Problems with the IFI Zen Stream.. What's a better Alternative?

This is an update. I finally figured out that the problem was not with the Zen Stream at my summer location. It was with the ethernet switch. Once I replaced it, no drop-offs.

In the course of trying to solve the problem, I bought a used Ultrarendu. The purchase was not wasted since, to my ear, it is a definite improvement over the Zen Stream. That’s not surprising since it costs over twice as much new. While I am still a fan of the excellent neutrality and resolution of the Zen Stream, the Ultrarendu has a lower noise floor making details and decay better. It also has a stronger bass which is arguably more accurate. To my ear the added warmth is welcome.

Great!!! 

A question for my personal info (re comparison with the Ultrarendu) : Did you use a better power supply with your ZS or did you use the OEM one?

Thanks...

in my experience the zs benefits greatly from being powered by a l-p-s

Thanks for the update — very interesting. 

@cagma7 First I used the upgraded ifi ps. Later, in my Florida system I upgraded to lps unit I bought on ebay. In the summer house setup, that I have been comparing with the Ultrarendu,  I use a Topping P50 Linear Power Supply. The Ultrarendu uses the lps currently  supplied by Small Green Computer.