Best Amps for Magneplanar 1.7i Speakers


I have a new pair of Magneplanar 1.7i speakers. Source material is CDs played on an  OPPO 105D disc player, and Qobuz streamed through the OPPO. Current amplification is Rogue Audio Sphinx (version 1). I have an old B&W powered subwoofer (ASW2000)  connected to the subwoofer outputs on the Sphinx. Listening room is about 15’x14’, ceiling height 9’. The sound quality is reasonably good but at times it feels a little underpowered. I’d welcome thoughts  on whether the Sphinx is enough amplifier for the speakers and what other amplifiers (integrated or pre- and power-amp combinations) might work well? Especially interested in views regarding tubes versus solid state. Budget for the amp or amp combo is $4,000 to $8,000. Thanks in advance!

kevin1956

Not sure about the use of tubes with Maggies. I had a pair of Magnepan 1.7i and I used the usually recommended Bryston Class AB amps with them. During a period in time I used a pair of Bryston 4B3 amps with great success. But you can likely do well with just one of those amps run as a stereo amp. I do not recommend Schiit Vidars, as with loud music and in my experience, they go into thermal protection. Maggies need lots of current and power. They are also great when you add a pair of subwoofers, which I have found easy to integrate, as opposed to what some others have stated on this topic. 

I did use tubes for about a year....Rogue Cronus Magnum. It sounded fine and had ample power, but the excess heat wasn't acceptable in my hot climate.

I can't recommend the Anthem STR enough. A superb piece. There's a reason it's still on Stereophile's Class A list years after introduction.

I’d consider getting a couple of small subwoofers and an active crossover and keep your amp, buy if you want more power,  Check out Hegel. A used H360 can be had for around $3200ish. Class A/B Dual mono 250 watts X 2 into 8 ohms.