Building a cable from sound system to "mic in"

[kenaycock]

Any updates on this headset buddy line level to mic level adapter shared earlier in the thread?
https://www.amazon.com/Headset-Buddy-Li ... 00OAW85ZG/

On a whim, I tried plugging line level directly in to the mic input on my lappy. Much less complicated than plugging into the TRRS jack on a phone. Without attenuation, the distortion is... lovely.

This also looks like a possibility:
https://www.amazon.com/Movo-MV-RC300-Mi ... 073HR6SY4/

[russellhltn]

If you're using a laptop, I'd recommend the Sabrent USB External Stereo Sound Adapter for Windows and Mac.. That and a plain old 3.5mm stereo cable will work fine. It avoids a whole bunch of ifs, ands, buts, and maybes.

But before placing the order, dig into the hardware settings in the control panel. You find find a "mic boost" setting. If so, set it to 0dB and try again.

At $8, it's also one of the cheapest options.

[Mikerowaved]

I tried the Headset Buddy cable, but found it had too much attenuation for the phones we were using. I'm working on a custom L-pad that will bring the level approximately up to that of the Tabernacle Choir when they come on, but still have a reasonable source impedance for the phone. I'll let you know what I come up.