Speaker and PA brands we carry in-store
What is a PA system
PA stands for public address system ( Sound reinforcement ). The PA system amplifies the performers sound electronically to get the sound to the audience. It consists out of several components, they vary but tend to handle the same functions.
- Converting acoustic audio to digital signal – Microphones / line inputs
- Processing and mixing the signal – mixing consoles / effects units
- Amplifying signal with internal or external amplifier
- Playing back the sound – speakers
Speakers play a critical role in sound quality in live performance. There are several factors that needs to be taken into consideration.
The size of the venue where you are playing normally determent’s the size and wattage of the speakers to use. Smaller venues will need between 300 and 500 watts while large venues will need at least 500 to 1000 watts. Then the more people you have in the venue, the more sound you’ll need. Bodies are great sound absorbers. Then the type of music that gets played, if its a comfortable acoustic set or some calming classical music you will need less volume, but if its some prog metal or heavy rock music you will definitely need to have more volume. The portability and transportation will also need to be taken into consideration.
Active speakers has a built in power amplifier and crossover and just needs a power source (or battery) to operate. Other than the speaker itself, you only need a sound source and bobs your uncle. The active speaker has simplified the pa market. But isn’t always the best option for larger pa installations and complex permanent installations in venues and auditoriums.
Passive speakers require an external power amplifier to operate. And sometimes crossovers. In bigger installations its good to have separate components because of the power you are dealing with.
Bi-amplification is when a signal get split into higher and lower frequencies. The low frequencies go to the larger driver ( woofer ) where the higher frequencies go the the smaller driver ( tweeter )
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