How to identify the quality of FP10000Q power amplifier?

How to identify the quality of FP10000Q power amplifier?

Summary

There are many similar FP10000Q amplifiers in China, but the actual materials used are quite different, that's why price much different.

There are many similar FP10000Q amplifiers in China, but the actual materials used are quite different, that's why price much different.

As we know, FP10000Q amplifier is very popular with many clients all over the world. In China, you will find there are many suppliers have FP10000q, some are amplifier manufacturer, some are trading company. 

But how do we identify the quality of FP10000Q amplifiers among so many suppliers? let's check it.
Looking only from this amplifier outside, do you think these are two identical products? Actually are not the same!
other cheap fp10000q
sinbosen fp10000q
Screenshot of a customer's chat
Once, a customer thought this fp10000q amplifier was our Sinbosen product and bought it. It was also because of this incident that we discovered that one of the suppliers was imitating Sinbosen fp10000q appearance.  so we found and bought one sample for comparison. 
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