I recently worked with Hughes & Kettner and made a long video on the Triamp Mark 3.
TLDR: It is a well built, conceptually super sound andincredibly flexbile amp.
The Triamp is being discontinued though. They are currently building the last ones and when those are gone, the Triamp will be out of production.
If I wanted one in the US, I'd probably buy one from Thomann and get a step up transformer instead of getting one from a US retailer tbh.
I had struggled to catch the bug for H&K amps for some reason. I didn't have a specific sound in mind when I though of H&K, unlike when I thought of Marshalls, Boogies, Diezels, etc. So the question for the video was: What is the Hughes & Kettner sound?
The conclusion was that H&K doesn't seem to have a sound as such but that's not a negative thing - quite the opposite. Sometimes these signature sounds can get in your way or be an acquired taste (as it was with Diezels for me). The Triamp is mega flexbile and doesn't force you in any direction. It's like a blank canvas with all the paints and brushes you may need to paint your own picture. It does feel like three different amps in one box and none feel like a compromise. Amp 1 get's you all the different flavours from crystal clean to sligth crunch, amp 2 gets your from Plexi to modded 800 and amp 3 brings the thickness and the heavies. I love using that amp.
As for retubing that someone mentioned earlier: the amp has six power tubes grouped in pairs and you can shut off pairs if you don't use them. you can use 2, 4 or 6 of the power tubes and switch that via MIDI. also, the amp automatically biases and diagnoses each pair of power tubes so you may only have to replace the pair that gives you issues and the amp will tell you. Just pop a matched pair in and you're good to go. It's a brilliantly engineered piece of kit.
On the inside the amp is very well laid out. There is a lot going on but it's not like components are stacked on top of each other like in some Mesas. Everything is accessible and clearly labeled. A qualified tech should not have any big problems working on one.
Not sure about the power tube thing but the other stuff should also apply to the older Mark 2 version of the amp. You just have fewer EQs (3 vs 6) and fewer power tubes.
