However, you'll have low SPL (sound pressure level) or 'loudness' with this little power. In our question above 'Do I need a 200 watt amplifier to drive a 200 watt speaker?' the answer is simply 'no'.Ī 200 watt RMS power rating is how much power a speaker can handle, not how much it requires.Įven a 200 watt speaker can sound great with only 30% (60 watts) power applied. This can cause a voice coil to literally 'burn' and possibly 'short-out,' rendering it inoperable. For example: If your speakers are rated to handle 50 Watts RMS each, and you select an amplifier that will deliver 125 watts RMS per speaker, you will likely apply too much power for the speaker to handle.

Do not match the speaker's RMS power rating to an amplifier's Max/Peak power output. Do not use this power rating for matching speakers to amplifiers. If the peak power rating is exceeded for an extended period of time, there is danger of overheating and deforming the voice coil.

However, I saw there are AVR that is multi-channel and they have ability to bi-amp the speakers by just using 1 single AVR. And if using vertical bi-amp (mono mode) then the power will be even increased further. And the power will be double Amp A + Amp B. The second is the 'Max' or 'Peak' rating which is the maximum amount of power that can be applied for short periods of time without causing damage. The setup can be horizontal or vertical bi-amp. For example: if your speakers are rated to handle 50 watts RMS each, then select an amplifier that will deliver approximately 50 watts RMS to each speaker. Use this power rating to match the speaker's 'RMS' capacity to an amplifier's 'RMS' output. A speaker with a high power rating uses a large voice coil, allowing more heat to be dissipated and therefore allows more power to be applied to the speaker. One of the primary factors that determine the power rating of a speaker is the size of it's voice coil. The 'Nominal' or 'RMS' (root-mean-square) rating is the amount of power that can be applied to the speaker under normal circumstances. It's important to note that most speaker manufactures publish two different power ratings: The best method when matching speakers to amplifiers is to use the 'RMS' power ratings instead of 'Max/Peak' power ratings.

Power amplifier for speakers