With copper sleeves over a Puron, I am hearing a slight increase in volume and a more forward presentation.Ā Instruments and voices sound closer to me, and bigger in every sense: height, width, and depth.Ā And yes, more information seems to translate into more detail.Ā This might not be everyone's cup of tea!
It took about 20 seconds of listening before removing a copper sleeve off a High Fidelity MC-0.5 Basic.Ā It was as if the sleeve was a large thick blanket over the speakers.Ā Exactly the opposite of what I am hearing with Puron.
I have the sleeves on two Purons, plugged into a Synergistic Powercell 12.Ā And HFTs on the ends...

