I live in an old building from the 30s and the last refresh of the house electrical system was more than 50 years ago. At the same time, I have neighbors who like to indulge in all kinds of hobbies with pre-historic machines at the weekend. Especially when you have time to listen to music in peace, you can be sure that the loudspeakers will also make quiet whistling, crackling or crackling. So far, these disturbances have been fairly well suppressed to a tolerable level by line filters from the hardware store.
My last new acquisition (a streaming preamp) reacted so fussy to the network interference that listening was really no longer fun. So the alternative was: exchange the device, finally let the electrician lay the long planned separate line from the meter box – or try something completely different.
I had used a power supply from ifi for a problematic device some time ago, so I knew the brand and the basic idea of active interference compensation. At the time, however, I was not really convinced of the result. Nevertheless, I wanted to give ifi another chance, but I almost ordered the (expensive !!!) bar with the expectation that I would have to send it back.
In fact, the results in my application scenario are so convincing that I can only advise anyone with real network problems to try the part: Not only are all of the above-mentioned faults gone, but the system’s noise floor is also significantly lower. Incidentally, the active interference compensation affects the entire strip, but each socket has its own line filter. If you suspect that one of the system components is affecting the others on the network side (!), The bar is also worth trying.