What is the difference between the MD 208 and MD 209 Integrated Amplifiers?

The MD 209 is a 125 watt into 8 ohms and 250 watts into 4 ohms high current receiver utilizing our new Hybrid-Acoustic Technology where the gain is produced by the tube. The MD 209 also comes with three digital inputs including a USB port to feed our World Class 24/192 over sampling DAC. Full function remote is standard. The tuner section is our top of the line RF section, whereas the MD 208 utilized the MD 100 RF section.