That said all 6 have a long life, being conservatively-under-run in respect of anode voltage and current, 10000hrs+ not a problem................
http://www.quadrevisie.eu/quadrevisie.html#14
If one were compiling a of favorite cars whether affordable or completely off the stratosphere, would the likes of Aston Martin, Rolls Royce or Ferrari be left off?
Why no NAIM?, amongst a list with a lot of very average tuners indeed?!!
Not in any particular order
1.Leak Trough Line
2.Quad FM2/FM3
3.Revox (the one with about 80 buttons)
4.Any Magnum Dynalab, but the affordable MD90T
5.Naim NAT01/NAT02
6.Linn Kremlin
7.Yamaha CT-7000
8.Accuphase T-100
9.McIntosh MR78
10.Meridian 104/504.
https://forum.audiogon.com/discussions/your-favorite-top-10-tuners-all-time