I bought these because when I bought my CT Sounds Tropo 18", I overlooked the fact they had 12 awg terminals. These were perfect to upgrade to allow me to connect each voice coil in parallel with 8 awg ofc wire and have only one set of wires running to the amp while also having sufficient gauge wire. I have not tested the difference between the two terminals but as they are made of the same materials, I would make the assumption on low power applications there would be no difference in how they work or perform that wouldn't be mitigated by the upgrade in wire gauge.
*4 awg terminals on left, 12 awg on the right*