"Giant Killer" The things legends are made of.

There is no way that I will ever be able to be cutting edge in this hobby. But there are some "timeless" pieces of gear that will stand the test of time for years to come.
What are the giant slayers that you have had. Help me please separate the myth from legends.
Like good music, is there any gear that will live forever?
Fi X and Y, Radio Shack LX 5 Linaeum speakers, Sonic Impact T amp, Advent receiver, Grado fte+1, 47Labs Gaincard, Dynaco Stereo 70, Pioneer PD 65, I could go on and on.
Giant Killers:

Speakers: Vandersteen 2 Series, Spica TC-50, Magnepan 1.6

Digital: Rotel 855, NorthStar DAC and Transport, Benchmark DAC

Analog: AR ES-1, Rega Planar 3, Sumiko Blue Point

Amplifiers: B&K ST-140, Quicksilver Monoblocks, Forte 4

Preamplifiers: Audible Illusions Modulus, B&K Sonata MC-101, MFA Magus

I think that these components have become more popular as time has gone on. That, in my opinion, is the true mark of a legend.

Vandersteen 2 slain by Magnepan 1.6; Magnepan 1.6 slain by Eminent Technology LFT-8. $1,500.00; Eminent Technology LFT-8 slain by "stacked" LFT-8's. Used, both pairs approx. $800@
No speakers left to kill.
LFT-8's slain in midrange by 50 year old Quad 57's. Now where are we? (smile)