Balanced 1 4 Jack Cable
They are often refereed to as trs or tip ring sleeve.
Balanced 1 4 jack cable. However the 1 4 trs can also be used for balanced mono signals. The single cable on the right is a typical unbalanced 1 4 cable. Balanced cables can also be 1 4 as well. 1 4 to xlr cables are typically balanced cables with a ground pin and would act in the same way as a full xlr or trs cable.
Great for stage studio commercial sound systems. The most popular type of balanced cable is a typical microphone or xlr. All focusrite 1 4 inch jack inputs and outputs are mono balanced. Shop pro audio 1 4 trs balanced cables at parts express.
In the image below all the cables on the left are balanced. If you examine a microphone xlr cable you will notice that it too has three conductors. Online shopping from a great selection at electronics store. If you are running an 1 4 cable that is trs then you are utilizing a balanced cable that is designed for longer runs which is likely why you are not getting noise from a balanced device to a speaker.
Balanced cables have two rings on the end of the connector and are often referred to as trs tip ring sleeve cables. Balanced cables are far better at rejecting interference noise than unbalanced cables.