How to Choose an Effective PA System

 How to Choose an Effective PA System

Whether or not we realize it, PA (public address) systems are ubiquitous in everyday life. Retail stores, bars, restaurants, art galleries, schools, gyms, houses of worship, airports and music venues rely on PA systems to deliver music, speech, and other audio. Some systems are small, perhaps even hidden; other PA systems are built like virtual walls of sound intended to blast audio to millions. The Grateful Dead’s 1974 “Wall of Sound” is an iconic example. The Dead’s concert PA system included hundreds of speakers tethered together to produce over 25,000 watts of power. This was certainly a far cry from a 1920s-era Magnavox PA system capable of only 10 watts. “PA system” is a nebulous term that can include speakers, inputs, amps, preamps, mixing boards, etc., — whatever delivers live or recorded signals to an audience.

PA Speakers and Subwoofers

Speakers are the most prominent part of every PA system. They take electrical signals from an amplifier and convert them into room-filling sounds. PA speakers demonstrate a huge range in power, size, and function. For example, some speakers pack 1,000 watts of power — ideal for larger venues. While some loudspeakers deliver 150 watts and are better suited for classrooms, retail stores, or other small-to-medium spaces. And then some speakers are 250-watt bi-amp, often used as an onstage monitor for live venues. Some people supplement PA speakers with separate PA subwoofers. Subwoofers enhance bass frequencies and provide a rumbling, venue-shaking low end.

Portable PA Systems

Choosing the right portable PA system depends on how — and where — you plan to use it. Most of today’s portable PAs combine live audio inputs, mixing, and speaker amplification into an “all-in-one” unit. If you’re a singer/songwriter who’s bouncing from one gig to the next, then solo performance systems are perfect for your live audio needs. Worship leaders or public speakers might look into something that brings crisp sound into any boardroom or other small venue. For a compact coffeehouse setup or small-scale public speaking, check out our PA systems that have at least 90 watts.

PA System Accessories

Of course, sophisticated PA systems include more than just speakers. Zhenwei carries a variety of wall mounts, speaker stands, carrying cases, and more. If you’re looking to permanently elevate PA speakers throughout a ballroom, school auditorium, or venue, then you might look into speaker wall mounts. Speaker stands offer a more portable way of elevating speakers.

Carrying cases and bags provide a smart way to safely move gear — speakers, stands, etc., — from location to location. When it comes to speakers, most carrying cases are made for specific speaker models. Padded interiors and reinforced carry handles make these bags a convenient, durable way to protect your gear on the road. Whether you’re looking to expand your PA system or start from scratch, Zhenwei carries many products and brands for every setting. Call one of our Sales Engineers for advice or browse our extensive online catalog today.