It didn't help my system any. I was running the Rega Apollo with the Monarchy Audio tube DAC with a custom 6SN7 tube line stage preamp. The system sounded more detailed but still musical and smooth with only the Apollo feeding tube preamp. So I ended up selling the Monarchy DAC.
If I didn't have the excellent tube line stage the results might have been different.
If I didn't have the excellent tube line stage the results might have been different.