Class amp, but not for everyone

Positives:
+ The small TPA3118 module itself is class
+ Fast delivery (~ 3 working days - quite acceptable)
+ Because that is not so clear: the amp comes as German goods - Customs duties are therefore included in the price
+ Processing / optics class

Negative
- Had exactly this problem: [...]. The speaker terminal goodbye inside the unit.
Options:
1. Warranty claim. I do not know how fast it goes, have decided lack of time for option 2
2. repair yourself, housing open (so is the guarantee but gone!) Terminal Refit and tighten properly. I had to solder even the cable has become detached :(

Conclusion: great little amp for the price, but poor quality control.