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Looks like i have a good few dips and peaks though
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Overall it isn't too bad, but there are some issues.
I guess I would look at both speakers individually, and then play them together (simply use a Y-adapter to feed both channels of the receiver). The REW signal is obviously mono, so looking at each speaker by itself will reveal any specific problems to that speaker, but you also want to see what it looks like when the two speakers play in concert.
You have about ~ +/-5dB variation across the spectrum except for the <100Hz area. The dip at 70Hz and the peak at 60Hz will be noticable.
It's also concerning that the signal drops off so rapidly above 10K. I wonder if this is the speakers or the microphone. You would need one of them swapped out with a "known" before you could determine that.
I don't know if you've treated your studio area much, but I would say not considering the amount of relections you showed in the unsmoothed plot?
To try and smooth the response, the RTA feature of REW is very handy. Use Periodic Pink noise with a Rectangular Window and maybe a 1/24 Octave RTA with 65536 FFT and then simply move around the mic and watch the screen. It may reveal a better listening position.
Again, I'm not a studio guy, so I'm just guessing at this point. The guys in the
Home Audio Acoustics section would know more about room treatment.
brucek