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 🙂
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 […]
Woofer Size
Why woofers need to be large to radiate efficiently Due to a recent discussion about efficiency and directivity: Is higher efficiency – like with horn systems – a result of higher directivity? Produced by restricting […]
High Frequencies (HF) – More Questions Than Answers
The picture on top shows 100 ms of the room response after an initial impulse was radiated by the loudspeaker. Since low frequency (LF) energy is distributed over time what we see is mostly high […]
Modal coupling – aka Low Frequency Optimization
Modal coupling is about how your loudspeaker’s and listening position influence the reproduction of low frequencies (LF) in your room. Fundamental frequencies We have been talking about room modes in the resonance blog. At a […]
Acoustic radiation impedance
What is radiation impedance? Let us have a look at Wikipedia: “Acoustic impedance and specific acoustic impedance are measures of the opposition that a system presents to the acoustic flow resulting of an acoustic pressure […]
Reflection and Diffraction of sound
A complex mixture of reflection and diffraction happens to sound that hits an object of similar dimension as the wavelengths of the sound signal. Interestingly, sound waves bend around objects. Wavelength again The easiest way […]
Resonance, standing waves and room modes
Room modes Resonance happens in systems that can oscillate. Rooms are such systems, and their resonances are called room modes. Loudspeakers excite these room modes more or less depending on their position, creating so-called standing […]
Acoustical interference and comb filtering
Interference is what music rooms imprint on the reproduction of our music. Take a seat in the „sweet spot“ in front of two stereo loudspeakers. If both radiate the same frequency, their signals add up […]
