Hi Ricky
If you like Monitor Audio you will like the GX - they sound similar to the apex - but they are bigger, richer sound, definately smoother and they have been very senstive to changes I have made. The Apex image well, I would say the GX image better - they are less direct sounding in favour of a bit more natural presentation sound, hard to descirbe - you get a really good centre vocal with a lot of clarity. They are very bassy in my room and need taming with eq - I can see some people not liking them for that reason whjere they have no knowledge or control over whats going on
In the right room acoustics I bet they will image amazingly well (3D), as they image really well in my room, with some basic treatment (not that 3D because there isnt the space or treament) - I have heard the platiums in such a room and they image better than anything I have heard - but that was 90% the room allowing it to happen.
I have got to a point with the sound in stereo where I am really close to truely stunning results - i mean truely stunning. I have a few things left to get and then at this price point I think I will be maxed out and will have to settle there. The next step up will be to a good used 806 v4 Processor that has better dacs and just as important a linear power supply - thats out of my reach atm
In terms of the meridian kit - its definately an aquired taste in certain regards -It will be different to a lot of other sounding kit - you can listen all day and never tire which is great but not always everyones cup of tea.
I have just sold 2 Meridian streaming units in favour of building my own audio pc. I think it sounds better - becasue it sounds more like how I want it to - with the Meridian its often said you need their DSP speakers to get their full sound benefit - which is probably right. I am not finished wioth the audio pc and have been lucky to find info on optimising it to the lengths I have - someone written a great guide he is a true legend.
In terms of setting up the Meridian processor - there is a basic auto setup of bass equalisation but its not great - and you have to manually set everything else up distances, levels - thats a no go for most people - for me its ideal. Its the only system I have seen where you can manually eq the system - all the others do it auto and I wouldnt want that as it would not eq how I wanted it to - Hard Knee House Curve - its the way forward!!
If you want to know how it sounds ask Ric71 - he came round for a demo - he was blown away by the stereo playback and the bass from my sub he couldnt believe it. I have since improved the bass a lot and improved both stereo and film sound tracks playback with some tweaks, speaker / sub placement and the UD7007 so its a good system, I really like it.
One thing to point out - you can only EQ in the bass region so 250hz and down! I am dead against eqing above that and would not eq at all if I could get away with it. If you heard the system you would know why i say that - EQ is not needed it doesnt make the system sound better, only more processed
Also putting the big TV in has been a system trasnformer - this TV is amazing with the calibration I have done - its ridiculously good