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2nd November 2006, 07:07 PM
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#1 |
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diyAudio Member
Join Date: Apr 2006
Location: vilnius
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op amps for cd
Hello,I want to tweak my Philips cd930 http://eddie.dyec.com.tw/diy-demo/au...lips_cd390.htm
i don t now what op amp to used ad826 ,opa 2604, lm6172 or ne5532-reccomended in link.What you can to say about these or other op amps sound?what op amps do you like and what? |
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2nd November 2006, 07:45 PM
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#2 | |
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Magneto the Gravity Man
diyAudio Member
Join Date: Mar 2005
Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)
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Re: op amps for cd
Quote:
The only opamp to use is LM4562 from National Semiconductor. It is so new it is only available as samples at the moment but it blows the socks of any other including OPA627's. Andy |
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3rd November 2006, 07:48 AM
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#3 |
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diyAudio Member
Join Date: Apr 2006
Location: vilnius
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thank you,but it is very new .can I to search this product? in this site http://www.national.com/pf/LM/LM4562.html
150 dollars-1? it s very expensive or I don t understand? |
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3rd November 2006, 08:54 AM
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#4 |
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diyAudio Member
Join Date: Jul 2004
Location: Scottish Borders
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Hi,
the $150 is for an evaluation board. The opamps come in the $2 to $10 range depending on how many and what packaging you require. Some specification! 55MHz and unity gain stable. 20V/uS 2.7nV/rootHz 600ohm load driving upto 10Vrms -134db distortion minimum 10 to 12mA Iq, quite warm. Is that for the pair in the chip or per opamp? Who's to be first to tell us the sound matches the spec?
__________________
regards Andrew T. |
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3rd November 2006, 08:55 AM
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#5 | |
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Magneto the Gravity Man
diyAudio Member
Join Date: Mar 2005
Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)
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Quote:
$150 is for the evaluation board not opamps. Use the samples button to order 3 free samples ( you pay postage ) Andy PS. you may have to set up a company name for yourself in order to qualify for samples |
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3rd November 2006, 09:02 AM
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#6 | |
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Magneto the Gravity Man
diyAudio Member
Join Date: Mar 2005
Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)
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Quote:
Marantz CD63 & CD67 mods list After this page approx. Andy |
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