Author Topic: WHICH IS BETTER, 350 watts nominal or 350 watts peak??? (Read 10046 times)

TinTopHack · « **Reply #60 on:** July 16, 2009, 11:03:03 PM »

Sana meron tayong makuhang tamang schematics. Wala akong makunan kasi. Iniisip ko kasi we will make new thread entitled "Konzert 502 Amp Dissected" Tapos pagtutulungan natin i-dissect/analize. I-identify ang weak points kung meron man then come up with ways to improve it.

This will be a "learning journey" for all of us where I am sure many of us would like to take part and where many of us would like to contribute para marami ang makakabenefit.

There was another thread related to quiescent current adjustment wherein somebody broguht up the idea of dissecting an amp. This can be a good starting point.

Philippine Electronics Forum · « **Reply #60 on:** July 16, 2009, 11:03:03 PM »

Woots29 · « **Reply #61 on:** July 17, 2009, 06:50:21 AM »

^sali ako jan hintay lang tayu ng bukas na konzert hehehe

Philippine Electronics Forum · « **Reply #61 on:** July 17, 2009, 06:50:21 AM »

amp · « **Reply #62 on:** July 17, 2009, 08:08:51 AM »

Quote from: TinTopHack on July 16, 2009, 11:03:03 PM

Sana meron tayong makuhang tamang schematics. Wala akong makunan kasi. Iniisip ko kasi we will make new thread entitled "Konzert 502 Amp Dissected" Tapos pagtutulungan natin i-dissect/analize. I-identify ang weak points kung meron man then come up with ways to improve it.

This will be a "learning journey" for all of us where I am sure many of us would like to take part and where many of us would like to contribute para marami ang makakabenefit.

There was another thread related to quiescent current adjustment wherein somebody broguht up the idea of dissecting an amp. This can be a good starting point.

ANG MAG PINOY NGA NAMAN HEHEHE

Philippine Electronics Forum · « **Reply #62 on:** July 17, 2009, 08:08:51 AM »

audiomachines · « **Reply #63 on:** July 17, 2009, 08:48:46 AM »

@tintophack and sir woots

sali din ako jan dapat lng mka gather lng ng mga materials, sa mga PIC stamp programmer jan phingi ng tulong sa pagawa ng protection ckt. he he he my mga amp ako tinitira nagdadaiagnostic muna bgo mag power ON ang amp PIC base ang protection ckt. My LCD display alam mo operating status ng amp. Imagin malagyan mo ang ating humble na 502 nyan he he he

Philippine Electronics Forum · « **Reply #63 on:** July 17, 2009, 08:48:46 AM »

Woots29 · « **Reply #64 on:** July 17, 2009, 11:14:29 AM »

walastik, amp lalagyan ng PIC hehehe

Philippine Electronics Forum · « **Reply #64 on:** July 17, 2009, 11:14:29 AM »

TinTopHack · « **Reply #65 on:** July 17, 2009, 12:29:34 PM »

OK yan para the analog and digital PIC guys can work together.

nath630 · « **Reply #66 on:** July 17, 2009, 12:34:56 PM »

Quote from: audiomachines on July 17, 2009, 08:48:46 AM

@tintophack and sir woots

sali din ako jan dapat lng mka gather lng ng mga materials, sa mga PIC stamp programmer jan phingi ng tulong sa pagawa ng protection ckt. he he he my mga amp ako tinitira nagdadaiagnostic muna bgo mag power ON ang amp PIC base ang protection ckt. My LCD display alam mo operating status ng amp. Imagin malagyan mo ang ating humble na 502 nyan he he he

sir sabi nyo bago mag power On...possible po ba sana habang nagooperate o umaandar? namomonitor nya ang status ng amp? kasi pag medyo matagal na ang andar at umiinit na doon na nasisira,nasusunog.

GO go mga masters..

audiomachines · « **Reply #67 on:** July 17, 2009, 12:57:45 PM »

yes sir at power up at monitoring ng status habang nagooperate ang amp. lalagyan ntin ng utak ung amp.

mandatory sir ang monitoring ng operating status amp lalo na kung kilowatts na output

ghomer · « **Reply #68 on:** July 18, 2009, 02:34:17 PM »

>>>>> TINATAWAGAN PO KAHAT NG EXPERTO,DALUBHASA,MAGALING AT PINAKAMAGALING <<<<<

SA LAHAT PO NG AKING NABANGGIT SA LARANGAN NG ELECTRONIC AT MGA "TALAGANG" NAKAKAALM NG TOTOONG RMS RATING NG KONZERT502A, MAAARI PO LAMANG NA IPOST NINYO ANG INYONG NALALAMAN..

MARAMI RIN NAGSASABI SA KABILANG SITE "PDVD" NA ANG TUNAY NA RMS RATING DAW NG KONZERT502A
IS,

--100WRMS L&R
--200WRMS L&R
--200-250WRMS L&R

ANO BAH TALGA ANG TOTOO???
ANG MGA NABANGGIT KO PONG RATING AY PARA SA (SPEAKER A LEFT & RIGHT) NDI KO NA PO SINAMA PA UNG (SPEAKER B LEFT & RIGHT) DAHIL NGSSHARE LANG DIN DAW PO UN SA SPEAKER A , USING PARALLEL CONNECTION..

