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Is your car audio system upmixed or just mixed up?

Is your car audio system upmixed or just mixed up? What is Upmixing? The block diagram above shows a system for creating surround sound from a 2-channel source.  Known as “upmixing”, this was once the preserve of the home listening environment. We have seen many similar systems employed in executive saloon cars over the years. […]

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Phase and Car Audio

Phase and Car Audio Like A Low Voice On A Wave Of Phase If you are into audio, you are probably aware of what we mean by “phase” if not, it is simply the correlation in time of two sound waves. If you have noise cancelling headphones you experience the most extreme effects of putting two […]

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Thiele/Small and Speaker Enclosures

Thiele/Small and Speaker Enclosures We complete our tour through a typical car speaker specification list by looking at Thiele/Small Parameters. These are important when looking to put speakers in a sealed or ported enclosure. They dictate the optimum size an enclosure should be in order to get the most out of a given speaker and […]

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Electrical Impedance in Car Audio Circuits

Here we put impedance in the spotlight. More accurately, we should refer to it as Electrical Impedance as other kinds do exist. In fact, the word itself is derived from the verb “impede” which means to restrict or obstruct. Electrical impedance is often mistaken for electrical resistance but differs insofar as it relates to alternating […]

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Frequency Response in Car Audio

Frequency Response in Car Audio Every piece of audio equipment specifies a frequency response. Here we investigate what it means, what makes a good one and how it should be stated. First off, it is useful to understand how frequency response relates to a human’s ability to hear. As a general rule, fresh new ears […]

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Golf G7 Audio Upgrade Pack – By VW Driver Magazine

“COMPARISON OF SPEAKERS IF YOU HAVEN’T already got the factory-fitted Dynaudio system in your Mk 7 Golf, there are other options. Not to be outdone by the new hi-fi system in his son James’s up! (as featured in the last issue) Simon Harper started looking at the options to upgrade the sound system in his […]

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Over Sensitive About Car Audio? – Speaker Sensitivity Explored

Over Sensitive About Car Audio? – Speaker Sensitivity Explored Continuing our journey into specification-land, we chance upon speaker sensitivity. We can see it is measured in Decibels (dB), but what is it? what kind of figure is good – is it simply that the higher the number is, the better a speaker is? What do […]

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Total Harmonic Distortion (THD) in Car Audio Electronics

Car Audio Electronics And Total Harmonic Distortion Distortion kills! It kills speakers and it kills ears. However distortion also comes in many different forms. THD is one form but in fact any difference between and input signal and output signal of a device is distortion. Even equalisation is a form of distortion albeit intentional. So, […]

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Damping Factor in Car Audio Systems

Damping Factor in Car Audio Systems Damping Factor DF is: DF=Zload/Zsource (Wikipedia) Many amplifiers carry a number for “Damping Factor” in their list of often unintelligible specifications. If you are of a mind to look at these when selecting an amplifier, how do you know what to go for? Is a high number better than […]

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Car Signal Processing – AudioControl’s Approach

Car Signal Processing – AudioControl’s Approach American innovator AudioControl has operated in all fields of audio excellence for over 40 years now. Consistently delivering in car solutions that help installers to establish good sound in a very tricky environment. A new range of digital signal processing products represents the pinnacle of their technological capabilities. The DM-810 and […]

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