Just say no to Behringer!
It's both a sound quality and quality control issue for me. But even if you where personally ok with the sound of the Behringer unit for what you're using it for the QC is going to bite you and probably sooner than later. While a Tascam unit like the M-520 will age gracefully, Behringer has a rep of failing in bits and pieces around the time the warranty runs out.
Some people will compare Behringer to Tascam saying that Behringer is doing basically what Tascam did in time past by bringing quality affordable products to the masses. But there’s no comparison. The old Tascam company had a tradition of well researched and engineered original products proudly made in the country of origin, Japan, by people who cared about reputation and long term customer satisfaction.
Behringer was once a good company with products made in Germany, but was one of the first to go to dark side of outsourcing to China. Vintage Tascam gear may or may not need major service and repair, but if/when it does it’s more practical and easier to do… and worth the trouble. Behringer products are temporary, more comparable to disposable razors or something of that nature. The products for the most part are future doorstops and paperweights waiting to happen.
I have a couple vintage Behringer products made in Germany. These are fine products from that era, but that Behringer is no more and exists in name only.