EX: 100WRMS+100WRMS LEFT & RIGHT PAKI I THINK UNG SINASABI NA 500+5OO WATTS AY MAXIMUM NA PO.. KUNG ALN MYO RIN PO UNG TUNAY NA MAX POWER NG KONZERT502A AY PAKI POST NRIN PO..

KUNG MGKAKAIBA PO ANG INYONG PAGKAKAALM SA AMP NA TO, MAJORITY WIN NALNG PO ANG GAGAWIN KONG BASEHAN AT PANINIWALAAN.. TOO BAD KUNG GANUN!

MAHIRAP PO KASING PANIWALAAN ANG IBAT-IBANG IMPORMASYON..

amp · « **Reply #69 on:** July 18, 2009, 02:57:59 PM »

@ sir ghomer

well...

ganito lang ang naging basehan ko sa AV502a

tingnan mo na lang ang toroidal transformer nito,

the rms supply is within +/-35v to +/-36v
yan ang voltage of potential nyan

for 8 ohm spaker

Power= ExE/8 ohm

Power= 36vx36v/8 ohm

Power= 1296/8 ohm

Power= 162watts

162 watts both L/R pero pag gnamitan mo ng 4 ohms magiging double ito maging 324 watts both L/R.

Woots29 · « **Reply #70 on:** July 18, 2009, 03:49:51 PM »

para sa akin 100w + 100w lang yan hehehe

hmm sir amp, bakit iba ang formula nyu sa pagkuha ng watts?

TinTopHack · « **Reply #71 on:** July 18, 2009, 06:20:12 PM »

The way I see it the real RMS power ouput is this:

Supply voltage = +36 / -36V:

This means for a sinewave signal the maximum positive swing is +36V and the maximum negative swing is -36V (assuming rail to rail ang swing.)

This means the maximum peak voltage is 36V. The RMS value is 36 x 0.707 = 25.45V rms. This the maximum rms value you can get out of the output.

So P = (ExE)/R = 25.45 x 25.45 / 8 ohms = 80.97W rms for one channel - BUT this is assuming rail to rail voltage of +/-36V and 100% efficiency from the output stage. In reality you can not get 100% efficiency and you don't get rail to rail output swing. So maybe you just get 60Wrms to 70Wrms per channel into 8 ohms.

TinTopHack · « **Reply #72 on:** July 18, 2009, 06:40:31 PM »

Amp - I think na overlook mo lang yung +/-36V supply is actually the peak voltage of the output sinewave signal. Cheers.

audiomachines · « **Reply #73 on:** July 18, 2009, 06:55:16 PM »

ok paguluhin pa ntin 20mSec burst power he he he

Woots29 · « **Reply #74 on:** July 19, 2009, 09:25:02 AM »

^hehehhe

nalilito nmn ako ngaun

may mga nakita akong mga circuits ng amp

iba iba formula

ghomer · « **Reply #75 on:** July 19, 2009, 12:20:00 PM »

oo nga sir woots eh.. minsan iba iba rin ung formula nila sa pagkuha ng real RMS ng 502a..

hay guguluhan tlga ko.. pero sa 3.5k, pwde na toh pang bugbugan indoor and outdoor.. tama match lang ng speaker and some added stuff to maximize ung ganda ng tunog.. for hataw na to..

Woots29 · « **Reply #76 on:** July 19, 2009, 12:33:25 PM »

hmm may sakura 5023 dito na kapareho ng konzert 502

pwede natin idesect, anu gusto mo sir tintop?

Woots29 · « **Reply #77 on:** July 19, 2009, 12:34:27 PM »

3500 na konzert 502?

san mo nabili yan sir, baka yan yung may hiss...

ghomer · « **Reply #78 on:** July 19, 2009, 01:09:55 PM »

3.4 ko lang nakuha to, pero cgro mas mababa pa price nila, un nga lang xmpre kailngan rin nila tumubo..
anong hiss sir??? ala naman akong problem dito sa 502a koh??

ghomer · « **Reply #79 on:** July 19, 2009, 01:17:05 PM »

nakita ko nrin yang sakura5023 sir.. 600+600 watts daw sir.. exagerated naman maxado to compare sa 502a?? mas gusto kc sir ung front face ng 502a medjo pro ng konti ang dating.. for me lang ha.. ok na muna to sakin sir sa ngayon pang indoor/outdoor application.. pero sakin nasa bakuran dito sa tapat namin nkalagay ung special speaker koh.. bkuran-bakod-kalsada kaya nasabi ko naring pang outdoor.. bili nalng ako ng 350-400watts 12" woofer..

Philippine Electronics Forum · « **Reply #79 on:** July 19, 2009, 01:17:05 PM »

Author Topic: WHICH IS BETTER, 350 watts nominal or 350 watts peak??? (Read 10046 times)

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