Vonyx SWA18 - 18" 1000W Active PA Subwoofer with Adjustable Low Pass Filter
The Vonyx SWA18 is a high-performance active subwoofer designed to completely transform the listening experience at events, fixed installations, and mobile DJ setups. Equipped with a powerful 18-inch (46 cm) woofer, this bass reinforcement system is capable of moving an impressive amount of air, delivering deep, vibrant low frequencies with a punchy impact that you can physically feel on the dance floor.
This model stands out for its integrated high-efficiency amplifier with a maximum power of 1000W , eliminating the need for external power amplifiers and greatly simplifying setup. Its "Plug & Play" design allows for direct connection to a mixing console or controller and immediate operation. Thanks to its adjustable low-pass filter (LPF), the user has complete control over the frequency range reproduced by the subwoofer, ensuring perfect acoustic integration with satellite speakers (tops) of any size.
The SWA18 is built for durability on the road. Its wooden enclosure is covered with a tough felt carpet that withstands the wear and tear of transport and protects against scratches, while the metal front grille ensures the woofer cone remains intact against accidental bumps. Whether adding depth to electronic music, reinforcing a live band, or boosting the sound in a pub, this subwoofer delivers the reliability and sound pressure required for demanding applications.
Main features
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Power and Performance: Integrated amplification module that delivers up to 1000W peak power, optimized to get the most out of the 18-inch driver.
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Total Frequency Control: Incorporates an active low-pass filter adjustable via a rear potentiometer, allowing you to select the frequency cutoff between 30Hz and 120Hz to customize the bass response.
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Phase Adjustment: Switchable phase switch (0° - 180°) that allows you to correct wave cancellation problems and temporarily align the sub with the main speakers to avoid sound pressure loss.
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Versatile Connectivity: It has inputs in both XLR (balanced) and RCA (unbalanced) formats, facilitating connection with professional and home equipment.
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Expansion Capability: Includes XLR "Thru" line output for daisy-chaining multiple subwoofers to increase system power.
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Professional Mounting: It has a 35mm insert cup (Top Hat) on top to install a spacer bar and place the satellite speakers directly on top of the sub.
Product benefits
Adding the Vonyx SWA18 to your sound system not only increases the overall volume but also frees your main speakers from the burden of reproducing the lowest frequencies. This results in a much cleaner overall sound, with more defined mids and crystal-clear highs, as each component of the system operates within its optimal range. Furthermore, its acoustically dampened carpet finish reduces unwanted cabinet resonances, providing a drier and more precise bass response.
Use cases
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Mobile DJs and Disco Mobiles: Ideal for weddings and parties where quick setup is required but with a "club" sound.
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Bars and Pubs: Perfect for permanent installations that need to enhance background music or karaoke nights without taking up much space with external amplifiers.
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Small Bands and Live Performances: Provides the necessary body to the bass drum and electric bass in medium-sized venues.
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House Parties and Private Events: Its RCA connection allows it to be easily connected to entry-level DJ controllers or home audio systems.
Frequently Asked Questions
Do I need an external amplifier to use this subwoofer?
No, the Vonyx SWA18 is an active subwoofer, meaning it already has the amplifier built into the enclosure. You just need to plug it into a power outlet and send it an audio signal from your mixing console.
How do I configure the low-pass filter (LPF)?
The rear control lets you choose the frequency range the subwoofer reproduces. If your main speakers are small (8 or 10 inches), you can set the crossover point higher (around 100-120Hz). If you're using large speakers (15 inches), you can lower the crossover point (around 80Hz) so the sub handles only the deepest bass frequencies.
Can I connect two SWA18 subwoofers together?
Yes, you can use the XLR "Thru" output of the first subwoofer to send the signal to the input of the second, creating a system with greater punch and coverage.
Project description
This 18-inch active subwoofer is designed for PA sound reinforcement applications. The system integrates a 1000W amplifier and offers a frequency response of 30Hz to 120Hz with a maximum SPL of 119dB. It features an adjustable low-pass filter (LPF) on the rear panel, as well as a phase switch (0/180 degrees) for acoustic alignment. The connection panel provides XLR and RCA line inputs, plus an XLR link output for daisy-chaining additional units. The enclosure is constructed of wood with a durable black carpet finish, includes a metal grille for the driver, and a 35mm top-mount socket for satellite masts. Power supply: AC 220-240V.
