the box pro DSP 18 Sub
Best active subwoofer for professional DJs and live event sound reinforcement.
Experience deep, impactful low-end bass with the the box pro DSP 18 Sub, an 18-inch active subwoofer engineered for powerful sound. This unit delivers 800 W RMS power, reaching up to 128 dB and handling frequencies from 30 Hz to 150 Hz. Its DSP control optimizes performance, while flexible XLR connectivity, groundlift, phase switches, and a high-pass filter allow for precise sound tuning. Built with a robust wood housing and bass reflex design, it ensures reliable, optimized performance for any sound system.
$435.00
Owner Satisfaction
4.5
/ 5
Category Rank
2641
/ 6561
#2641 in Speakers
Price vs Category Average
-70%
Below average
Speaker
18
/ "
Who it's for
- Sound engineers needing quick, precise system tuning
- DJs and bands performing in medium-sized venues
- Budget-conscious professionals seeking high-output performance
Who should skip it
- Solo performers struggling with heavy, bulky gear
- Rental companies requiring high brand-name rider acceptance
- Audio technicians demanding advanced, intuitive DSP control
Performance breakdown
Low-End Authority
The 18-inch driver delivers visceral, room-filling bass with impressive depth.
DSP Precision
Onboard processing makes tuning the output for specific venues remarkably simple.
Build Integrity
Robust wood housing ensures durability for demanding, high-volume touring environments.
Output Capacity
800W RMS provides plenty of headroom for medium to large event spaces.
Connectivity Versatility
Comprehensive XLR routing options allow for seamless integration into complex sound systems.
Portability
At 39kg, this unit requires a partner for safe, efficient transport.
Key Specs
Speaker
18"
Power Output
800 W RMS / 2400 W peak
Maximum Level
128 dB
Frequency Range
30 - 150 Hz
Connectors
XLR (L+R) in, XLR (L+R) through and XLR (L+R) crossover out
Features
Groundlift switch, phase switch, switchable high-pass filter (90/120 Hz), M20 screw thread
Dimensions (W x D x H)
550 x 610 x 670 mm
Weight
39 kg
Features
- Delivers deep, impactful low-end bass
- DSP controlled for optimized performance
- Flexible XLR connectivity options
- Includes groundlift and phase switches
- Switchable high-pass filter for tuning
- Integrated M20 screw thread for mounting
- High power handling capability
- Robust 18-inch driver
What customers say
Customers overwhelmingly praise the Box Pro DSP 18 Sub for delivering exceptional value and high performance. The core theme is its powerful, deep bass output, which rivals much costlier professional equipment. Users frequently highlight the integrated Digital Signal Processing as a game changer, offering precise control vital for system integration and driver protection. This flexibility is highly valued by mobile DJs and venue operators. While acknowledged as heavy, its sturdy, road-ready construction is seen as a positive attribute for frequent use. The consensus is that this subwoofer is a phenomenal workhorse, offering unparalleled power and features for its price point, making it a top choice for professionals needing maximum output without a premium investment.
Know before you buy
Yes, the subwoofer features an integrated M20 screw thread on the top panel, which allows you to securely mount a standard distance pole for your satellite speakers.
The high-pass filter allows you to cut low frequencies from your top speakers at either 90 Hz or 120 Hz. This prevents your main speakers from trying to reproduce deep bass, resulting in a cleaner, more efficient sound across your entire system.
The subwoofer is equipped with a dedicated groundlift switch. If you experience unwanted buzzing or hums caused by ground loops in your audio setup, engaging this switch can often resolve the issue.
With 800 W RMS power and a maximum output of 128 dB, this unit is designed to provide substantial low-end reinforcement for medium to large-sized venues. Its robust wood housing and bass reflex design ensure it can handle the demands of professional use.
No, this is an active subwoofer, meaning it has a built-in amplifier. You only need to connect your audio source via XLR and plug the unit into a power outlet.
The integrated DSP (Digital Signal Processing) is pre-configured to optimize the subwoofer's performance. It ensures that the driver and amplifier work in harmony to deliver consistent, punchy bass while protecting the internal components from distortion.
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