The Mola Mola amps are using the Hypex NC1200 module. You can buy mono block amps from $1700 a pair using these same modules. VTV Amplifier have $1700 mono blocks using the built in stock input stage and $3000 the pair with expensive Weiss discrete input stages using Sparko labs regulators. Even more high end is the mono blocks from Apollon that add better sexier, stunning looking chassis, wire, jacks, and separate linear power supply for the Weiss input op amps....these are $6000 the pair delivered to the US......the Mola Mola's are $17K! I doubt the Mola's would be as good as the Apollon. Check them out! These amp modules are rated at 1200 watts into 2 ohms (hence the name...NC1200). When the Mola Mola amps first came out the only way a manufacturer could sell an amp using these modules was to agree to sell mono blocks for at least $9K. This was to protect the Mola Mola brand. A couple of years ago Hypex finally stopped this restriction so now amps using these modules can be sold for way, way less. The Acoustic Imagery (now out of business) Astah amps ($9K the pair) were reviewed in link below. These amps used the built in op amp (equivalent now sells for $1700!!!).
http://www.10audio.com/acoustic-imagery_atsah.htm
http://www.10audio.com/acoustic-imagery_atsah.htm