I have to believe this was on Wifi, where not just the power but also heat issues often play a role in streaming.
Sure, find an iFi supply that matches the voltage and has equal or greater current.
I checked out the iFi more closely and found that it doesn't output as much amps as the cable box needs (2.67A). What I did find was this over at audiophilestyle (formerly computeraudiophile).
The chap who bought it gushes about it's performance and how it beat out a SOtM power supply that goes for 5X the price. He's bought a few already. I'm still going to give it some time and not rush into this.
All the best,