Sistemas em Coluna

Essential Information About PA Column Speakers

Column speaker systems are becoming increasingly popular: You’ll find them used by DJs, at concerts, and in conferences. But why is that? And what should you look for when buying one? Let's find out!

1. Principle and Operation of PA Column Speakers

The principle of PA column systems is simple yet highly effective: They consist of a subwoofer, a tall column element with multiple stacked speakers inside, and sometimes a distance spacer to elevate the speaker from the bass module. This results in a fully functional, mobile PA system in column form. Since most of these systems are active, meaning they have a built-in amplifier, there is no need for an additional power amplifier or powered mixer.

The setup and dismantling of PA column systems is incredibly straightforward. Simply place the subwoofer where needed, attach the column elements, and connect the system to a power source – done! Since there are no cables to run between speakers and the subwoofer and no stands to set up, both the assembly process and the storage and transport requirements are significantly reduced.

After your gig, simply disassemble the components, and transport them easily—no more struggling with heavy and bulky PA speakers. Speaking of bulkiness: Compared to traditional PA setups with large top speakers, column speakers offer a far sleeker, more discreet appearance. If you want your sound system to blend seamlessly into an event without drawing attention, column speakers are an excellent choice.

Key Features of PA Column Speakers:

• Compact PA sound system
• Easy setup and teardown
• Convenient portability
• Balanced sound reproduction
• Superior sound dispersion

2. Sound Characteristics

The sound performance of column systems is one of their strongest selling points, which can be attributed to two key factors:

• Well-balanced frequency response covering bass, mids, and highs
• Exceptional sound dispersion and extended range

The first factor is due to the combination of a subwoofer and multiple speakers handling mid and high frequencies, creating a full-bodied sound with solid bass and crisp highs.

The second factor results from the column design itself: Since the speakers are stacked vertically and often reach heights of over two meters, sound is evenly distributed throughout the venue. This means that volume remains consistent even at a distance—a major advantage for audiences at the back of a room. In many cases, these compact PA column systems can effectively fill large spaces with sound, similar to line arrays.

3. Additional Features

Most PA column systems are active and do not require external amplifiers. Many models also include advanced features to enhance usability:

• Inputs: Most column speakers feature XLR/Jack combo inputs, with some models also offering auxiliary (3.5mm) or RCA inputs.
• Bluetooth: Allows for wireless audio streaming from a smartphone or tablet.
• DSP (Digital Signal Processing): Offers preset sound modes for different performance environments at the push of a button.
• Built-in effects: Many systems include EQ adjustments, reverb, delay, and limiters to refine sound output.
• Battery operation: Some models are battery-powered, allowing for use in locations without power outlets.

4. Buying Checklist

What should you look for when selecting a column PA system? Here’s a checklist to help you find the ideal model:

• Power Output: The wattage should match the event size. Options range from compact 200-watt RMS units to more powerful models exceeding 1,000 watts. Some systems also allow multiple units to be linked for increased output.
• Speaker Configuration: Larger speaker setups with more drivers provide greater coverage and louder output. A system with an 8” subwoofer may be suitable for small gigs, but for deep, punchy bass, a larger subwoofer is recommended.
• Inputs and Connectivity: Consider how many microphones, instruments, or external audio devices you need to connect. Some systems also feature Bluetooth for wireless streaming.
• Built-in Effects: If you need sound customization, look for a system with built-in EQ, reverb, or delay options.