Beautiful is a good way to describe the old Pioneers. They were absolutely a work of art. I got mine in the late 70's while in the US Navy (Yokuska, Japan) serving aboard the USS Midway; which is now a floating museum in San Diego, awesome to visit BTW. Also during that era Marantz, Kenwood and even Techniques had some good models. They all had a hugh sense of tangibility...which still exists to this day. Trading for new tube amp is inviting, but giving up the SX-850 will be tough to do.