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Introduction
High power resistors are used in crossover networks to adjust the levels of individual speaker units, and they are also used in oscillator circuits and equalisers. Their basic job is to convert surplus or unwanted electrical power into heat. One of the most important specifications of a resistor is thus its power handling capacity, which is expressed in watts. Resistors' residual inductance is also relevant for tweeter circuits. Ordinary ceramic resistors consist of an insulator body cast around a wire winding. At very high frequencies this winding can behave like a coil, blocking the corresponding frequencies. Because of this we recommend using our metal oxide resistors for tweeters. These components don't have any windings; instead, the resistance is made of a conductive metal oxide layer applied to a substrate. This design has virtually no inductance.
HIGH POWER RESISTORS High power resistors are available in 5, 11 and 17 watt versions. All the resistors in each of these power handling classes have the same price, i.e. there are just three different prices. Please see the table below for the values in stock.
· Values in stock
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METAL OXIDE LAYER RESISTORS Unlike ordinary wire resistors,
metal oxide layer resistors have no residual inductance. This means
that they should always be used for all applications calling for
high transient rise times, such as mid-range speakers and tweeters.
Our metal oxide resistors have continuous power ratings of 4 and
10 watts, but their peak capacities are much higher.
·Values in stock |
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