Provided it’s getting the full 48volts,
I think you’ve got the best signal-to-noise that can be obtained with your equipment.
IMO 6db-9db of-noise-reduction will be required, I would also apply another 6db-9db of dynamic-range expansion, e.g. with the free “couture” plug-in, to push down the noise-floor (by 6db-9db) when you’re not speaking.
Steve’s new & improved noise-gate is an alternative to couture.
