Technics SU-800 Amp. compatible with FOCAL CHORUS V ( 714 V) floorstanding speakers ?

Yes, your technics amp should do just fine-as long as you can match the impedance of the speakers. The impedance rating of the amp should be on the back; it should say something like 8-16Ohms, As long as your speakers are between 8 and 16 ohms, it'll be ok. Your speakers will only draw as much current a they need, and as long as the impedance rating of your speakers isn't lower than that of you amp, you'll be ok. Hope this has answered your question.