Depends on what you feel the biggest breakthroughs have been. For me the Avalon Eidolon speaker system was the last gotta have it breakthrough product. Magico systems could be pushing the envelope though.
Recently: Richard Foster's article in the back of issue 45 of Hi>Fi+ shows a great deal of promise for digital media. He remarks briefly on his hearing a sample of 352.8kHz of DXD in an extremely well voiced in room at Bert van dr Wolf's Northstar Consult studio (www.northstarconsult.nl).
On the analog side the development of the magnetically driven (spindled) turntables may be a worthwhile advancement over my ridiculously inexpensive Well Tempered/home brew suspension setup.
Recently: Richard Foster's article in the back of issue 45 of Hi>Fi+ shows a great deal of promise for digital media. He remarks briefly on his hearing a sample of 352.8kHz of DXD in an extremely well voiced in room at Bert van dr Wolf's Northstar Consult studio (www.northstarconsult.nl).
On the analog side the development of the magnetically driven (spindled) turntables may be a worthwhile advancement over my ridiculously inexpensive Well Tempered/home brew suspension setup.