Using the SOS (Akai/Roberts tube amp conversion) as a microphone preamp

[@AAWSAPRocky]

This is really cool! I just grabbed one of these preamps and want to do a conversion. This is a level beyond what I was thinking but loving the possibilities

[@erikarabie]

Definition of warm audio

[@kellymoore2062]

Hey Kyle …. Love it! Is there any way you can share your schematics for the mods you did? I would love to create my own!

[@robertbrose16]

Hey Kyle! Love this so much! What model did you mod for this? I specifically love the play using the two inputs and the tone knob. Was that stock or did you add that?

[@krissgallud9049]

Hello nice project do you have the diagram of the modifications

[@earljohnson8851]

Would love a demo on how you did this or where I can buy one from you

[@KyleReidMusic]

I have a few of these for sale on my website: www.kylesradamplification.com

[@jamiboothe]

I have unbridled interest interest in this modification. Please say more about the modification, if you did it, or someone else, and a schematic with the mods highlighted, would be too much to ask for, but I am asking.

[@KyleReidMusic]

I’ve got a couple other videos where I describe my process of converting these. And I’ve started streaming every Monday at 4 central and answering questions there. Tune in and ask and I’ll walk through the whole circuit.

[@jamiboothe]

@@KyleReidMusic Are you streaming to this KZbin channel? I will check out the other videos, thanks. I have never built a mic preamp, and yours combines other features, that are very desirable.

[@KyleReidMusic]

@@jamiboothe yep, streaming on this channel every Monday 4-5ish

[@526mileswest]

Hey there, Is the cathode follower circuit already in the amp or did you add it yourself? Are you tapping into the output from the cathode follower and straight to a 1/4" jack? I usually use the speaker outs into my sound card with stellar results, but im intrigued by the low impedance output from the cathode as you're describing. Any tips on where I can tap into the circuit to add my own would be greatly appreciated matey!

[@KyleReidMusic]

The signal comes off the cathode through a large value coupling capacitor to a 10k audio taper pot. The wiper of that pot is sent to the 1/4 output jack.

[@jasonzerafa8784]

Hey Kyle! I just acquired the full Akai M-7 Unit and I would like to have some very similar mods done. Am I able to pay you to modify it for me? Thanks