as marcus mentioned, stay away from it like the plague lol
but my 3 channel dual rec is tits! I just use relatively low presence settings, does the trick! I think the dual rec is possible the smoothest amp EVER! no doubt!
..or use the orange channel. I personally use that more as my main rhythm channel. The red is amazing as well, just keep the presence under 9o'clock and you'll be fine.
That's one of the differences that often confuses the 2channel users. They try a 3channel head out using the same settings they use on their 2channel heads, like the Sneap settings with the presence at 12:30, and then say that the 3channel heads are harsh and fizzy sounding

Yep, that's because they had dialed waaay too much presence in on the red channel.
Yep, the red channel on a 3channel head is not like the one on a 2channel head. The orange channel on a 3channel head is more like the red channel on a 2channel head, in a nutshell that is.
I remember this one guy giving a grand shootout between a 2channel and 3channel heads, having them both in the same room with the same cabs. Then he starts out by saying that he dialed in the same settings to both of the amps, which were his 2channel head settings, and starts playing. Yep, he hated the way the 3channel head sounded, but was it because the amp sounds bad, no because he just had horrible settings on the 3channel head.
I personally think that this is where a lot of that "2channel heads are faaar superior to 3channel heads" comes from. People not knowing about the super aggressive presence control on the red channel, the dialing in a lot of presence and gain, wondering why it sounds so harsh and thin.