Wanted to drop 2c on this… I grabbed the RB1700BTs for my home office desk setup back in June (I think?).
I have a decent mix of music and gaming and listen to a bit of everything from Opera to Metal to EDM. Absolutely loving them, having upgraded from some AudioEngine A5+ (gen 1) speakers.
My only issue was that the bass really didn’t grab me, they try but really don’t cut the mustard. So I grabbed an Emotiva SE8 sub and use the sub out on the BTs to run that, instantly everything sounds so much fuller. The sub-out line does a decent job of cutting off bass frequencies to the main driver and allowing the Emotiva to take over, I have the sub setup to take on frequencies around 90Hz and down. It does use a stereo 3.5mm as an output so I have that going to a split RCA, which the S8 then sums together.
I’ll also note that these things get LOUD. I was seriously surprised, they can really pump out the tunes without distorting the treble, muddying vocals, or getting shouty. This may be due to the sub taking over a lot of the bass and the main driver on the speakers being used more for vocals/mid-range.
For the price (delivered to Australia) I’m hard pressed not to get another setup just like this for my entertainment area.