Supergreen Thread

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Anyone tried to make a Supergreen with a dual op-amp on output, instead of two single?
 
Anyone tried to make a Supergreen with a dual op-amp on output, instead of two single?
Anybody? Actually, why using two single opamps there? Is there some electronic reason (separation, for example), or just noise performance (since NE5534 has slightly better noise figure than NE5532)? Why not using some modern dual opamps, like LM4562 or OPA1678?
 
Anybody? Actually, why using two single opamps there? Is there some electronic reason (separation, for example), or just noise performance (since NE5534 has slightly better noise figure than NE5532)? Why not using some modern dual opamps, like LM4562 or OPA1678?

Hi Rankot,
understand that this was a really old project in this forum, one of the first Mic preamp projects around here. It was before the Neve, SSL and API Mic preamp projects, and before also the 500 series projects.
If you check the dates in this thread you will see that the last bulk of conversations was in 2007, that was 17 years ago, so it will be hard to get developments or even replies on a project that no one is doing for 17 years.
When I joined this forum in 2008 this project was already dead, the Green Mic Pre (more popular than the Supergreen) was phasing out and people were doing the SSL 9K preamp. Neve 1290 diy mic pre came right after.
You can do for sure any project you want, and if you want to do this you should do it but don't expect much support,
to get better support in the threads you would have to do a newer mic preamp project with active threads.

As for your questions,
Probably at the time people were doing the project with the components that were easily available,
maybe that was the reason for the 2 single OpAmps. Since then many ICs and Opamps were released, with better specs and sizes.
NE5534 and NE5532 were cheap and easy to get.
I would guess if this project was developed nowadays that it would use different components, maybe it would even be SMD.

You can use whatever you feel is appropriate or better by modern standards, follow you guts and have fun
 

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