Powered Bluetooth speakers under $600


I have a very nice setup for my primary system, with Golden Ear Triton one speakers.
I just bought a Bluesound node 2i (no internal amp) to start enjoying streaming, Qobuz, internet radio etc. Of course I can plug that into the back of my amp.

But I would like to buy a pair of powered speakers that would sit in my library, and use the node 2i via Bluetooth connection to those speakers. I know I will not get the sound of Triton One’s that are in my living room; but I would like pretty good sound, with bluetooth connection from Node 2i to the speakers. And some reasonable amount of bass. No need to shake the walls at all. 

I am willing to spend up to $600 for the pair. I have read about Kanto YU5 and YU6, Klipsch 51 (Lowe end is only 67 Hz?); These days, challenging to go into a store to listen to and compare speakers.

Does anyone have suggestions for a pair of powered bluetooth speakers for $600 that will be satistfying without the need for a subwoofer? I guess I could spend a bit more if it would bring sound to a new level.
Thanks.
goldsheld
All good suggestions. Thanks you everyone!
After doing all the reading I can about these speakers, now I am re-thinking. I own a pair of Mordaunt-Short Carnival 2 speakers. And from all I am reading, the Triangle's may out-do them, and the Canatoo Transparent One may as well.But I am now wondering if I should find a used Cambridge Audio CXA81, and play the Mordaunt Short's wired. Any thoughts on that idea? I would think I could find a used Cambridge Audio CXA81 for $800. Bring me to $200 over my initial cost, but possible worth it/
It is SO HARD to do this at a time when going into a store to listen is a challenge.
Thanks to all who have taken time to weigh in. 
Coming in at the top end of your budget at 600 are the Vanatoo Transparent One Encore, which I heard at an audio show in NY last year and their sound blew my mind. One day when funds allow I will most likely replace my little Audioengine A2+ with them. I don't know how the bigger A5's match up, or the recommended Triangles (which I am sure are nice too), but I feel confident recommending the Vanatoos despite having heard them only once. Everyone in the room just exchanged looks of disbelief, trying to spot the hidden sub..
I have brand new A stock Scansonic M5 BTLs listed here for $525.  It was a special from the factory as they are normally $1000.  They are a darn nice pair of speakers with a 50w Class AB amp and the Bluetooth works extremely well.  

They go to 55hz so aren't going to give you the best bass response but not terrible.  Typical for a smallish bookshelf.  They have a nice sounding ribbon tweeter that I think will appeal to someone who likes Goldenears.  

https://www.audiogon.com/listings/lisa418d-scansonic-m5-btl-powered-monitor-w-bluetooth-bluetooth-wireless

Otherwise, Audioengine is probably your best.  They typically have the best speakers on a cost/quality basis.  

I had the KANTO YU-5s. The first pair failed within a month, so KANTO. replaced them under warranty and the 2nd set worked  fine for 2years.
I sold them because the TRIANGLE WIRELESS BLUETOOTH BOOKSHELF SPEAKER – SENSA SN01A was a step up in soundstage, punch, and dynamics.
Highly recommended 
https://www.stereonet.co.uk/news/triangle-is-positively-active

https://www.trianglehifi.com/en/produit/wireless-bluetooth-speaker-sn01a/
https://www.kronosav.com/products/triangle-sensa-sn01a-active-speakers

https://www.audiophil-online.com/news/triangle-new-sensa-range-of-loudspeakers/
Peachtree Audio "Deep Blue".NEVER heard a BT speaker like it & you only need 1...Dynaudio has a reputation for superb bass in VERY small speakers & has several BT speakers I believe...
The Audioengine line of speakers should work well.The Audioengine A5+ to be exact.


www.audioengineusa.com/shop/poweredspeakers/a5-plus-classic-speakers/