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
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Is this a real TDA1541A S1 2 double crown
Need your help to identify is this original Philips Holland? This is second hand price is 350 USD is it worth?
Need your help to identify is this original Philips Holland? This is second hand price is 350 USD is it worth?
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i thought there were some early batches with double crown s1...
Nevertheless the bottom crown looks a different print
Nevertheless the bottom crown looks a different print
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.
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.
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.
www.nxp.com/acrobat_download2/various/DIGITAL.pdf
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Just when you thought it couldnt get higher... Luckily free shipping!
http://www.ebay.de/itm/2-x-Philips-...dio_Zubehör&hash=item3cbb9dd535#ht_1555wt_922
http://www.ebay.de/itm/2-x-Philips-...dio_Zubehör&hash=item3cbb9dd535#ht_1555wt_922
I sold a few of these. never had a complaint. They look exactly as in the Marantz CD7.