Is this a real TDA1541A? - Page 29

batteryman · 6th August 2011, 04:50 PM

Quote:

Originally Posted by batteryman

That's a relief (for me), as the two I bought from Analog Metric show open circuit.

I can confirm that the two purchased from Analog Metric are working fine.

poynton · 6th August 2011, 06:53 PM

Quote:

Originally Posted by drlau

So many posts mention about the fake TDA1541A S1, Do you know how much is the sound different? Is it worth to upgrade?

Your question is confusing !!

There are many threads re: the sonic differences of the TDA1541A variants.

If you buy anything from the internet particularly from the Far East, beware !!

Andy

.

Rajkumar_ · 12:48 PM

Need your help to identify is this original Philips Holland? This is second hand price is 350 USD is it worth?

QSerraTico_Tico · 31st August 2011, 01:02 PM

sure is fake S1= 1 crown
S2= 2 crowns

lil' knight · 31st August 2011, 02:39 PM

Quote:

Originally Posted by Rajkumar_

Need your help to identify is this original Philips Holland? This is second hand price is 350 USD is it worth?

Seriously? $350 for a DAC chip?

studiostevus · 31st August 2011, 03:23 PM

i thought there were some early batches with double crown s1...

Nevertheless the bottom crown looks a different print

musicomputer · 31st August 2011, 05:55 PM

S1 double crowns are S1 single crowns which have been re-tested at a later date and found to meet the S2 double crown specification. This explains why the second crown printing doesn't match the first one - the second crown was printed on a different machine.

A lot of people reckon that the Holland S1 double crowns are the finest variant of the TDA1541, although I prefer the 1997 batch of Taiwan S2 double crowns.

My hunch is that these are genuine - but there are a lot of skilled fakers out there who know the high value of these IC's so buyer definitely beware. Even if they are genuine though, $350 seems over the odds to me. However, like everything else, they're worth what someone is prepared to pay for them.

QSerraTico_Tico · 07:09 PM

Quote:

Originally Posted by QSerraTico_Tico

sure is fake S1= 1 crown
S2= 2 crowns

Just read the datasheet!
TDA1541A/N2/S1 bit 1-7 EdL < 0.5 LSB
bit 8-15 EdL < 1 LSB
bit 16 EdL< 0.75 LSB
The S1 version has been specially selected to achieve extremely good performance even for small signals.

■Marked with single crown (TDA1541A/S1 only)
■Marked with double crown (TDA1541A/S2 only)

From Philips digital paper.
http://www.nxp.com/acrobat_download2...us/DIGITAL.pdf

studiostevus · 2nd September 2011, 04:25 PM

Just when you thought it couldnt get higher... Luckily free shipping!

http://www.ebay.de/itm/2-x-Philips-T...#ht_1555wt_922

JonHarrison · 2nd September 2011, 06:54 PM

I'm guessing you meant to link to ... 2 x Philips TDA1541A S2 double crown | eBay

31st August 2011, 01:02 PM	#284
QSerraTico_Tico diyAudio Member Join Date: Oct 2004	fake sure is fake S1= 1 crown S2= 2 crowns

31st August 2011, 03:23 PM	#286
studiostevus diyAudio Member Join Date: Oct 2009 Location: Brunei	i thought there were some early batches with double crown s1... Nevertheless the bottom crown looks a different print __________________ -------- TDA1541a-S2 / 6072a / MediaplayerDac -- Michell Gyrodec -- Aikido Preamp -- Pass F5 -- Audio Physic Tempo 2SE -- Yamamura Cabling

31st August 2011, 05:55 PM	#287
musicomputer diyAudio Member Join Date: Feb 2004 Location: Manchester, England	S1 double crowns are S1 single crowns which have been re-tested at a later date and found to meet the S2 double crown specification. This explains why the second crown printing doesn't match the first one - the second crown was printed on a different machine. A lot of people reckon that the Holland S1 double crowns are the finest variant of the TDA1541, although I prefer the 1997 batch of Taiwan S2 double crowns. My hunch is that these are genuine - but there are a lot of skilled fakers out there who know the high value of these IC's so buyer definitely beware. Even if they are genuine though, $350 seems over the odds to me. However, like everything else, they're worth what someone is prepared to pay for them. __________________ pure, perfect sound - forever

2nd September 2011, 04:25 PM	#289
studiostevus diyAudio Member Join Date: Oct 2009 Location: Brunei	Just when you thought it couldnt get higher... Luckily free shipping! http://www.ebay.de/itm/2-x-Philips-T...#ht_1555wt_922 __________________ -------- TDA1541a-S2 / 6072a / MediaplayerDac -- Michell Gyrodec -- Aikido Preamp -- Pass F5 -- Audio Physic Tempo 2SE -- Yamamura Cabling

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2nd September 2011, 06:54 PM	#290
JonHarrison diyAudio Member Join Date: Mar 2004 Location: UK	I'm guessing you meant to link to ... 2 x Philips TDA1541A S2 double crown \| eBay

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