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Old 06-20-2021, 01:04 AM
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SprintBob SprintBob is offline
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Quote:
Originally Posted by SprintBob View Post
Kevwind, you pointed me in the right direction. Plugged a dynamic mic into Channel 1 and the VU meter came to life. Pulled out an inline external 48V phantom power supply and ran the KM184 through it to Channel 1 with the Axis 48V power off and the VU meter again worked. There must be a bad transformer in the Axis that is affecting 48V power on both channels even though when I switch the Axis 48V power on the indicator light comes on. Looks like it's going back to Soundpure for exchange or refund for sure on Monday morning.

Thanks!
Quote:
Originally Posted by Glennwillow View Post
Hi Bob,

I know nothing about the Axis or the Scarlett 2i4 interface, but the two parts above where I added bold text are areas that may have an effect.

Having the input on your Scarlett all the way down at 0 may not be letting any signal through at all. You might try turning the level on the Scarlet up a little, maybe to 9 o'clock to see if any signal comes through.

Also, on the Axis, if the input level is at -15 dB, you will probably have to turn that up some, I would suggest perhaps 12 o'clock to get signal into your mic preamp.

I could be all wet here, but it seems like no signal could get to your preamp and even if there were, no signal can get through the Scarlet at your current settings.

As Derek pointed out, until signal flows through the preamp, you may not see any movement of the Axis meters.

These different settings might be worth a try... If you do start to get a signal through your preamp and interface into your DAW, then I would turn the input level on the Scarlett down as much as you can to minimize input noise on that preamp. However, you may not be able to go much below 9 o'clock.

With my preamps, my input level on each channel is at about 12 o'clock, my output level is at about 3 o'clock; on my interface the input level is at about 9 o'clock for each channel.

Thanks, Glenn
Thank you Glenn. I think you missed my response to Kevwind above. The -15 dB adjustment I noted on the Axis is not the mic gain output but the pad gain control and Sebatron recommends starting out at the setting I referenced. Setting the Scarlett gain level to 0 was also a common recommendation I found in a lot of YT videos on running a preamp through an audio interface with the interface input connection set up to receive a line level input but note I did try raising that gain level too and it had no effect.

I’m just glad I found the issue with 48v power supply not working on the Axis (even though the indicator lights were on). I knew it had to be something obvious.
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Last edited by SprintBob; 06-20-2021 at 01:09 AM.
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