I looked up the JBL Eon One Pro and it appears to basically compete with the Bose L1 Compact. It has a larger sub than the Compact, built-in 5/6 channel mixer, and can be battery powered. Hard to tell how to compare the two in terms of sound quality.
From a basic features perspective, it looks cool. However, in the reviews I’ve read, there was a disturbing amount of quality issues with it. Now maybe they’ve come out with a new and improved version or maybe there was just bad run of them.
Having said that, JBL has an alleged 6 hour battery powered L1 Compact clone with a big sub. So It shows that it’s possible. The sub is around 36 lbs though.
Rather than one overall unit, I kinda like the idea of a more component based approach where I could just use the S1 by itself, but then add/plug-in a beefier sub when I needed more bottom end. Perhaps have the option to have 2 S1s share a single sub. Typically I can get by with just one S1 and a separate mixer without a sub.
Having both sub and S1 use the same battery (be it one or 2 batteries for the sub) makes a lot of sense too.
What would also be a “nice is to have” is add another basic mixer built-in to the additional sub so I could better accommodate my acoustic duo where I need 2 mic inputs and 2 instrument inputs precluding the need for a separate mixer. Perhaps leave out the Bluetooth since you’d typically pair it with a S1 and have instead EQ controls tailored to the bass spectrum.
Now how about a name for this sub, S1B? 😁