Suggestions for bookshelf speakers that have great dynamics, budget of $500 used.


So I really do not know where to start with bookshelf speakers as not been in the market for any for ever it seems.
This is for a second system where a pair of Monitor Audio Silver 3i are currently doing duty.
Room is largish and open but ultimate sq is not the aim as it is occasional use only, but when I do fire this rig up I usually like to play fairly loud.
Sources are many, fm radio, cassette tape, vinyl and streaming.
I have plenty of horses to feed them so even inefficient models can be considered.
Prefer to buy used as big savings to be had obviously and already broken in.
So suggestions around a maximum price break of $500 used.
Thank you in advance.
128x128uberwaltz
uber, I found them easy to listen to and if you decide you'd like to try something else, they're easy to move.  I've tried a couple of different Monitor Audio speakers and they were too bright for me also.  Let us know how they work out over time.
Haydn are great looking speakers - since you say they are in good condition, you can resell them at the cost - good thing about getting used gears, as new ones depreciate...enjoy the hunt!
VA speakers tend to be very natural/a little forgiving (choose your epithet).  My favs are the Beethoven Baby Grand and the Liszt; I imagine these characteristics extend to most if not all models (not quite so keen on the Beethoven Concert Grands).
TBH forgiving and neutral is probably for the good.
For sure they don't have that blam in your face presentation but that can get old very quickly.
I had a Lyra Dorian cart which was very direct and in your face and at first I was thrilled with it.
But that presentation ALL THE TIME soon wore me down and it became very fatiguing.

I certainly don't want that in my speakers
Vintage:  KEF Q1 (AMAZING SPEAKERS: plenty of detail with amazing midrange and sufficient bass for me); doesn't do well with music like the "AMERICAN IDIOT " CD or Big Orchestral pieces, but Opera, solo voices and Eagles-Kansas-RHCP surprising enjoyable...

Vintage Big Boxes: JBL L25 PRIMA ( funky looking boxes with plenty of jump and presence)

And if I was looking at new: I'd investigate specials from KEF (who sells direct)

HAPPY THANKSGIVING TO ALL!!!