| Information | |
|---|---|
| has gloss | eng: Powered speakers (or active speakers) are speakers that have built-in amplifiers. They can be connected directly to a mixing console or sound source, without the need for an amplifier. Such speakers are available with passive or active crossovers built into them. Powered speakers avoid the necessity of speaker-to-amplifier matching and limiting is built in. Another advantage of powered speakers is a reduction in the length of cable between the amplifier output and the speaker driver (some claim this affects maximum slew rate, the rate of change in audio signals) since cable length is very small in powered speakers. Powered speakers ease set-up issues for an audio system, at least to some extent. However, since low-level signal cables have to be run to the speakers from a signal source, noise pick-up can be a problem. This can be reduced (even effectively solved) by incorporating "balanced line" inputs into the speakers. When driven by balanced signals (and cables) from the sound source, noise can be greatly reduced. Some powered speaker manufacturers, notably DB Technologies and Phonic, are now incorporating UHF wireless receivers so the speaker requires only a power lead. |
| lexicalization | eng: powered speakers |
| instance of | (noun) electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance speaker, loudspeaker system, loudspeaker, speaker system, speaker unit |
| Meaning | |
|---|---|
| German | |
| has gloss | deu: Unter Aktivbox oder Aktivlautsprecher wird meistens eine integrierte Einheit aus Lautsprecher und Verstärker in einem Gehäuse (Box) verstanden (englisch powered speakers); der Gegensatz ist eine Passivbox, die keinen Verstärker beinhaltet. |
| lexicalization | deu: Aktivbox |
| Dutch | |
| has gloss | nld: Een actief luidsprekersysteem is een combinatie van een of meer luidsprekers met ingebouwde versterkers. |
| lexicalization | nld: actief luidsprekersysteem |
| Castilian | |
| has gloss | spa: El altavoz activo es un tipo de altavoz caracterizado por el uso de filtros activos (digitales o analógicos), en lugar de filtros pasivos, para dividir el espectro de audiofrecuencia en intervalos compatibles con los transductores empleados. |
| lexicalization | spa: altavoz activo |
| Media | |
|---|---|
| media:img | Active loudspeaker.svg |
| media:img | Altavoz2VActivoAnalogico.svg |
| media:img | Altavoz2VActivoDigital.svg |
| media:img | Altavoz2VPasivo.svg |
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