The best would be to audition the 1.7i at home or a dealer with your amp, if such options are available.
Otherwise there are a bunch of threads on different forums for the 1.7i where you can ask your question.
Having said that, the specs for your amp say it's 100w @8ohms & 150w @4ohms, I'd think the majority of users would tell you that you'd need upwards of 2 or 300 Watts with the ability to nearly double up @4ohm, though I've seen people who said they're happy with lower power.
I'd feel you may want more power in the long run even if you were initially happy with what you have now, then again you may find what you have is enough.
There was a review on Hifi+ for Peachtree 220SE with 220@8ohm &350@4ohm driving Maggie 3.7i, where the reviewer was quite happy with the output but it sounded like the speakers could use even more power.
it seems like the more power capability you put through these the more they show their magic, but the final judge of that would be the listener....
Otherwise there are a bunch of threads on different forums for the 1.7i where you can ask your question.
Having said that, the specs for your amp say it's 100w @8ohms & 150w @4ohms, I'd think the majority of users would tell you that you'd need upwards of 2 or 300 Watts with the ability to nearly double up @4ohm, though I've seen people who said they're happy with lower power.
I'd feel you may want more power in the long run even if you were initially happy with what you have now, then again you may find what you have is enough.
There was a review on Hifi+ for Peachtree 220SE with 220@8ohm &350@4ohm driving Maggie 3.7i, where the reviewer was quite happy with the output but it sounded like the speakers could use even more power.
it seems like the more power capability you put through these the more they show their magic, but the final judge of that would be the listener....