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QSC KS118 Active 18 Subwoofer
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QSC KS118 Active 18 Subwoofer
The KS118 is a very high output active subwoofer producing impressive low frequencies for mobile entertainment, AV production, clubs and performance venues.
QSC KS118 Active 18" Subwoofer
QSC

Item #: 15982747

QSC KS118 Active 18" Subwoofer

88% of respondents would recommend this to a friend

Item #: 15982747

USD 2689

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Order now and get it around Wednesday, September 16
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The KS118 is a very high output active subwoofer producing impressive low frequencies for mobile entertainment, AV production, clubs and performance venues.
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What Stands Out

Powerful Bass
The QSC KS118 delivers deep, impactful low frequencies with an 18-inch driver, ensuring that your sound experience is enhanced, making it ideal for live performances and professional audio setups.
Lightweight Design
Despite its power, the KS118 is designed to be portable with a lightweight build, allowing for easy transportation and setup, perfect for mobile DJs and event venues.
Versatile Connectivity
Equipped with flexible input options and built-in DSP, the KS118 provides seamless integration with various sound systems and allows for tailored sound optimization, enhancing overall audio quality.

Product Details

Shop the latest QSC KS118 Active 18 Subwoofer at the best price online. Get fast and reliable shipping to Ubuy British Virgin Islands. Order now and elevate your audio experience!
  • Very high output active subwoofer producing impressive low frequencies
  • Features an 18-inch direct radiating driver powered by a 3600W Class D amp
  • On-board DSP optimizes and protects system performance
  • Ability to array two units in a cardioid arrangement
  • Rugged enclosure with comfortable handles and four low noise casters
  • Selectable DEEP mode for extremely low frequency extension and adjustable crossover and delay
Package Weight177 Pound

Who Should Buy?

Suitable For
  • Live Sound Engineers

    Perfect for professionals needing durable, powerful bass for concerts, ensuring music clarity and audience satisfaction.

  • Mobile DJs

    Ideal for mobile entertainers who require reliable, portable subwoofers to deliver impactful bass at various venues.

  • Home Theater Enthusiasts

    Great for users looking to enhance their movie and gaming experience with deep, immersive sound quality.

Not Suitable For
  • Budget-Conscious Users

    Not suitable for individuals seeking lower-priced options; the KS118 is a premium product with a higher price point.

Product Description

QSC KS118 Active 18" Subwoofer

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Customer Questions & Answers

  • Question: What are the key features of the QSC KS118 Active 18 Subwoofer?

    Answer: The QSC KS118 Active 18 Subwoofer boasts a powerful 18-inch driver and a built-in Class-D amplifier, delivering 3600 watts of peak power. Its lightweight design enhances portability, making it ideal for mobile sound setups. The sub features advanced DSP technology for precise sound shaping, allowing for an optimized bass response suitable for various acoustic environments. Utilizing a durable wooden cabinet, it reduces resonance, ensuring clear sound. This makes the KS118 ideal for live music events, DJ settings, and professional sound installations, enhancing the low frequencies for a richer listening experience.
  • Question: How does the QSC KS118 compare with other subwoofers in its category?

    Answer: The QSC KS118 stands out in its category due to its high power output and robust build quality. Unlike many comparable models, it integrates advanced DSP for enhanced acoustic performance. Its frequency response ranges from 40 Hz to 130 Hz, providing tight and accurate bass reproduction that is essential for both music and sound effects. This makes it the preferred choice for event organizers seeking deep, impactful bass without compromising sound clarity. Users have reported great satisfaction in various settings, from concert venues to large corporate events, making it a versatile option.
  • Question: What types of events is the QSC KS118 best suited for?

    Answer: The QSC KS118 is ideal for a myriad of events, including live concerts, DJ performances, corporate functions, and large gatherings. Its high output power and extended low-frequency response ensure that it can fill large venues with deep, resonant sound, captivating audiences. In addition, whether you're hosting an outdoor festival or an indoor club night, its lightweight construction makes it easy to transport, while its reliability meets the demands of professional sound engineers. You’ll appreciate its performance whether you're amplifying music, speeches, or special effects.
  • Question: What is the frequency response range of the QSC KS118?

    Answer: The frequency response range of the QSC KS118 is between 40 Hz to 130 Hz, which is specifically engineered to deliver powerful low-end performance. This range allows the subwoofer to reproduce deep bass sounds effectively, enhancing both music and sound effects. Such a frequency response is crucial for genres like electronic, hip-hop, and live band performances where bass clarity can make a substantial impact. Therefore, it ensures that attendees experience the full depth of audio, making it a favorite among professional audio engineers.
  • Question: Can the QSC KS118 be connected to multiple audio sources?

