Ton Giesberts (358)

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| The strong point of the recently puhlished 'surround-sound subwoofer' is that its frequency response is straight down to 20 Hz. Such exc...

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| The proposed circuit indicates with the aid of two LEDS whether or not the input signal contains surround data. The criterion for this i...

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| There are quite a few applications of an audio power amplifier in which power and hi-fi characteristics are of secondary importance. If, for...

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| Many designers nowadays almost automatically include one of the popular 3-pin voltage regulators in power supply designs. It is almost as...

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| The sine/cosine filter has several applications in audio equipment thanks to its virtually constant phase shift. As an example, the desig...

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| Most measurements of electrical quantities, such as voltage, current, resistance, or frequency, can be carried out on a multirneter or...

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| This active version of the subwoofer described in last month's instalment is a plus for virtually any hi-fi system. Where the low cut-...

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| Most surroundsound installations use loudspeaker boxes of modest dimensions so as to avoid making them too obtrusive for the usual li...

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| I f you want to fit your loudspeaker enclosure(s) with a drive indicator, it is best to use a unit that does not need a power supply. The...

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| When a digital-to-analogue converter (DAC) is used in conjunction with a CD player, their clocks must be in synchrony to make sure that...