Only 2ch rated? The Monoprice is 7ch rated for 1500.00. And its 200 watts.
As mentioned in the article, the MM7055 isn't for guys who focus solely on amp power for the dollar. While it's not exactly an apples to apples comparison (5 vs 7 ch amp), there are a few things worth keeping in mind...
1. At 93 pounds, the Monolith isn't something I'd personally enjoy lugging into my HT, or shipping back in case it needs service. Even with a relatively robust, custom built cabinet, I'm not sure it'd handle that kind of weight either, let alone most cheap cabinets.
2. The Monolith gets quite hot. David Vaughn at S&V measured a temp of 152 degrees after a 75 minute session, so you'll need to plan for cooling accordingly. The MM7055's active cooling helps deal that problem, and it's also relatively silent.
3. Power...everybody fights for that last watt. 101W is so much better than 100W, right? In this case, both amps have been benched by S&V, so we have some idea of what they're capable of.
With 2 channels driven into 8 ohms, the MM7055 delivered 130.7W with 0.1% THD+N, while the Monolith 7 delivered 215.9. That's a difference of 2.2dB. With 2 channels driven into 4 ohms, the MM7055 delivered 215.8W with 0.1% THD+N, while the Monolith 7 delivered 345.6W. That's a difference of 2.0dB. With 5 channels driven into 8 ohms, the MM7055 delivered 107.8W with 0.1% THD+N, while the Monolith delivered 185.8W. That's a difference of 2.4dB. Not exactly a lot to write home about here in real terms.
4. Price...Yeah, the MM7055 isn't a screaming bargain at full MSRP, but there's always some room to negotiate that down a bit. With Monoprice, that may or may not be the case. The price of the Monolith 7 also doesn't include shipping, which bumps that up a bit.