probably r2600. But go for real studio monitor if you want flat sounding.
impossible to wall mount nicely.

honestly there's no "real studio monitors" that cost below RM1200

and honestly... once you get into real studio monitors... you realize in between studio monitors there's no real sounding monitors...

just get what you liked. 

I find the R2730 bluetooth feature drops the quality of your audio but it sounds good enough for daily use. pretty much contradicts with studio monitor.

I'd save a hundred more and go for R2800 for the size if you can afford. Bass can be tuned down with the bass control if you find it too bassy

cheapest among the market is wharfedale diamond 8.2 pro which is priced 800-900 one side.

big room small room?
acoustic energy aego m can fill small-medium size room that sounds clean but not flat. need to top up budget RM700+

i dont understand, are you sure u want flat sound

reduce boom, move spkr away from wall. thats it

flat tuning has a lot more treble than u can imagine. due to human ears natural roll off, it must raise up treble to hear actual recordings.
the only good thing it does not emphasise boost at any frequency

last year it was 7XX not sure about new pricing

rca will do things better especially with quality dac

just have the bass and treble knob on flat 0 if you want things flat.

no monitors will sound flat.
for work purposes an audio engineer will carry their own favorite monitors as their reference monitor because they recognize the signature. (same applies to headphones)