Recent content by Anatoliy Gavrilov

Also check the high frequency in the settings of your sound card and computer. When measuring the frequency response of 15 kHz, it passes through a level of -1 dB relative to a frequency of 10 kHz - this is quite normal for a tweeter with a fabric dome.

To measure, I place a microphone in front of the chair (listening point), the microphone is at the height of the tweeter, aimed at one speaker. Then I turn the microphone towards the second speaker - the measurements of the left and right speakers should match as much as possible. And...

The tweeters are a few years old - were they warmed up by the pink noise signal before being measured? At the manufacturer, the sound pressure drop (at 20 kHz) passes at a level of - 2 dB from the average pressure. And in order to get the most similar measurements, you need to repeat the...

I suggest setting each channel separately via Audyssey MultiEQ. These are measurements from the latest REW packet, and they all show poor frequency and phase response :

I converted all your REW measurements to 1/3 octaves and compiled them into one averaged measurement. All measurements have a different level of signal amplitude, this also affects the uniformity of the average frequency response. Here it is already a little better, but there is a dip from 2...

All files open well, but I did not like the high unevenness of the frequency response graph. For example, my bookshelf speakers, 2-way :

dsnyder0cnn Are these measurements from the same microphone position? Very high quality sound settings. And if you put a microphone for measurements at 5-6 points in front of the chair? That is, to make a composite graph of the frequency response in REW from 5-6 measurements.

Yes, I liked the Harman curve and it is quite real in our settings. In it, the high-frequency roll-off and low-frequency rise are 3 dB relative to a frequency of 2 kHz, The Jim 1961 has a bass boost of +7dB - that's relative to 2kHz.

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Hello, I'm also not quite sure about the measurements : Sound pressure up to 40 Hz is quite real, but below 40 Hz what sings? the subwoofer reproduces up to a maximum of 120 Hz. And what plays above 120 on the chart? Hello, Jim 1961 is one of the best, but.. But the bass is raised below...

Yes, the second file is good, it contains SPL correction from 9 kHz to +7.9 dB, and it is for measuring at an angle of 90 degrees. And now make a copy of the file and put 0 dB correction values in it above 9068 Hz. Then substitute this file in REW. Most microphones are advertised by...

The attachment contains the wrong calibration file - there the SPL is raised by 25 kHz by + 47 dB. This cannot be. I suggest setting the microphone calibration to "flat" in the program settings. Another option is to take another measurement microphone for comparison. Then the upper measurement...

John, and the SPL meter measures especially accurately at a frequency of 1 kHz. Therefore, to calibrate REW, one A5 speaker must be included, without subwoofers.