x RELIC x
Headphoneus Supremus
So, not worth using then?
Well, you may find benefits from it but it won’t eliminate EMI from a cellular signal. EMI can even enter through the headphone cable (which acts like an antennae) and you can hear the beeps/bops/clicks, which is different from RF noise causing noise floor modulation which doesn’t sound like noise but rather added brightness through a wired connection from the source. The way to definitively check if your source is adding noise floor modulation on the USB input is to compare with the optical input. If optical sounds smoother/warmer then the USB is passing RF noise through the cable.
However, come to think of it, I haven’t read much on the Hugo2 thread about people experiencing EMI from cellular phones like in the Mojo thread, and I haven’t tested it myself. If you have access to a Jitterbug you should test it and let us know your findings.