedance ng speaker ma compute.

mga master paki check nalang sa post ko or any additional info. thanks.  ;)
dagdag ko lang converting VA to wattage in actual , you need a power factor to get its true power/wattage
in transformer side the safe power factor is 60%-75%, if mas effecient/higher quality/good implementation yung trafo you can get above 75%, since trasformer is inductor not a pure RESISTIVE load :)

lets take 70% power factor as example

is your transformer rated at 300VA
P(watt)= 300VA X .7
P(watt)= 210watts

Offline BhongTech

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Re: P3A amp 100 watts Help
« Reply #354 on: May 08, 2012, 06:04:56 AM »
but looks heavygatin yung kay sis 1saging, looks convincing yung price, kasi yung iba nyan actual eh rated lang ng 150VA-200VA not true 300VA  peke yung nakalagay kasi nga commercial sya! :)
@1saging ilang kilo yan diameter center and out even height? (toroid trans.)
tama kayu sir nasa 300va nga ang trafo na yan yun nga lang 220vac/50hz ito.may nagpagawa sa akin nung isang araw na av502 parehas ng trafo.




pwede na kaya 'to?
pwedeng pwede. ;)
nice +1.

Offline 01110011

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Re: P3A amp 100 watts Help
« Reply #355 on: May 08, 2012, 08:16:05 AM »
salamat sa inyu ;) +1
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Offline gorex

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Re: P3A amp 100 watts Help
« Reply #356 on: May 08, 2012, 08:20:16 AM »
@saging5 ano trannies mo sa vas at driver?  bd 139 at bd 140 yan or 2sd649 at 2sd669? thanks.
We use negative feedback in audio amplifiers to stabilize the gain, increase the bandwidth,lower the output impedance and lower the non-linear distortion.

Offline 01110011

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Re: P3A amp 100 watts Help
« Reply #357 on: May 08, 2012, 10:55:47 AM »
^bd139/bd140 :)
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Offline mund24

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Re: P3A amp 100 watts Help
« Reply #358 on: May 08, 2012, 09:24:29 PM »
salamat sa inyu ;) +1
@1saging
thanks sis :)
anyway ano yung jumper mo doon magnetic wire/copper wire ba yun? galing ah! parang overpass hehe ;D

Offline mund24

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Re: P3A amp 100 watts Help
« Reply #359 on: May 08, 2012, 09:28:45 PM »
tama kayu sir nasa 300va nga ang trafo na yan yun nga lang 220vac/50hz ito.may nagpagawa sa akin nung isang araw na av502 parehas ng trafo.
pwedeng pwede. ;)
nice +1.
makanahanap nga ng ganitong trafo :)

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Re: P3A amp 100 watts Help
« Reply #359 on: May 08, 2012, 09:28:45 PM »

 

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