When using a power amplifier in your signal chain, you always want to make sure you are using that correctly. It can be easy to destroy your prized gear and or people’s hearing, if you don’t know what you are doing. Listed below are just a few things that can be “good practices” for making sure you don’t fry your PA system.
- Do NOT overpower your Speakers. Overpowering them can cause the tweeters and woofers to blow, and possible sound distortion can occur. Make sure your amplifier is 1 ½ times more powerful than the speakers RMS rating. The amplifier will run more efficiently and allow your speakers to reach their maximum performance.
- Do NOT under-power your Speakers. Even more dangerous than overpowering your speakers, under powering them can cause stress on internal components such as; tweeters, woofers and crossovers. This will cause the speaker to not reach its maximum performance. The best way to counteract this problem is to get a higher rated power amplifier.
- Do NOT plug a powered speaker into a power amplifier. This will definitely result in noise and static. Worse, it could cause damage to both the powered speaker and the power amplifier.
- Do NOT run your amplifier at the wrong impedance. Measured in ohms (Ω), typically 4, 6 or 8. The lower the impedance, the more demand the speakers place on the amplifier, which is why matching the impedance of your speakers to your amplifier is important. The important one to watch for is the dreaded 2 ohm load. It is very easy to create this resistance with your monitor setup or a pair of dual speaker cabinets. However, many power amplifiers cannot handle it. Check out the Magnitude3600 or the Epicenter5202 if you need to power a 2 ohm speaker setup.
- Do NOT attempt to fry bacon on your amplifier. Seismic Audio Amplifiers are meant to power speakers, not fry bacon. Besides, the engineering that has gone into all of our amplifiers means they will never get hot enough to properly cook anything.
- Do NOT run your amplifier with small gauge speaker wire. For the least amount of power loss and speaker damping, you want to use the heaviest gauge that is practical. The length and the gauge should both be factored when deciding on a speaker cable. The longer the cable the smaller the gauge, as well as the shorter the cable the higher the gauge. Also, the amount of watts you are pushing from your amp is a major factor towards what gauge wire you get.
These are just a few things that we hope will help you with setting up your passive PA system. Of course, the best way to get help with that is by giving one of our representatives a call at 1-877-347-6423 or, visiting www.seismicaudiospeakers.com. And remember, always practice “safe audioing”!