Ne 5532 15+15 or 18+18

east electronics · 26th January 2010, 10:04 AM

i am working with some 5532 applications
some claim that supply of 18+18 volts will provide more headroom or so
any ideas for example in a RIAA application what is wise to use ????

opinions please

thank you very mych sakis

AndrewT · 26th January 2010, 11:44 AM

or 20+20V or 20.9+20.9V?

Mooly · 26th January 2010, 12:10 PM

You have to ask yourself what in reality is going to cause an RIAA preamp to run out of headroom... answer, some vinyl defect/scratch etc... so if it clips on 15 volt rails there's a good chance it would on 18 or 22 as well.
If you stick to 18 volts you at least can use different devices, use 22, the max and you are more limited.

Ola · 26th January 2010, 01:43 PM

Opamps tend to sound different at different supply voltages and it has nothing to do with headroom. Last years though it's been more a "objectivist" talk here: datasheets, modelling in software etc.

26th January 2010, 10:04 AM	#1
east electronics diyAudio Member Join Date: Jan 2006 Location: Athens GREECE	Ne 5532 15+15 or 18+18 i am working with some 5532 applications some claim that supply of 18+18 volts will provide more headroom or so any ideas for example in a RIAA application what is wise to use ???? opinions please thank you very mych sakis __________________ SERVICE ΕΝΙΣΧΥΤΩΝ ΚΑΙ ΙΑΠΩΝΙΚΩΝ ΜΗΧΑΝΗΜΑΤΩΝ ΗΧΟΥ www.eastelectronics.gr

26th January 2010, 11:44 AM	#2
AndrewT R.I.P. Join Date: Jul 2004 Location: Scottish Borders	or 20+20V or 20.9+20.9V? __________________ regards Andrew T.

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26th January 2010, 12:10 PM	#3
Mooly diyAudio Moderator Join Date: Sep 2007	You have to ask yourself what in reality is going to cause an RIAA preamp to run out of headroom... answer, some vinyl defect/scratch etc... so if it clips on 15 volt rails there's a good chance it would on 18 or 22 as well. If you stick to 18 volts you at least can use different devices, use 22, the max and you are more limited.

26th January 2010, 01:43 PM	#4
Ola diyAudio Member Join Date: Dec 2002 Location: Estonia	Opamps tend to sound different at different supply voltages and it has nothing to do with headroom. Last years though it's been more a "objectivist" talk here: datasheets, modelling in software etc.