• Crushingly Intense Bass Performance
  • Ultra Low Distortion
  • Super-High Continuous Output
  • Capabilities Significantly Exceed Many Competing Boxes
  • Confidence-Inspiring Reliability
  • Lowest Sub for Its Size on the Market – Down to 21Hz (-3dB)


The ZV28 Profundo Powered Subwoofer can deliver bass so low as to be at the very limits of human hearing. The advantage of this capability, even if you rarely need it, is that frequencies that stress lesser subwoofers are reproduced effortlessly and powerfully by the ZV28. Supplying intensely physical bass and able to reproduce the deepest frequencies of modern music, it was independently measured at Ultra Music Fest 2013 to achieve flat frequency response to 21Hz (-3 dB) at audience distance. Crucially, it is also fully reliable and offers a two-year no-fault warranty on the woofers above and beyond the standard warranty. We are able to offer this extended coverage due to the ZV28s (and all BASSBOSS subs!) innovative design and engineering that utilizes the best of current technology to virtually eliminate blown drivers.

The ZV28 Profundo Sub is a self-powered, self-processing, self-protecting, vented, direct radiating subwoofer with a large internal volume and a very low tuned frequency. Anti standing wave baffles and pass-through dampers minimize upper resonances while very large ports maximize low frequency performance at high output. Protection systems and limiters control all manners of overload, including thermal, excursion and clipping. The ZV28 is optimized for full-power operation. It is designed to operate at full rated RMS power throughout its operating range while ensuring the woofers remain within their excursion and thermal limits.

The ZV28 delivers consistently flat frequency response from 1 watt to 3000 watts. A pair delivers response that is -3dB at 21 Hz. No equalization is required to achieve this response. The response is available at high levels in real-world applications. Thanks to the low-bass sensitivity and the robust components, massive low end is delivered when the prodigious power is applied. The ZV28’s sensitivity is achieved, and maintained, though careful optimization, the use of premium components and innovative, proprietary thermal management techniques.

The ZV28 is the low-low end of the new BASSBOSS SubMergence System. The SubMergence System combines the extended low-frequency range of the ZV28 with the high impact bass range of the BASSBOSS Z-5/D Motiv Horn to handle the massive dynamic transients. The two systems are uniquely merged together to form a synergistic whole that is greater than the sum of its parts. We created this effect by combining a number of disparate loudspeaker designs that traditionally were not used together into a massively powerful combination. By pushing the envelope on loudspeaker design and use, we’ve been able to create a uniquely enjoyable bass sound that is not being offered by any other manufacturer. The effect is one of swimming in liquid bass while being hit by solid bass, merging the two most desirable qualities of lower frequencies into one integrated, musical system.

The ZV28 is not a paper tiger. It delivers what it promises. Other subwoofers can be made to look similar on paper, but come up short in the field. Beware of loudspeaker systems that require processing to achieve their claimed frequency response! Those systems are still subject to the excursion and thermal limits of their drivers. Boosting low frequency EQ to achieve extended low-frequency response on specification charts isn’t the way to deliver superior results at maximum power. In fact, boosting low frequency EQ is likely to result in excessive distortion or woofer damage at full power. Under those circumstances the system cannot be utilized at full power. If limiting is applied to avert such failure, that limiting prevents the realization of the claimed frequency response at full power. The ZV28 does NOT have low-frequency EQ boost and does NOT suffer from these limitations. It faithfully delivers extremely low bass, very loudly, where most others either roll off or die trying.

The ZV28’s woofer cones are waterproofed so the cabinets are safe to use outdoors where they may encounter rain, in nightclubs where drinks may be spilled on them, or in dusty environments that may leave the drivers needing a thorough cleaning. The warranty does cover failed drivers, including burned voice coils, for 2 years from the date of purchase. If a voice coil, or anything else, fails within the warranty period, replacement parts will be provided without charge. ( (See warranty documentation for complete details.)


Loudspeaker Description: Double 18″ Subwoofer
Frequency Response (±3 dB): 25-200 Hz
Frequency Response, Pair (±3 dB) 21-200
Frequency Range (-10 dB): 18-250Hz
Maximum Sustained Output: 134dB SPL, 1m, 2pi, half-space, (ground stacked)
Short-term peak output: 137 dB
Nominal Dispersion (°H x °V): 360 x 360


Amplification: 6000W continuous Class D
Processing: Integrated comprehensive DSP for HP, LP and limiting
Electrical Connectors: Neutrik Powercon
Voltage operating range: 100-240V +- 10% Auto-switching power supply
Current draw, nominal: 5A @ 1/8 power (600VA)
Current draw, peak: 30 A
Signal input connector: XLR-F
Signal output connector: XLR-M pass-through only


Enclosure Type: Helmholz resonator enclosure, optimally tuned for extremely low frequency response with good sensitivity and high power handling
Transducer: 2 x 18 ” diameter (457 mm) woofer with 4.5″ (115mm) copper winding voice coil and 56mm peak to peak excursion. Waterproof fiber composite cone
Cabinet Construction: 18mm Baltic Birch plywood. Equipped with 8 handles and interlocking rubber feet
Dimensions (HxWxD): 22.5″ x 42″ x 42″ (23.25″ high with feet)
Net Weight: 225 lbs
Shipping Weight: 240 lbs
Exterior Finish: Weatherproof bonded high-pressure polyurethane
Grill: Perforated, powder-coated black steel


Installation Suspension System: 16x 3/8-16 threaded flypoints
Dolly Cart: Dolly cart with 4 locking casters and recesses to accept interlocking cabinet feet for transporting 1 to 3 cabinets
Covers: Heavy-duty padded nylon transport covers for 1 to 3 cabinets
Compatible Top Boxes BASSBOSS DiaMonAttuned and CCM Series Monitors and Tops

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