    Answer: Yes, the QSC KS118 enables connectivity to multiple audio sources via its balanced XLR inputs and outputs. This feature allows users to daisy-chain multiple subwoofers, expanding audio coverage effectively. It can be connected to mixers, audio interfaces, or even powered speakers, providing flexibility for various sound setups. For instance, in larger venues, you can configure several KS118 units together to achieve a more immersive sound experience that ensures even bass distribution throughout the audience area.
  • Question: Does the QSC KS118 come with a mounting option?

    Answer: The QSC KS118 includes integrated M20 threaded pole mounts, allowing for easy placement of speaker poles. This feature is particularly useful for setups requiring elevated sound sources, ensuring optimal sound projection and audience coverage. It’s designed to work seamlessly with QSC's full-range speakers, making it an excellent choice for those looking to create a robust sound system. Utilizing this option can significantly enhance performances, especially in venues where floor space is limited, allowing the full-range speakers to be positioned above the subwoofer.
  • Question: Is the QSC KS118 suitable for outdoor events?

    Answer: Absolutely! The QSC KS118 is suitable for outdoor events due to its rugged construction and high output capabilities. Its durable enclosure protects the internal components against the elements, making it reliable for various weather conditions. Moreover, its robust audio performance can fill open outdoor spaces, ensuring that attendees experience crisp, clear bass. This versatility means whether you’re planning a music festival or an outdoor corporate gathering, the KS118 can handle the demands of live sound in outdoor settings.
  • Question: What are the power requirements for the QSC KS118?

    Answer: The QSC KS118 operates on a standard AC voltage, typically requiring a power outlet that delivers 85-132 VAC at 50/60 Hz. It's important to ensure that the circuit can handle the device’s power draw to maintain optimal performance. The built-in Class-D amplifier efficiently uses power, delivering high output while minimizing energy consumption. For portable setups, using a generator can be a viable option, making it perfect for outdoor events or venues without accessible AC power, ensuring your sound system remains uninterrupted.
  • Question: How portable is the QSC KS118 Active 18 Subwoofer?

    Answer: The QSC KS118 is highly portable, thanks to its lightweight design, which weighs around 70 pounds. Its robust construction is combined with an ergonomic design for easy transport. Built-in handles on the sides allow for secure gripping during movement, making it practical for mobile DJs and sound engineers. Furthermore, its compact dimensions mean it fits well in standard vehicles, enhancing its transportability for gigs or events. This mobility ensures that no matter where the event is located, the KS118 can be set up with minimal hassle.
  • Question: Where can I buy the QSC KS118 Active 18 Subwoofer?

    Answer: You can buy the QSC KS118 Active 18 Subwoofer at Ubuy in British Virgin Islands. Ubuy offers a convenient online shopping experience, featuring detailed product descriptions and competitive options tailored for your needs. They provide easy navigation to help you select the best audio equipment while ensuring purchase confidence through their transparent policies. By purchasing from Ubuy, you can explore various audio solutions along with the QSC KS118 to create the perfect sound setup.

QSC Stage Subwoofers Editorial Review

QSC KS118 Active 18" Subwoofer is a powerful audio solution beloved by DJs and event planners. This model features an impressive 3,600W Class D amplifier, delivering chest-thumping bass frequencies as low as 35Hz, making it ideal for energetic environments like weddings and parties. Moreover, it incorporates built-in DSP with convenient presets and a durable construction with casters. Users have commented on its ability to maintain sound quality without distortion, showcasing its potential in both omnidirectional and cardioid modes for various setups. Many rave about its output-to-size ratio, further emphasizing its place as a leading subwoofer for mobile entertainment.

Customer Reviews & Ratings

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Pros

  • Impressive bass response down to 35Hz
  • Lightweight and portable design with built-in casters
  • Built-in DSP simplifies setup and controls
  • Compatible with various top speaker models
  • Robust build quality for road use

Cons

  • Minor assembly adjustments may be needed for optimal sound

Platform Trust & Buyer Confidence

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“Easy to use and always helpful and sorts any issues I've had past and present”

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“The delivery was fast and the product came undamaged and authentic.”

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27 August 2026 · via Trustpilot
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Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

USD 2689

Order now and get it around Wednesday, September 16

QTY:

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • 18-inch direct radiating driver powered by a 3600 watt class D amplifier
  • Onboard DSP optimizes and protects system performance including the ability to array two units in a cardioid arrangement
  • Highly transportable with comfortable handles and four low noise casters
  • M20 Threaded pole receptacle accepts 35 mm pole for easy vertical deployment with full-range loudspeakers
  • Selectable DEEP mode for extremely low frequency extension as well as adjustable crossover and delay
  • Optional KS-LOC security cover prevents unauthorized tampering of controls

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