Buy Speaker Components
There is a huge range of designs and brands on the market to suit your specific needs, take your time when shopping to ensure you get a compatible size for your speaker. Most speaker components can be easily swapped out using similar or upgraded units, which means you don't have to completely replace a whole system just because of a damaged driver.
Upgrading cheaper systems with better quality woofer and tweeter units can give them a new lease of life for much less cost than buying new equipment. Passive and active crossover units are available for both internal and external use, be it as replacements in a system, or as a new feature you are including as an upgrade. Power handling is also a factor, as both have far more flexible loading capabilities compared to a dome type which is restricted by the dimensions and material construct of its driver.
Speaker Parts
Most larger PA speakers these days are 3 way or full range, and there are PA Friendly speaker parts within this category. Configuring the woofers, tweeters and horns accurately will grant you the optimum frequency handling capability. Doing so lends itself to all musical styles as listeners enjoy this enhanced, balanced sound.
Loudspeaker Components
The main loudspeaker component is the woofer driver, on live PA speakers this will often be a large, 12 to 15-inch diameter to produce the larger SPL and low frequencies that are required of a party or professional environment, the more air mass speaker parts can shift, the louder and more defined the sound will be. A midrange driver can also be introduced, these will often be 2 to 4 inches diameter and are much more delicate than the woofer as they simply won't be required to deal with the larger electrical current or movement that the bass notes require. They will fill in everything from soft drum lines to a large part of the vocal spectrum, so play a hugely important role in the overall sound of a system, especially a larger live usage PA.
Topping things off is the tweeter, which is specifically designed to reproduce the high-frequency parts of the incoming signal. It does so using the same electromechanical principles as the other drivers, though depending on the actual type and design of tweeter, how it deals with the conversion can be done in several ways. Though there are at least 8 proven commercial tweeter designs, most PA and live equipment will be found to use either the piezo type or the larger horn type. The main reason for this is the dispersion characteristics, as both have a much wider throw range than a conventional hi-fi style dome tweeter.