In the iSilencer+ and iDefender+, iFi Audio has served up two USB interfaces that reduce the noise from a USB port and help unleash the potential of your desktop audio system.

With computers being used as the primary audio source, that USB connection needs some more care and attention. iFi Audio has updated its iSilencer3.0 and iDefender3.0 products with the iSilencer+ and iDefender+, which intend to enhance audio quality by getting shot of that noisy sound.
…
Read full post here:
https://www.trustedreviews.com/news/the-ifi-isilencer-and-idefender-aim-to-cure-your-desktop-audio-ills-4016624