Speaker sound quality

[Abdullahseba]

Hi
Is there any difference in sound quality between buying a proper shelf speaker such as this one: http://www.whathifi.com/q-acoustics/3020/review
and using a speaker driver like this: http://uk.rs-online.com/web/p/speaker-drivers/0512815/
The frequency response is about the same on both.
I've never bought a proper pair of speakers before but I have got the Visaton Speaker Driver for a museum installation and to me the sound on a cheap Chinese 50W amp was superb to anything I have heard before (German quality )
And now I want a good speaker for the AV receiver so I thought if the quality really is good, I will make my own speaker boxes and save about a £100.
Any thoughts or experience?

Thanks in advance.