Originally Posted by santodx5
Despite all the good things, I feel there is one negative aspect from Optimizer in my system. The sound is dry and can be rough and cold. The obvious one is the vocal, I feel the singer have just had a sore throat, there is a certain dry/hoarse quality and lack of liveliness. The bypass sound; although it is more flat sounding, it is more pleasant to hear and natural.
This maybe system dependent, I am using TAD horn for LCR, the details are crazy and more boost from Optimizer, make some high notes a bit unbearable.
There are many elements you can look into. If you're using the Optimization Wizard and/or default settings, for one thing you may be running a flat target curve or have too small a rolloff on the higher frequencies. With horns I could see that happening.
Things to consider are:
1) Optimizer - did you just do a single position measurement? What IIR/FIR settings did you use, and what octave resolution (and energy cycles) were in the room EQ?
2) Speakers - are L/R and center toed in for measurable, on-axis performance at MLP? If these are bookshelves, there's also the matter of vertical elevation about how tweeters are aimed toward the listener
3) Target curve - is it a default "flat" curve? That's definitely going to be unpleasant for most listeners. Try a Harman style curve with a gentle downward sloping curve above the mid-range frequencies (you'll find some differences about where this should be, as well as the roll-off for your speakers). This is both science and art
4) Bass - you might have SBIR issues that are creating phase cancellation and producing some of the unpleasantness for upper bass, which I could see impacting male vocals, and you may be overcorrecting (or having an effect masked by other frequencies getting corrected showing up). That's primarily a subject for acoustic treatment and speaker placement, as well as where MLP is. That involves tradeoffs, naturally.
5) Frequency limiter - you could look at whether you want to limit the correction to the bass frequencies (i.e. below Schroeder). Likewise, you might want to tame the boost if you're getting a more shrill sound. Use with caution
6) I did a little research and I see you had (or at least posted on a thread with) a Marantz 8802. That's Audyssey XT32 I believe. Were you listening with Dynamic EQ on? That's going to impact how you evaluate the sound relative to other room EQ methods (with boosted bass and also surrounds below reference, tailing off as you get closer to reference). And what target curve did you use there - your own or just default Audyssey "Reference" or "Flat"?
7) For ALL of this, you need to measure externally with an OmniMic or REW to see what the room issues are before tackling the Optimizer alone. Without that you're flying blind.
In my opinion this is where you don't want to go completely DIY on the Room EQ, no matter how convenient a Configuration Wizard or default settings might be. I'd seek pro assistance (preferably Home Acoustics Alliance trained or with similar inclinations about best practice standards for a room) or turn to your dealer for more advice about setup rather than just "live with this" for awhile.
And whatever you do, I'd save the current configuration to a preset, then run the Optimizer and save the data to a new preset, and A/B. You'll want to do this on familiar content ideally for any changes you make. That's where you should let your ears guide you.