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2. Electrical characteristics of dynamic loudspeakers - Wikipedia

   en.wikipedia.org/wiki/Electrical_characteristics...

   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.

3. Audio power - Wikipedia

   en.wikipedia.org/wiki/Audio_power

   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 ...

4. Guitar speaker - Wikipedia

   en.wikipedia.org/wiki/Guitar_speaker

   Kustom 200 bass amp – amp head and speakers, 100 watts RMS, two channels, on top of a speaker cabinet with two 15" speakers, 1971. A guitar speaker cabinet is typically a wooden box that contains one or more guitar speakers. The smallest guitar cabinets have one 6.5" or 8" speaker; these are usually practice amplifier units designed for ...

5. Sound reinforcement system - Wikipedia

   en.wikipedia.org/wiki/Sound_reinforcement_system

   Three audio power amplifiers Rear panel of a power amplifier with 2 × 700 Watt (4 Ohm) - very similar to the topmost device in the image above - showing typical connectors for professional use: From left, symmetrical XLR-sockets for signal input, alternatively audio jack sockets, loudspeaker terminals of type Speakon (center), alternatively ...

6. Guitar amplifier - Wikipedia

   en.wikipedia.org/wiki/Guitar_amplifier

   Two 8 ohm speakers wired in parallel have 4-ohm impedance. Guitarists who connect multiple cabinets to an amplifier must consider the amp's minimum impedance. Parallel vs. series also affects tone and sound. Speakers wired in parallel slightly dampen[s] and restrain[s] them, giving what some describe as tighter response and smoother breakup ...

7. Nominal watt - Wikipedia

   en.wikipedia.org/wiki/Nominal_watt

   Amplifiers can therefore be safely specified to operate into a load that has this nominal impedance (or higher, but not lower). Typical nominal impedances for speakers include 4, 6, 8 and 16Ω , with 4Ω being most common in in-car loudspeakers, and 8Ω being most common elsewhere. A loudspeaker with an 8Ω nominal impedance may exhibit actual ...

8. Peavey Electronics - Wikipedia

   en.wikipedia.org/wiki/Peavey_Electronics

   The 2 ohm load rating is very stable (this amp actually operates at less than 2 ohms), enabling the use of multiple mix and match speaker systems to improve acoustic efficiency and sound stage options. In contrast, typical modern musical instrument amps are usually limited to 4 ohms speaker systems.

9. Thiele/Small parameters - Wikipedia

   en.wikipedia.org/wiki/Thiele/Small_parameters

   American EIA standard RS-299A specifies that (or DCR) should be at least 80% of the rated driver impedance, so an 8-ohm rated driver should have a DC resistance of at least 6.4 ohms, and a 4-ohm unit should measure 3.2 ohms minimum. This standard is voluntary, and many 8-ohm drivers have resistances of ≈5.5 ohms, and proportionally lower for ...