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Different harmonic distortions at different places?

Why would you get different measurement results for harmonic distortion at different places? In several of our other blogs, we talked about harmonic distortion. https://testhifi.com/2019/03/15/the-sound-of-distortion/ David explained why they are. Also we talked about acoustical […]

Wilhelm   Allgemein
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Complex bass array – Plattenwerk.at

In my last TestHiFi blog I wrote about a band-limited low frequency (LF) system to fill a response gap. This time I would like to show a much more complex LF system. Some years ago […]

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You can hear the difference – listening example

Any system plays music it is just a question of how close it comes to the original. The question of hifi, high fidelity. The two audio files attached play the recording’s taken at the same […]

Wilhelm   Allgemein
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An unconventional loudspeaker solution for LEWITT Audio

An unconventional low frequency solution – LEWITT Audio The result
shows the advantage of this remarkable space: walking back along the symmetry axis towards the rear wall without any change of LF characteristics. Nice and even everywhere!
LF reproduction can be tricky, even in an amazing room like this. One more reason for custom design 🙂

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Position is key

Influences to the frequency response Sure, we all know about and talk about the frequency response. Measuring amplitude over frequency. Of course, this is far too profane for a proper audiophile to have a seriously […]

Wilhelm   Allgemein
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Absorption and Diffusion – Lemon Audio

How do we achieve good room acoustics? Today, it seems there exist some guidelines about how to design a good loudspeaker.Interestingly, we find much more controversy how to achieve good room acoustics! For loudspeaker placement […]

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Air between the tones

Very subjective view on some highly appreciated sound experience events This time I write about air between the tones and some of my recent listening experiences and about some thoughts about better measurements of sound […]

Wilhelm   Allgemein
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Simple pleasures

During the last weeks, I enjoyed some 300 surplus LPs from a friend. Very nice ones! Browsing through them with a minimalist vinyl setup: turntable, solid state phono- and chipamp into Betahorns.I am spoiled by […]

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Bluetooth Signal elongation

Sometimes when measuring – how we found the issue Bluetooth signal elongation? One would expect, if you transfer a signal, the signal you receive equals the signal that was sent.  When we were developing and […]

Wilhelm   Allgemein
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Fast Fourier Transformation

Today, Fast Fourier Transformation (FFT) based analyzer software is cheap or available for free. One such very nice and free program is REW (Room EQ Analyzer). It can do much more than analyze room acoustics, […]

David   Allgemein . Measurements
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