Výkon zosilňovača a receivera

Ak porovnávate výkonnosť dvoch zosilňovačov od rôznych výrobcov, je dôležité dať si pozor, pri akých podmienkach dosahuje zosilňovač udávaný výkon. Napríklad, výkon RMS môže byť len zlomkom špičkového výkonu IHF. Dôležité je aj pri akom skreslení (THD) zosilňovač/receiver výkon dosahuje a či je výkon udávaný pre oba/všetky súčasne budené kanály, alebo len pre jeden.

Výkon RMS (W) – maximálny výkon, ktorý dokáže zosilňovač produkovať neobmedzene dlhú dobu. Je prakticky totožný so sínusovým výkonom.
Výkon DIN (W) – maximálny výkon, pri ktorom je zosilňovač schopný reprodukovať signál s frekvenciou 1 KHz pri maximálne 1 % celkového harmonického skreslenia (THD) po dobu desiatich minút (pri autorádiách sa počíta pri 10 % THD). Zvyčajne ide o cca 10 % vyššiu hodnotu, než je jej ekvivalent RMS pri rovnakej impedancii.
Dynamický výkon IHF (W) – výkon, ktorý dokáže zosilňovač produkovať po dobu 20 ms a využíva ho na vykrytie dynamických špičiek.
PMPO (posledná milisekunda pred odpálením :-) – v podstate fiktívna hodnota, ktorú s obľubou používajú ázijskí predajcovia, a ktorá vám o výkone zosilňovača nepovie dohromady nič.

Naša ponuka zosilňovačov, receiverov a reprosústav

Slovník pojmov

Slovník pojmov – Dynamický rozsah hudby
Slovník pojmov – Citlivosť reprosústav SPL (dB/W/m)
Slovník pojmov – Akustický tlak (akustický výkon)
Slovník pojmov – Pásma reproduktora (reprosústavy)
Slovník pojmov – Maximálny dlhodobý príkon reproduktora (RMS)
Slovník pojmov – Impedancia reproduktorov (reprosústav)

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