Recent content by Thomas_A

One could also use the human whistle.

BTW, I made a simple recording of pink noise: a mono center speaker vs stereo speakers, only "left ear" below in mono. https://www.dropbox.com/s/atkjsqe4oujdx5e/mono%20vs%20stereo.wav?dl=0 Far from ideal experiment, but can you hear the timbral shift?

Time for the Chinese-branded AKG K271 Mk2? I would like to see the direct comparison with the Austrian model to see if and what has changed. (And the DT-150/DT100 pad...)

I tried with my simple setup at home (again) using OM1/Omni1 microphones taped to my ears. At LP where the steady-state curve is sloping a la Harman. Microphones are not calibrated to diffuse field which may cause loss in the HF region. The first file is the raw file and must be listened to...

It will be It will be a judgement of what is "linear" or not. One could call my speakers linear on-axis with +/- 2.5 dB, but could also be called "stereo compensated". My years of listening and DIY have at least made me satisfied.

It will be a hard test binaurally but certainly possible. I have suggested previously to test the same speakers with different EQ. Both within +/- 1.5 dB. One where there is a peaking at 3-4 kHz and 7-8 kHz, and one with the opposite EQ, i.e. dips at 3-4 khz and 7-8 kHz. I could perhaps do...

Yes reflections do mitigate the stereo problem. This is also why any corrections would be within the spec of most speakers. And as I mentioned, no such tests have been done. We assume that a perfectly linear response from a mono speaker also is the best speaker in stereo. But this assumption...

And I am quite confident that a QM60 or pI60s will come up as a top speaker also in a binaural contest. As you know 2 kHz dip which is had at +/-23° stereo setup cannot be compensated. You can only compensate partly by not exaggerating the response 3-4 kHz and 7-8 kHz. Not one speaker is equal...

It is old knowlegde, also in Tooles book. Stereo dilemma.

I am referring to the Revels here. The experiment that needs to be done is to have three speakers with as good response as possible placed in center and stereo setup, say +/- 0.5 dB on axis and likewise smooth off axis Play pink noise alternating the center and stereo. Adjust the stereo...

One could argue so. However very much of music content lies in the center of the phantom image, such as voices. There is just no optimal solution other than to add a center channel if you want correct timbre across the whole image. For stereo playback, there are only compromises which questions...

If you put a speaker with a linear response +/-1.5 dB against speakers with +/- 5 dB it will be quite certain which will win. With respect to stereo system corrections you need to test speakers that are within +/- 1.5 dB. Such a test has not been performed in the Scientific literature. Yet.

But he admits that the 2 channel speakers sounds different from the ideal speaker in mono. He also says that don't use 2-channel, because it is flawed. If you are using 2-channel, the timbre will be different from the same speaker in mono. So the ideal speaker in mono is not the ideal speaker in...

The F52 has a dip around 3 khz and several smaller Revels are voiced with slight dips 3-4 khz and even 7-8 kHz and are highly praised: https://www.audiosciencereview.com/forum/index.php?threads/revel-m105-bookshelf-speaker-review.14745/#post-458254...

I would say it depends on many things. The main things IMO are how the speakers dealt with the stereo system errors and also how the recording was made, taking into account the ratio of direct to reflected sound. I preferred B for piano because in my mind of the more natural timbre.