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Passive PA Speakers

Passive PA speakers connect to a PA amplifier to create a sound system. Passive speakers can be made of wood or plastic, and are available in many many sizes. The bigger the woofer size, the more powerful and distinct the bass performance. See here for our  DJ Guide for PA Speakers

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Passive PA speakers connect to an amplifier to create a sound system. Passive speakers can be made of wood or plastic, and are available in many sizes. The bigger the woofer size, the more powerful and distinct the bass performance..

 

Passive speakers differ from Active speakers in the fact that they do not have a built in amplifier, so the speaker needs to be connected to the amp via a speaker chord. Passive speakers are for someone who knows their trade well, as the speaker and amplifiers need to be matched up correctly, so to avoid burning out the voice coils, like wise if you attempt to generate more volume than is capable it can cause the unit to fry out.

 

Passive speakers are suitable for both indoor and outdoor use, so the location of the venue will not be an issue with their usage, as they are more than capable of performing wherever they are. Of course if you have the adequate knowledge and expertise, then a passive speaker may be for you as they can be cheaper than an active speaker, although you will need to purchase an external amplifier to support the speaker. An issue that they have is that they can tend to lose heat, and therefore some of the speakers power in the process.

 

Because they are passive speakers, they can easily be upgraded along with the amplifier so that you can acquire the desired effect, also the bigger the woofer size, the more powerful and distinct the bass performance. Although amplifiers can be over-built, which will then support a wide range of speakers, although that should not deter you as it can be cost effective to experiment with the settings. The ease of use and sound quality will ultimately be down to the person’s expertise; therefore if you have the knowledge to do it, then passive speakers may very well be the speakers that you need.

 

So if you decide that this is the speakers that you need, or you require some added assistance and advice, then please do not hesitate to contact us.

 

The best compromise is an almost equal match. Take into consideration the power rating at the nominal impedance of your amplifier (eg. 250 watts @ 4 ohms) and look to match with a specific speaker. Recommendations vary, but we lean towards having an amp with slightly more power than your speakers specific, this gives you every chance of a 'clean signal' at the highest level. eg. We'd recommend a 300 Watts per channel @ 4 ohms amp with 250 Watts per channel @ 4 ohms speakers. Confusingly, most amps are rated at 4 Ohms, but speakers @ 8 ohms... simple mathematics help you here - eg. if a speaker is 200 Watts @ 8 ohms, it's relatively safe to assume that speaker will be 400 Watts at 4 ohms - inversely proportional!

 

If you're not sure of the best match for your passive PA speakers or PA amplifier, give us a call, we'll happily help!

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