The Niagara 1200 that I own doesn’t , in the least, restrict dynamics in my system. Quite the opposite. My system is much more responsive with it and scales effortlessly. It’s so quiet, I can hear deep into recordings and hear more of what’s going on with the music.
The music starts sooner and is there’s simply more to it. The Niagara is one of the best investments I’ve made.
Having said that, I was giving the Puritan 136 and 156 serious consideration until I saw the pricing. MSRP for the 136 is €995 and the only dealer I could find in North American was a Canadian one who wanted about $1500 for it, which is what the 156 should have been priced at, given the currency exchange rate but there’s always a middle man to contend with. That was about a year before I got the Niagara so things may have changed.
Researching as much as I could on the 1200 vs the 1000, I came across an audio blog site where someone had both units and the 1200 is not just a 1000 with an extra outlet. It’s a completely different animal.
All the best,