Picking Speakers 20k-30k

Additional detail would be helpful, such as any placement restriction (can the speakers be placed well away from the back wall or side walls, or do they have to be in the corner), how far away is the seating area, is the priority ideal sound for a very small seating spot or must the speaker sound good over a wide area, any restriction on size and appearance (e.g., can it be a large panel speaker), what kind of sound are you looking for (examples of what you heard and liked would be helpful), is ability to play loud a priority or is the ability to sound very good at lower volume a priority)?  These are some of the considerations that would factor into suggestions on what to hear.  

My overall suggestion is to go to a good audio show to hear the vast array of quite good, yet different sounds available to you, many well within your price range.  

I have not heard your brand of electronics, so I don't have so I don't have much of an idea on what would be compatible.  With some high-powered electronics, a mating with VERY high efficiency speakers would not be a good idea because many of those types of amps don't come alive when called to barely do any work.  That is why I am a bit hesitant to suggest one of my favorite reasonably price speaker which is the Charney Audio Companion with the AER driver selection (they offer other brands of drivers in that speaker, I like the AER model).  These are remarkable single driver systems that are about 100 db/w efficient and probably best suited to low-powered tube gear.  But hearing them might make you want to change up electronics as well.

I am not good with specific model names and their prices, so some of my recommendations merely mention the brand, others I have the model name.  my recommendations are as follows:

1) Cube Audio Nenuphar Basis-single driver purest might suggest their models using only one driver, but I think this two-way model with a built in powered woofer is a much more complete speaker system than their single driver speakers.

2) Fyne F1-12.  This looks like a single driver with a 12" cone, but, it has a tweeter in the center (coaxial speaker).  Fyne is a company founded by people who left Tannoy, so the speakers have a lot of similarity in design.  I happen to like the Fyne version of these speaker a little bit more.

3) Rossofiorentino.  I believe I heard the Volterra model and I think it is at or near your price range--a very lively, engaging sound.

4) I heard both of the Songer speakers that are built around a full-range fieldcoil drivers  One system has just that one driver, the other is a two-way system with the fieldcoil driver in an open baffle.  I believe both models are the same price and both are terrific sounding--very alive and vivid, but not harsh or brittle sounding.

5) Acora Audio.  I heard several models, but I don't know their names or their prices but they struck me a quite lovely sounding without being harsh or brittle.  They are also reasonably compact and should fit into almost any room easily.

Maggies sound good and are a very decent bargain at each model’s respective price level.  However, the OP had some location restrictions that may not suit Maggies (close to the back wall).  I’ve heard them sound quite good when placed closer to the side wall than recommended, but, they do need space to the wall behind.