The Qutest LPS question peaked my interest. I texted my local store (Audio Advice) asking if he (Jon, the store mgr) recommended the iFi power elite for my Qutest (as they sold the power elite), thinking I would order one.
Jon didn’t, but recommended the Sbooster with the MKII upgrade from upscale audio. To recommend a product you don’t sell is impressive but also demonstrates the Sbooster to a significantly better choice based upon the experience of his customers.
I am ordering one for my Qutest.