High performance preamp suggestions..

rhythmdiy · 29th July 2008, 05:22 PM

I wanted to build a OPA 627 or LM4562 or AD815 ( The same chip used in the Jeff Rowland Synergy preamp)

But I wanted to have a look on the solid state side to conclude before jumping on the opamp based preamp... any suggestions guys...?

does anybody have an experience by using OPA 627 Op amps and then switching to the solid state?

please give your suggestions...

Nordic · 29th July 2008, 05:45 PM

Pedja Rogic's J-fet buffer for dummies.

Also has a few threads dedicated to it on the chipamp section.

That is, if you don't need voltage amplification in this stage.

jcx · 29th July 2008, 05:48 PM

lots of variable to even define the type of preamp

preamp for what sources?

level, impedance, frequency, likely RFI/EMI environment

gain(s), output levels, load impedance(s)

controls, switching, power?

29th July 2008, 05:22 PM	#1
rhythmdiy diyAudio Member Join Date: Dec 2006	High performance preamp suggestions.. I wanted to build a OPA 627 or LM4562 or AD815 ( The same chip used in the Jeff Rowland Synergy preamp) But I wanted to have a look on the solid state side to conclude before jumping on the opamp based preamp... any suggestions guys...? does anybody have an experience by using OPA 627 Op amps and then switching to the solid state? please give your suggestions...

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29th July 2008, 05:45 PM	#2
Nordic diyAudio Member Join Date: Sep 2005	Pedja Rogic's J-fet buffer for dummies. Also has a few threads dedicated to it on the chipamp section. That is, if you don't need voltage amplification in this stage.

29th July 2008, 05:48 PM	#3
jcx diyAudio Member Join Date: Feb 2003 Location: ..	lots of variable to even define the type of preamp preamp for what sources? level, impedance, frequency, likely RFI/EMI environment gain(s), output levels, load impedance(s) controls, switching, power?

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