- May 28, 2020
- A Whole Other Country
Well, I did use the Audyssey App to do a 8 point calibration with the last 2 very close to the MLP to overload it slightly in the analysis. It came up with the same crossovers but slightly different levels.
Is the app better at plain vanilla calibrations? It looks like the iPad was doing the analysis, not the AVR. I got rid of midrange compensation.
I chose High Frequency Roll Off 1 for now but the room is large so High Frequency Roll Off 2 is probably better.
I'm getting lost now in comparisons I decided to switch to headphones to listen more closely and to eliminate Audyssey, the room, levels, and just try to hear the DAC and pre-amp (although the headphones use different amps). This was prompted by the song Questions by Jack Johnson which is a lullaby but has a lot of nuance with his voice and guitar.
Feel free to modify the recommended mic pattern when you run the calibration. For music, I use a pretty tight pattern around the MLP, where every position is within 12", some within 6". The shape is a squished hexagon of sorts, which uses 7 points.
If you have good speakers in a good room, you may want to limit the frequency range to 1000Hz or less, perhaps 500Hz.
I have found through measurement that setting the crossover to 80Hz, leaving the target curve flat, and boosting the sub volume yields the most accurate in-room frequency response. That is what you see in the measurements I posted a few pages back. IIRC, each of my two subs was boosted 1.5dB each.
Start with all the various options turned off. Add them back later one by one to see if you like any of them.