Reference amp sound changes after refining.

Awesome_Elvis · March 19, 2018 at 4:36 AM

So, a friend and I were doing some profiles today and I noticed something strange.

After the profiling was done and the a/b comparison began, the reference amp had a certain sound that was awesome that was very different from the profile. Until I started refining, then the original sound of the reference amp changed and the profile was then more like the reference amp.

Process:
Start profile
Profile is finished
Reference amp has a certain sound that I want to capture and the profile is off
Start refining once
Check the reference amp to profile
Sound of the reference amp has now changed
More refining takes place
Profile now sounds more like the reference amp sound that doesn't sound the same as the original reference amp comparison before the refining began but after the profiling.

Anyone else? Is there a thingy I'm missing?

Michael_dk · March 19, 2018 at 7:19 AM

Could you reproduce this? It would be very interesting to hear it if you could record it!

DonPetersen · March 19, 2018 at 8:57 AM

could it be you mixed up the Reference and Profiler signals?

please check and post a recording if this is not true.

thanks

DanielRigler · March 19, 2018 at 10:18 AM

This sounds scary.
As said above: please try to record it.

Awesome_Elvis · March 23, 2018 at 5:25 AM

tried to recreate this but I didn't have any guitar mics and so I tried to use some vocal mics and was unable to recreate it. Will try again soon with typical guitar mics.

DonPetersen · March 23, 2018 at 1:01 PM

Quote from Awesome_Elvis

tried to recreate this but I didn't have any guitar mics and so I tried to use some vocal mics and was unable to recreate it. Will try again soon with typical guitar mics.

a SM57 and SM58 is essentially the same thing.
Many mics can be used for both applications - ribbon mics, LDCs

I doubt this is the issue.

Awesome_Elvis · March 23, 2018 at 4:33 PM

Quote from DonPetersen

a SM57 and SM58 is essentially the same thing.Many mics can be used for both applications - ribbon mics, LDCs

I doubt this is the issue.

the original sounded more "open"?

The hardest part with the seinhieser was getting a good sound worth profiling lol
I think it's an e835?
The other I tried using was an old ev n/d457a?

Meomy Itzme · March 23, 2018 at 6:56 PM

Have you tried checking your patch cables? a wonky cable that is on its way out can drastically alter the tone if it gets shifted.

Awesome_Elvis · March 24, 2018 at 4:58 AM

Quote from Meomy Itzme

Have you tried checking your patch cables? a wonky cable that is on its way out can drastically alter the tone if it gets shifted.

most are mogami and in good shape

This anomaly occurred at the beginning stages of all the refinements after the profiling.

The tone was so drastic that it was like the difference between a 57 on axis near the center versus a much darker mic away from the cone off axis. If that makes sense