What's the state of cheap active electrode amps?

laurentlaurent hawaii
in Hardware

I used to have this active electrode amp that you wear on your wrist, 7 leads, good signal, cheap, sold it in 2009 when I left the country and my interest shifted away from brain stuff.
Brain stuff is back on my radar and I started building a tool for neurofeedback.
But now, if you want a 7 leads active, you have to shell out 8 grand for the DSI-7 and the internet is more opaque.
What's the good stuff these days?
Anything good from China that I can get my hands on next time I'm in Guanghzou?

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