Yeah its true for what nearfields are concerned, on bigger controlroom with farfields they tend to use eq, depending what they use of course. It's difficult to say so I'd check with the oem support, if so, you would go for the pricey eq's like Clark Technique and a room analyser (which you could probably rent in order to set the eq stationary).
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unfortunately the luxury of building is one most do not have....... (maybe in a year or so hehe)
duh, but I had to say it anyway hehe and you never know, we started out in a basement....
something you might also be interested in is the dbx driverack studio..... it also has an rta mic and technical specs of many popular models of monitors so it can tell you how your room is 'out' and make adjustments to help remedy your rooms weaknesses. It can help with stereo image tonal stuff dynamics etc. (also is a good monitor control box with quite decent specs)
^^^^ Rent it hehe
not as good as fixing your room but alot cheaper
What does it cost ?
well, like I said before, you can change sizes of the room. Most ordinary rooms are rectangular, so you can adapt to a ratio according to 5mx7m / 2,5mx3,5m, you do the math hehe but this would at least save a great deal on the acoustics. In all you can just devide 5 by 7 and use that factor to determine what length would change. Say your room is 3m wide, the lengh os 7
5:3=)1,667=4,2m rounded, which is close the the average bedroom.
So, if your room would be 3x4,5 you'd make it a bit smaller by placing a plasterwall (I dunno how you'd call it in english) and surround that wall with acoustic detaching rails (surface, walls n ceiling). Stuff is easy to work with and pretty cheap. You need the rail, plasterplates?!, U and C profiles for creating a skeletonframe to mount the plasterplates on and rockwool for isolation behind the plasterwall(more=better). You use 2 layers of plasterplates, one covering the half of the layer below it in order to make it soundproof(a crack in the wall with one layer still leaks out dB's, 2 layer half over half stops it WHEN you close close all cracks in the first and second layer.
on the room tip there are quite a few things that can be done on the cheap to help with acoustics
Word, I dunno the expenses but you can do this for less than 150 bucks if you ask me, well, depending on your roomsize ofcourse. If you room is much bigger you could build a boot behind the wall, that is if you're handy enough hehe.