Magnepan 1.7s in a 10x13' dedicated room?

Given the size of your room, listening volume and music choice, you shouldn't have any problems. I tried a 60watt/channel Cambridge integrated on my 1.7's in a much bigger room at higher volumes and didn't have any problems. Given the size of your room, why not get the 12's?

I agree with Zd542. WIth your listening tastes and the room size, *plus* the way Maggies like tubes (assuming your amp has 4-ohm taps), your 35 wpc should be OK.

Consider: the Maggies are rated at 86 dB at 1 meter distance with 1 watt input. That's for a single speaker in an anechoic chamber. When you add the second speaker, it brings it up to 89 dB. When you add the reflections of the room (esp. a smaller one), you add at least 3 more dB. You should be getting close to 90 dB at 1w input at your listening position, especially since you get less volume dropoff from a line source (e.g., Maggies) than a point source (most dynamic speakers).

From there, you double the power required to raise loudness in increments of 3dB. By the time your 35 wpc amp is maxing out, it should be making around 115 dB at your listening spot, which is LOUD.

@Linesource & Johnny- You might want to review this paper, regarding Decibels, apparent loudness levels and power requirements: (http://www.gcaudio.com/resources/howtos/voltageloudness.html)

Rodman9999, what's your point?

To double the apparent loudness of a system by 2 times(10db) takes 10 times the power. 3db is about a 1.23 times increase in loudness and the increases are not linear, but- logarithmic. (http://www.cs.sfu.ca/~tamaras/digitalAudio/Linear_vs_logarithmic.html) (http://www.cs.sfu.ca/~tamaras/digitalAudio/Decibels.html) 115db, from Maggies with 35WPC? That'll be the day!