Do YOU have a flat frequency response in your room?

Flat+ faithful reproduction of what the Sound Eng. and studio meant you to hear. I want to hear a trumpet or a pianie sound like they are live. Anything else is a muddied up mess that we have become used to over the years. I get up around live music and also participated multiple times and aspects of semi-pro music and trying to say that something less that a faithful sound form your speaker is desired is silly.

Now I like using my DiracLive Mic plugged into my Celliophone and then using the Decibel-X App to see both the instantaneous and average response of my system. I was initially amazed at how true my speakers did the job I built them to do. If yo hear something you consider TOO BRIGHT, yo need to get your ears cleaned out or just learn what LIVE music actually sounds like. I don’t know why ANYONE would desire their system to produce something adulterated and not realistic.
 

This takes me back to the days when everyone was getting a Graphic equalizer plugged into their system. I even did it for a short time, till I realized that it was the studio Eng and producers that made all of the music NOT realistic. We were trying to make up for what they had produced, forgetting that in most cases the SOUND that they created was in most cases what made or Broke an artist. SO in a sense we were all trying to find that flat response or what we saw as too much or Missing, but forgetting that the studio had some ulterior motive. Now a days we see a greater effort to make a realistic sounding musical presentation and now that we had gotten used to some distorted sound, we want to make what we hear now actually distorted. I do have an appreciation for both. The old sound was intentionally meant to sound a certain way and now I want to hear the TRUTH. It is as bad as corrupted politics.

I agree with the OP’s premise.  Plus or minus a couple of decibels.

@asvjerry @nonoise Thanks for catching my typo, that should read.

There is no "wrong" way to do this hobby

@asvjerry You obviously get the point, congrats on the speaker build, must be nice to have the satisfaction of being able to literally build the speaker to fit your room. Most of us have to change the room to fit the speaker, nice job!

@duckworp , I agree that that once you have a flat frequency response component upgrades can provide many benefits you simply can't measure with one microphone and a computer. We listen with two ears so things like soundstage can't be measured. My premise is to dial in whatever your preferred FR is before trying to change other parameters.

DSP is very limited in what it can correct. According to the paper I posted in section 2.4 Room Equalization is a Misnomer:

Equalization is very limited in what it can “correct,” yet the notion that changing the signal supplied to a sound system consisting of an unknown loudspeaker in an unknown room can “equalize” or “calibrate” a system is widespread. In the context of a practical application where there is an audience of several listeners conventional equalization cannot: • Add or remove reflections • Change reverberation time • Reduce seat-to-seat variations in bass • Correct frequency dependent directivity in loudspeakers • Compensate for frequency dependent absorption in acoustical materials and furnishings. The exception is in the highly reflective sound field at very low frequencies.

@esarhaddon 

Your premise is potentially fallable. You assume engineering and production for best sound quality may have been the goal…which isn’t always the case. More than a few productions may have been mixed to optimize sound from a boombox …or an automobile system…or earbuds.

Ideally I would love to hear what the original intent was provided they each shared sound quality as a goal. But alas, no two do to the same level or degree of honesty.