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Articles about sound, technology and Kvålsvoll Design products.

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Category: 2-channel hifi

Posted on 25/03/2021

How loud is our music

How loud is it – when we turn up the volume, to really enjoy that physical bass and get the live experience. In plain, objective dB numbers – how loud.

Continue reading “How loud is our music”

Posted on 19/03/202120/03/2021

Effect of Loudspeaker Directivity Compared with In-room Measurements

We know loudspeakers sound different, we also know they can measure different – both in the lab, and in-room. But what if they seem to measure quite similar – and still sound very different. Is there something hidden in those measurements, that we missed?

Continue reading “Effect of Loudspeaker Directivity Compared with In-room Measurements”

Posted on 26/08/202030/03/2021

F205: How a Small Loudspeaker Sets a New Standard for Sound

What I hear is different, and I realize it is different simply because it is so much better.
Small size, works in ordinary small rooms, decent looks, acceptable price. This, combined with significantly better sound – that is the sound of the future.

Continue reading “F205: How a Small Loudspeaker Sets a New Standard for Sound”

Posted on 27/06/2020

New Amplifiers Buurion & Guurion

They are small, they are cold, they have perfect sounD, they are nice and exciting to look at.

Continue reading “New Amplifiers Buurion & Guurion”

Posted on 20/08/201921/08/2019

Audibility of group delay at low frequencies

Can we hear phase changes and small delays in the bass range, caused by misaligned subwoofers or room acoustics? Let us find out. This controlled experiment shows the facts about group delay.

Continue reading “Audibility of group delay at low frequencies”

Posted on 23/04/201927/04/2019

The F105 Loudspeaker

Why spend a lot of time on such a small speaker, isn’t it sufficient to just hear a few songs? Can Such a speaker really provide an audio experience that makes it worthwhile to sit down to just listen to music and sound.

Continue reading “The F105 Loudspeaker”

Posted on 31/03/201923/04/2019

Bass and Sound Quality – Discourse

What do the examples from the article Bass og lydkvalitet – 4 eksempler show about bass and sound quality. Here is a discourse on the subject bass and sound.

Continue reading “Bass and Sound Quality – Discourse”

Posted on 10/03/2019

Bass and sound quality – 4 real-world examples

Read the Norwegian article here: https://www.kvalsvoll.com/blog/2019/03/10/bass-og-lydkvalitet-4-eksempel-fra-den-virkelige-verden/
Posted on 10/02/201910/02/2019

Calibrating a bass-system

What should you focus on and how does different calibration settings affect sound, including description of music samples for evaluation.

Continue reading “Calibrating a bass-system”

Posted on 02/12/201819/05/2019

How much power do I need

In the amplifier test we learned that good amplifiers operating well within limits are very difficult to hear – they are very close to perfect. But when you run out of power, things change dramatically – the inevitable distortion can certainly be heard, and different models will have their own signature sound when this happens.

Continue reading “How much power do I need”

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About this blog

Audio technology, loudspeakers, acoustics, hifi equipment, the music we listen to.

My old blog and all the posts I used to do on forums about sound with a scientific approach will continue here.

I have added some of my old articles.

Some posts will be available in both Norwegian and English language.

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Categories

  • 2-channel hifi (28)
  • Acoustics (8)
  • Audio technology (21)
  • Calibration and measurements (10)
  • Electronics (5)
  • Home Theater (22)
  • Loudspeakers (11)
  • Movies (3)
  • Music (6)
  • Subwoofers and bass systems (14)
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