MPEG-2 or MPEG-4: the best format for HD
Which format should become the standard for high-definition signals? MPEG-2 or MPEG-4? Find the answer in this article.
Tech Guides
The technology behind great sound and picture, explained clearly: formats, connections, amplification, acoustics and calibration.
1080p24: true home cinema
The arrival of HD DVD and BD has wiped the telecine defects of PAL and NTSC off the audiovisual scene. Discover the advantages of…
The contrast ratio
One of the selling points of projectors and televisions is the contrast ratio. Discover its secrets.
The physiology of sound
Intensity, pitch and timbre are the elements that define a sound. Discover them.
Power supplies
An article introducing the basics of power supplies: the first step toward a good amplifier.
Headphones: sound just for you
Let's not forget about headphones, devices that can give us a great deal of excitement.
What is stereo? A little history
We have significantly changed the meaning of "stereo". An article in which we can learn a little more about stereo.
Grounding: that strange, annoying noise
We often forget about the ground connection, an indispensable element for any electrical equipment that also looks after our…
Connections and the A/V receiver
An always difficult union. The A/V receiver is much more than the multichannel amplifier that drives the drivers in our…
What does THX mean?
A review of the requirements and advantages of the THX standard.
Loudspeakers: construction and characteristics
A review of the construction, design and basic characteristics of loudspeakers.
Drivers and crossovers
An article by Luis Llana on the use of crossovers in loudspeakers.
Upsampling and oversampling
Differences and requirements. What is upsampling? And oversampling? Are they the same thing? Are they really necessary?
The importance of a scaler
An article explaining the different processes a video signal undergoes before being projected.
Why bass reflex?
We are used to talking about bass-reflex and conventional loudspeakers, but we are seldom aware of what this actually means.
EVD: A sandstorm
On November 18, 2003, a news story shook up the market: China was proposing a high-definition format that outperformed DVD in…
The best digital connection: coaxial or optical?
One of the classic debates in this hobby is which type of digital audio connection is better. Read our opinion in the following…
Bi-amping: a remarkable improvement
One way to upgrade your system is to bi-amp it. Learn about the methods, advantages and drawbacks of this type of configuration.
Power supplies: linear or switch-mode?
Switch-mode power supplies, smaller and lighter, have recently become popular. Learn about their advantages and drawbacks…
Class D, the misnamed digital amplification
A review and basic explanation of the concept of digital amplification.