Tannoy includes ground terminal to further optimize performance by way of reducing RFI. The intent is to keep RFI away from the voice coils. There are several ways to ‘ground’ …I’ve tried both mechanical and mineral based grounding. In my system, I found mineral (ores) based grounding to be most effective in further enhancing the performance.
After connecting a pair of Entreq boxes to Tannoy’s dedicated ground yielded a new order of magnitude in sonic improvement - the bleeding of RFI noise to grounding box allowed me to hear nuances more clearly. The detail retrieval is further improved whilst remaining natural and organic in presentation.