How to Eliminate Ground Loop Noise in Guitar Amps This should completely eliminate the ground loop noise. Tip. If you have a direct box without a ground lift switch, you can purchase a special XLR cable that has a built-in ground lift. Replace the regular XLR cable with this one and it The DR910 passive isolator is used for the electrical isolation and processing of analog 0 to 20 mA or 4 to 20 mA standard current signals. The DR910 provides electrical isolation between the control electronics and process I/O. Ground Loop Isolators. Ground loop isolators are used to break the DC circuit path for the audio shield ground circuit. Background: The head unit's preout audio section is referenced to ground (the metal outer chassis of the head unit to be more precise). As a last resort, a ground loop isolator (like PAC's SNI-1) can be installed between the receiver's preamp outputs and your amp to minimize this problem. Noise picked up by the power or ground cables. We discussed ground cables above, because that's the cause of noise more often than not. An audio isolator is a safe solution for the ground loop shown in Fig. 3. The isolator could be installed in the audio signal path either between the TV and the preamp or between the preamp and the sub-woofer. High-performance isolators should always be installed at the receive end of an interconnect cable. SMAKN USB Isolator USB Digital Isolator Isolation USB to USB Industrial Isolator HIGHLY recommended for anyone with USB ground loop noise or USB ground loop data corruption. Solved what I was afraid would be an expensive or time consuming problem in the time it took to plug it in. coax IsolaTors The 220 Coaxial Isolator provides galvanic isolation both the shield and center conductors of a standard 75 ohms coaxial system while maintaining low insertion loss for RF signals. The Isolator eliminates ground loops, and provides a degree of protection for electronic equipment from electrical transients and inadver