What is the correct power amplifier to acquire in terms of power?

I- It is necessary to pay attention to the amount and RMS Watts specified by the...

Question

What is the correct power amplifier to acquire in terms of power?

I- It is necessary to pay attention to the amount and RMS Watts specified by the speakers to be connected.
II- Not always will you find amplifiers that are designed to produce the exact power specified by the speakers.
III- A percentage of + - in power is handled, for example, an amplifier that produces 30% less power than required or one that provides 30% more power than the permissible power in the speakers.
IV- If we have a pair of speakers that specify 80 RMS Watts, we need a 2-channel amplifier that produces between 50-120 RMS Watts x channel, within this range the speakers will be correctly powered.
V- If we need to connect 4 speakers, 2 of 60 RMS Watts and the other 2 of 80 RMS Watts, we would be talking about a total of 280 RMS Watts.
a) I, II, III, IV and V are correct.
b) I, II, IV and V are correct.
c) I, II, and IV are correct.
d) Only III is correct.

Ed · Answer

A alternativa correta é a letra B) I, II, IV e V estão corretas.

Explicação: 
I- É necessário prestar atenção na quantidade e RMS Watts especificados pelos alto-falantes a serem conectados.
II- Nem sempre encontraremos amplificadores projetados para produzir a potência exata especificada pelos alto-falantes.
III- É manuseado uma porcentagem de + - na potência, por exemplo, um amplificador que produz 30% menos potência do que o necessário ou um que fornece 30% mais potência do que a potência permitida nos alto-falantes.
IV- Se tivermos um par de alto-falantes que especificam 80 RMS Watts, precisamos de um amplificador de 2 canais que produza entre 50-120 RMS Watts x canal, dentro dessa faixa os alto-falantes serão alimentados corretamente.
V- Se precisarmos conectar 4 alto-falantes, 2 de 60 RMS Watts e os outros 2 de 80 RMS Watts, estaríamos falando de um total de 280 RMS Watts.

What is the correct power amplifier to acquire in terms of power? I- It is necessary to pay attention to the amount and RMS Watts specified by the...

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30 - Diferencia de Watts RMS y Watts Peak

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