Not necessarily. It's pretty common to use 4-pole connectors in stereo amps. Benchmark does it. I do too.since my Purifi amp is a typical stereo amp the connectors must be 2- pole.
Because it's an engineering evaluation module, not a finished consumer audio amp.I wonder why Purifi would supply this Eigentakt kit thing with professional connectors instead of the regular binding posts.
The amp you show is by VTV. Why not ask them whether the speakON connectors are 2-pole or 4-pole?
Tom