Have ordered from Amazon months ago 2 1/2 a MARANTZ SR5008 AV Receiver. Had to print the manual (over 400 pages), was enormous disappointed to be found no phono input, no 4 Ohm speaker jacks. The programming went relatif good. Use the device as a 7.0 system, the sound is very good, even the Internet radio emits a de rigueur. After listening zka one hour Internetradiio, a very shrill whistle went through the 7 speaker even headphones were connected and to make matters worse even at night by 1 clock. The whole house was turned upside down, because we have fire alarms. A turning the equipment did not bring anything, I thought the speaker would not survive. After much back and forth helped only a disconnection from power. VERY EMBARRASSING. This phenomenon now occurred 3 times. Furthermore, I had another room ready for the Marantz ZONE 2 to operate. This fun ktionnierte but only if the same source is present at the 2 zones. So no CD in zone 2 if Internet Radio on ZONE 1. The manufacturer, there are like that. INACH all these problems, I decided to send the device to the Fiima FLYTRADE (seller on Amazon) back to Absprache.Nach 14 days with no response from the seller, was finally told my unit would have been sent to Marantz, to determine whether the device should be replaced or not. This I find a huge S ... rei! There are now probably months go by until I get some answers, you will höchstwarscheinlich device just send me back, "no error found" with the comment! I am over 20 years customer of Amazon and have never had any problems or complaints. No sense to try it at Amazon who blame everything on the Verkäufer.Somit ends one chapter with Amazon, here the customer is not definitif King. Thank goodness there is in Germany and other retailers, you just need to open the Internet. Conclusion: In addition to these problems, which occurred only hope for me, the Marantz SR 5008 is a good buy if you do not need 4 ohms and no phono input.