You will have to re-phrase the question. This makes no sense in English.
Out of the two, the Yamaha RX-V663 is a better receiver than the Onkyo TX-SR608. Although, the Onkyo is a good AV receiver, it is not as powerful as the Yamaha receiver.
The Onkyo will be compatible with a JVC home theater setup.
Popular opinion suggests that the best receiver between the Onkyo TX-SR608 and the Yamaha RXV663 is the Onkyo. It boasts ample connectivity, is well built and is 3D compatible. Reviews for the Yamaha RXV663 aren't all that with many saying that the design quality is quite poor.
Yes Polk Audio makes home theater speakers paired with an Onkyo receiver
The Onkyo TX SR806 AV receiver is THX Certified Professional.
Onkyo home theater systems are available in France if you buy them directly from the Onkyo website. They maybe available at the local electronics store.
The Yamaha YHT-690BL Home Theater System is right up their as is the Onkyo HT-S9100THX Home Theater System, you can't go wrong with either one of these bad boys.
The Onkyo receivers are excellent because they are high quality. They specialize in bass effect and are consistently rated the highest receiver by best buy.
There are many companies that offer home theater sound systems. Bose, Onkyo, Yamaha, Sony and Panasonic all have great systems for the frugal buyer or high end systems for the big spenders.
The price range for the Onkyo receiver products can be anywhere from around $200 USD to up to $3000 USD. However many of the products are around $200-$500 USD and few are higher.
Your home theater doesn't have to be one brand. The TV can be one, the receiver another, and the speakers the third. The best speakers are made by companies that don't make the other two parts. For TV, go with a major brand, such as Sony, Sharp, Samsung, LG or Panasonic. For receivers, go with Pioneer, Yamaha, Onkyo or Harmon-kardon. For speakers, I've always had good luck with Klipsch.
It's a great receiver with a low signal-to-noise ratio.