Might as well piggyback on your NAD thread.
Just picked up a used Amp 1 Iridium!
Gave it a spin through my BluGuitar Nanocab and Fatcab at home volumes!
I haven't properly compared it to the Mercury yet but initial impressions:
The feel of the Iridium is very different. "More modern" is just the best way to describe it. It's more immediately responsive, snappier, less sizzly. The gain is more tuned towards humbuckers where the ME seems to have a lot more gain at similar settings, and far more aggressive bright cap.
- The clean channel is similar to ME, but as if you gave it a more polished touch. Like everything, there's less sag to it and less hair with higher gain settings.
- The Iridium Vintage channel is perhaps the most similar to the ME Classic channel. Just a nice Marshall style tone.
- The IR Classic can be similar to its Vintage channel unless you crank the Tone knob higher. Then it gets a distinctly different tone that I feel I can't quite get out of the Mercury.
- I'm still not sure of the Modern channel. Like on the Mercury, it's my least favorite, even though it sounds good. There's just a certain honk to the mids that I'm not sure I like, even though it gets much more scooped if you turn the Tone knob. I'm interested to compare this to the Mesa Mark V and see if I can get into similar territories.
EQ knobs seem different. The ME seems to get a lot more midrangy a lot easier if you turn up the Mid knob, whereas the treble/presence comes on stronger on the IR.
The Iridium just seems much more in control than the more raw and unruly Mercury.
The Iridium works much better for my 7- and 8-string guitars. The low end and faster response suit those really well.
I've tried this amp a couple of times before and maybe the cab wasn't right or I was trying to dial it too much like the Mercury, but I didn't like it. With the BluGuitar cabs at least I had a great time with it.
One minus on the Iridium is that it doesn't have the jack labels printed on the top panel.
Next up I have to get the Nanocab back on the floor and build some crazy dual amp rig...