Found this olde thread when I was searching for whether or not Lavricables are worth it. I bought some C3 Cables for my HD650 that I use at home and it blew my mind how much of an improvement they made, so I thought about springing for the Lavricable Grands for the LCD-3s I'm using at work... just so so pricey.
https://www.c3audio.com/store/p2/Sennheiser_HD-650%2F600_Headphone_Cable_%7C_High-Grade_UPOCC_Wire.html
I'm running those from the balanced outputs on a Sony PHA-3 and they are clearly superior to the stock Sennheiser cables. I was expecting a marginal difference, but I am no longer a cable skeptic now.
https://www.c3audio.com/store/p2/Sennheiser_HD-650%2F600_Headphone_Cable_%7C_High-Grade_UPOCC_Wire.html
I'm running those from the balanced outputs on a Sony PHA-3 and they are clearly superior to the stock Sennheiser cables. I was expecting a marginal difference, but I am no longer a cable skeptic now.