They are both excellent with similar sound.
I prefer HK and the full process Logic 7 over the Marantz's Circle Surround II. I also think the Texas Instruments DSP in the HK is superior and yields better results with EQ. The downside is even buying new you may have to upgrade the 635 if the build date is older than Dec. '05. The upgrade is especially necessary for 7.1 systems.
I prefer HK and the full process Logic 7 over the Marantz's Circle Surround II. I also think the Texas Instruments DSP in the HK is superior and yields better results with EQ. The downside is even buying new you may have to upgrade the 635 if the build date is older than Dec. '05. The upgrade is especially necessary for 7.1 systems.