I see people speaking of the LS25 MK1 and LS25 MKII. I have the Original LS25. Was there a MK1 and Then MKII. I can only Find LS25 and LS25 MKII Information I have been trying several Tubes. Mostly 6922 and ECC88. I have tested several tubes on a tube tester I have and find the philps 6922 test the closest and can get perfect matched 4 set tubes. Sound wise they seem smooth. To me they sound better that the Audio Research Factory tubes. Has anyone else tried these. Thanks Bob
Audio Research comparison
I'd still like to get an un-biased comparison of the old Audio Research Power Amps: VT100 MkII, VT200, REF300 and the newer solid state input versions. I have heard opinions, but they have all been self serving. So I'd like to hear from someone who has really compared the two designs. Also I'm interested in the comparison of the new pre-amp designs with the older ones LS-25 Ref2 with the MkIIs.