TDA2040 Amp

[Fritzell]

Hey everyone, im putting together the TDA2040 20Watt amp from this circuit schematic
http://www.electro-dan.co.uk/electronics/TDA2040.html

Its the first time i build with chip amps and actually putting all stuff together in a little box. So i was wondering (spell?) If there is something special i shall think about when i wiring everything up. I made the circuit + preamp on a "towerboard" (not a pcb) and im using 2 4700mFD 40V capacitors. I think i shall put the chip to the box and use the whole box as a heatsink.
It would be nice to hear if someone else has done this and tell me something about it

Thanks