Some history from a regular on the Steve Hoffman forum:
The triode switch was first implemented commercially by Marantz in 1955 with their Model 2. Sid Smith had studied the different topologies extensively and determined that this mode gave the most satisfactory and musical sound despite cutting the available power in half. A lot of skeptics viewed any triode or triode connected amp with disdain back in the day (considered outdated at the time), so the manual only referred to this switch as halving the power to avoid damaging speakers.
Later on, with the Model 9, it was said to reduce power from 70 watts to 40 watts with "excellent characteristics" I, too, was skeptical about triode mode until I tried it on my Model 9's per suggestion of John Curl. It was a complete revelation.
In Triode mode, the sound is incredibly lifelike, rich & smooth, with no trace of harshness or artificial hi-fi brightness. Bass is actually tighter and better defined than Ultralinear.
It's the real deal. And best of all, 40 watts is still more than plenty of power for my Chartwell LS3/5A's. I'm not going back to Ultralinear any time soon!
The triode switch was first implemented commercially by Marantz in 1955 with their Model 2. Sid Smith had studied the different topologies extensively and determined that this mode gave the most satisfactory and musical sound despite cutting the available power in half. A lot of skeptics viewed any triode or triode connected amp with disdain back in the day (considered outdated at the time), so the manual only referred to this switch as halving the power to avoid damaging speakers.
Later on, with the Model 9, it was said to reduce power from 70 watts to 40 watts with "excellent characteristics" I, too, was skeptical about triode mode until I tried it on my Model 9's per suggestion of John Curl. It was a complete revelation.
In Triode mode, the sound is incredibly lifelike, rich & smooth, with no trace of harshness or artificial hi-fi brightness. Bass is actually tighter and better defined than Ultralinear.
It's the real deal. And best of all, 40 watts is still more than plenty of power for my Chartwell LS3/5A's. I'm not going back to Ultralinear any time soon!