Hello SarahMP99,
I don't know the dimensions of the Samson mic and the elgato mount in detail.
According to the data sheet of the Proel spider, mics with a diameter of 44 to 48 millimetres fit. The Mic specifies a diameter of 55 mm, but that must mean the capsule.
The necessary thread adapters for mounting on the elgato should be included.
I hope this helps you.
Greetings
Sani

I use the Shock Mount and the Samson micro, but not the Elgato wave arm. As it stands, the wave arm has enough accessories in the form of adapter screws that it can be securely mounted on the Elgato wave arm. These connections are standardised and should definitely work. However, the mic is very thin and does not fit at all in the shock mount. The mount is made for thicker mics. I also don't think you need a shock mount with the Q2U because of the acoustic interference, just because it looks cool and professional. I would screw the Q2U directly to the Elgato wave arm with the supplied mic holder. That fits perfectly.