There are some reviews here (in French):
http://www.elitediffusion.com/catalog/images/BE%20MSB%20PDII%20HF.pdf
http://www.elitediffusion.com/catalog/images/BE%20RDS%20Plat%20DACIII.pdf
http://www.elitediffusion.com/catalog/images/MSB%20PD4%20S&I%2007
You can use Google Translate to translte into English: http://translate.google.com
http://www.elitediffusion.com/catalog/images/BE%20MSB%20PDII%20HF.pdf
http://www.elitediffusion.com/catalog/images/BE%20RDS%20Plat%20DACIII.pdf
http://www.elitediffusion.com/catalog/images/MSB%20PD4%20S&I%2007
You can use Google Translate to translte into English: http://translate.google.com