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For example, if two identical amplifiers (each rated for operation into 4 ohm) are paralleled into a 4 ohm load, each amplifier sees an equivalent of 8 ohm since the output current is now shared by both amplifiers — each amplifier supplies half the load current, and the dissipation per amplifier is halved.
If a home hi-fi amplifier specifies 8 ohm or greater loads, care should be taken that loudspeakers with a lower impedance are not used, lest the amplifier be required to produce more current than it was designed to handle. Using a 4 ohm loudspeaker system on an amplifier specifying 8 ohms or greater could lead to amplifier failure.
Typical loads used are 8 and 4 ohms per channel; many amplifiers used in professional audio are also specified at 2 ohms. Considerably more power can be delivered if distortion is allowed to increase; some manufacturers quote maximum power at a higher distortion, like 10%, making their equipment appear more powerful than if measured at an ...
This 2-way, 4-ohm, design was a physically much smaller product – measuring 425 × 332 × 244 mm (16.7 × 13.1 × 9.6 in) – that required tall speaker stands. Launched in 1978, it was Linn's entry-level loudspeaker until the Kan (a non-isobaric bookshelf speaker using the same Linn D20-LP-1 and KEF B110 drive units as its big brother) was ...
The loudspeaker's nominal load impedance (input impedance) of is usually around 4 to 8 Ω, although other impedance speakers are available, sometimes dropping as low as 1 Ω or 2 Ω. However, the impedance rating of a loudspeaker is simply a number that indicates the nominal minimum impedance of that loudspeaker over a representative portion of ...
The term loudspeaker may refer to individual transducers (also known as drivers) or to complete speaker systems consisting of an enclosure and one or more drivers.. To adequately and accurately reproduce a wide range of frequencies with even coverage, most loudspeaker systems employ more than one driver, particularly for higher sound pressure level (SPL) or maximum accuracy.
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