Audio Research VT 100 MKIII


How does this amp compared to ARC amps that followed? Is the amp worth much on the used market? How was it's reliability?
sksos1
I understand the MKIII is a LOT simpler to bias, anyone have how the MKIII gets biased?
I have owned the mklll since 2001 and it has not given me one problem. 100 percent reliable. I have retubed the amp 3 times and tubes have gone up about 30 percent since I have owned the piece. I think I have spent about 2300.00 on maintenance and that was just changing tubes and having them biased from a professional. That breaks down to less than 200 a year in maintenance cost. Pretty cheap considering the amount of tubes it uses.
"03-21-15: Sksos1
I understand the MKIII is a LOT simpler to bias, anyone have how the MKIII gets biased?"

If I remember correctly, the Vt-100 has one bias adjuster for each channel. That means you set the bias for all the tubes in a channel at the same time. You make 2 bias adjustments instead of 8.
Unless it absolutely has to be an ARC, I would get a Music Reference RM200 instead. Better design, better build.