How do you match speaker power to amplifier?

Generally you should pick an amplifier that can deliver power equal to twice the speaker’s program/continuous power rating. This means that a speaker with a “nominal impedance” of 8 ohms and a program rating of 350 watts will require an amplifier that can produce 700 watts into an 8 ohm load.

What is 400 watts RMS?

Sample Amplifier Power Rating Chart:

# of Speakers	Each Speaker Rating (RMS)	Total Speaker Rating (RMS)
1	100 watts	100 watts
2	100 watts	200 watts
3	100 watts	300 watts
4	100 watts	400 watts

Is a 400 watt amp too much power for a speaker?

However, you could also feed the speaker too much power with an amp rated at 400 watts or 200 watts. This is because the amp’s shorthand rating (500 watts @ 4 ohms) is only part of the story. And even an amp’s long-form power rating doesn’t specify the max level of power it will put out.

Will a 500W AMP damage a 400W cabinet?

If your amp works at a min of 4 ohms (eg. 500 W @ 4 ohms), and you run it through an 8 ohm cabinet the amp does not work at the full 500 W, probably closer to about 70\% of the 500 W (eg. 350 W @ 8 ohms). That said, you can damage a speaker cabinet running 350 W into a 400 W cabinet as said before listen with your ears.

Can I run a 1000 watt amp in a 300 watt cab?

As long as you don’t crank the amp anywhere close to full volume it will be fine. its just a rating! use your ears. you can run a 1000 watt amp into a 100 watt speaker if you do it right. Click to expand… “Use your ears”- that would be great if more people knew what to listen for. I use a 900W amp into a 300W cab now and again and it’s fine.

How much THD can a 500 watt amp deliver?

Consider, for example, that your amp might be rated at 500 watts RMS driven continuously into 4 ohms w/ less than 0.1\% THD from 20Hz to 20 kHz. If you drive its input hard enough, it’s capable of delivering well north of 500 watts RMS into 4 ohms, but at a level of total harmonic distortion well north of its rated 0.1\% from freq X to frequency Y.