In a different league than the Topping. Like a great point guard, brings out the best in all the other components of the system. When picking the brains of much more seasoned members of the area audiophile club regarding the importance of preamps in a system, they all thought it to be the most important component. Borrowing a member's spare preamp (his earliest DIY effort!) provided initial evidence of that. The Constellation provided further proof.

Needed a quality preamp to truly show its potential. The Topping was good at details, but compared to the Constellation, had limited bass and the high end was bright.

Another component which improved the sound significantly when added to the system. The Constellation in turn made it sound even better.

What began my post-Roon upgrade cycle? While the change improved the sound of the system when these replaced my Volent monitors, the S3s needed more oomph than my Brinkmann was capable of. The Pass with the Bricasti directly fed into the Pass was an improvement, and the Topping allowed me to use my turntable. Borrowing a friend's DIY preamp showed there was room for improvement. The Constellation readily demonstrated what the Pass/Magico/Bricasti/E1 was capable of. There was a section of Le Sacred du Printemps where my pant legs move from the sound waves- and the sound wasn't that loud!

My Router and Roon Core are in a different room. Purchased the cable unterminated, borrowed the tools from my work network tech and cut to length and terminated 

Non audiophile network switch.

I'm somewhere in the middle on the importance of cables. What I liked about this company was their position on unequal lengths not being a factor in sound quality with their cable's properties.

Seldom used. Economical as only paying for a transport with the Bricasti doing the DAC duty.

Has network card which is Roon Ready. Its output quality was as good as the VPI with a Grade gold cartridge. However, the VPI with the E1 cartridge has it beat now. However, its sound, especially paired with the Constellation, is stellar. It's much more convenient, and, with Roon and Qobuz, has all the advantages of the digital/streaming age.

At this point, the longest-tenured component in my system. Upgraded the motor a few years back. The improved quality of the digital arm led to exploring cartridges which led to the E1. As mentioned elsewhere, analog once again is the leader when it comes to the highest sound quality.