Fullblast Sound

San Antonio has it’s own gourmet option for all things Audio, Video and Lighting. We are authorized dealers for a wide range of entertainment equipment. Custom installations, maintenance and rentals make us the only ones to call for your entertainment system needs.

Looking for a DJ?

We have elite DJs who are better than the best.

Ever notice how all the other Guys have the “best DJ” in town? Fullblast DJs are so much better than the competition, you cannot afford to risk not using our entertainment. We never put ads in the local classifieds looking for DJs. Fact is the other Djs would never be hired for any of our shows. PERIOD!

Call us now!

(210) 489-0492






Once you feel its power, nothing else comes close.

  • Groundbreaking Performance

  • Super-High Continuous Output

  • Deepest High-Output Sub for its Size

The ZV28 Profundo Subwoofer delivers bass so low as to be at the very limits of human hearing.

Notes that are simply not present with other subwoofers are fully realized by the ZV28, and frequencies that stress lesser subs are reproduced effortlessly and powerfully.

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ZV28 Profundo Powered Subwoofer

Must be felt, and heard, to be understood


 Unparalleled, swimming-in-it deep, deep bass.

Experience full, rich sound that redefines what music can feel like. The ZV28 makes modern dance music come alive by faithfully reproducing the very low frequency material that is not heard with other subs.

ZV28s were independently measured at Ultra Music Fest 2013 by Doug Fowler of ProSoundNews to achieve flat frequency response to 21Hz (-3 dB) at audience distance. Doug wrote in his article:

“This thing…will blur your vision and modulate your voice, no problem… This thing is sick.”

Don't hold back!


BASSBOSS subs are optimized for full-power usage.

Multiple proprietary protection technologies ensure that the woofers remain within their excursion and thermal limits, so they don't break or burn like other subs. BASSBOSS provides much higher levels of deep bass than mass-market subs, reliably.

With plenty of headroom to keep up with the most enthusiastic crowd and not run out of bass.

So turn it up, and keep it up. BASS is good for you.

BASSBOSS not responsible for noise complaints.

It truly has changed my life.

I gig 4 or 5 times a week and every gig it’s a head turner. It gets me great response. I see how the bass translates to the dance floor. It helps people move.”

DJ JBSpecial – James Bowen – ZV28 Review – Youtube


Hand-Built Cabinets

The ZV28 is a vented, direct radiating dual 18″ subwoofer with a large internal volume, extensive bracing and a very low tuned frequency. Anti-standing wave baffles and pass-through dampers minimize upper resonances. Very large ports maximize low frequency performance at high output.

For larger events, several arraying options are available. Block arrays, side-by-side arrays and front/back Cardioid arrays can be deployed securely thanks to the interlocking feet. Presets are accessed in the DSP.

BASSBOSS cabinets are hand-built in the USA. They are constructed from 18mm Baltic Birch plywood, using dado joints, screws and advanced composite adhesives.

Created to stand up to intense usage. The cabinet is finished in an extremely rugged, black polyurethane coating. Drivers are protected by a black powdercoated, perforated steel grill. The amp is recessed in the back of the cabinet to protect it from damage, direct sun or moisture.

Prodigious Amplification

A 4000W RMS amplifier with integrated, comprehensive DSP is included. The amplifier is rated for RMS output using continuous sine wave signal.

This is not a Peak or Burst power rating. BASSBOSS uses only continuous RMS power ratings because you’re not going to be using your sub in millisecond bursts. For subwoofer applications, Peak and Burst power ratings are largely irrelevant.

Capable of delivering 4000W of continuous output. This ensures the amplifier isn’t the limiting factor in the output of low frequencies. Providing abundant power prevents overheating issues. It virtually eliminates the damage that clipping an amp that’s too small can cause.


Rugged Drivers

All that electrical power is converted into acoustical power by a pair of 18″ neodymium motor woofers. These premium-quality, drivers feature split-wound 4.5″ copper voice coils, and peak-to-peak excursion capability of up to 60mm.

High-intensity Neodymium magnets are lighter and provide higher efficiency so the result is a lighter and louder cabinet. Split-wound coils produce a more linear force through the range of movement of the cone, which results in lower distortion and improved linearity at high output.

The cones are waterproofed to protect them from possible, accidental exposure to moisture such as rain or spilled beverages. Waterproofed woofer cones also permit the cleaning of drivers that have been soiled in a dirty or dusty environment with the use of a damp cloth. Keep the amplifiers dry and party on!

Waterproofed cones in all products. Optional weatherized and weather resistant loudspeakers have the same acoustical performance as our standard options. If your system is likely to be exposed to rain, ask about IP rated amplification options. If you have need of a system for outdoor installation, ask about Weatherized products.

Focused Tuning

BASSBOSS subs can be connected directly to your mixer with nothing but signal cable in between. The built-in processing is comprehensive and yet minimal manipulation is applied to the signal. The processing includes only a high pass filter and a low-pass filter. There is no need for any EQ in the signal for the speaker to provide a broad, flat frequency response. A sophisticated limiter system protects the woofer from thermal and over-excursion damage.

Plug-and play with peace of mind. Multiple, sophisticated protection systems make the loudspeaker virtually indestructible. You can turn on and turn up, all night, without fear of over-driving to the point of damage.

True Specifications

BASSBOSS technical specs are based upon measurements of continuous performance capabilities in normal usage. Other manufacturers may specify output based on calculations rather than measurements; measurements outside the operating bandwidth; or on ‘Burst’ or ‘Peak’ readings.

BASSBOSS specifications are conservative compared to most manufacturers. They reflect what the products will achieve, consistently, in the real world. Since the real world is where you’ll be using your gear. 

Read more about BASSBOSS Designer David Lee’s specifications philosophy on ProSoundNetwork.



Serious Business Subs

Chris P., Phunkin Good Times

My favorite speakers I’ve ever experienced. I take these places where I am booked for parties and guarantee the host that the police WILL come, just a matter of time Plug and Play baby! I’ll take the Pepsi challenge with these bad boys against any other, any day of the week.


Smooth low end, detailed bass. This is an excellent sounding subwoofer.

Morphed Productions

This is a bad-ass beast of a sub. No one can believe what it will do when you turn it on!


They are beasts.

Don B.

I got to mix with 4 of these a side with a RCF line array. great subs I pounded the crap out of them and they just laughed at me…


If you like it low, then look no further.

Adubs DJ Service 

The only subwoofers i know of that can continuously hit 21Hz at audible levels without breaking a sweat or tripping a breaker. Whether they are playing soft and quiet or you’re pushing them to the limit, they retain their sound quality and frequency range. Genre doesn’t matter, everything from the deepest pipe organ to the bassiest EDM song, you can’t beat the frequency range or the sound quality. Very musical, they are not “boom boxes” like most. Absolutely outstanding customer support.


Loudspeaker DescriptionExtended Low-Frequency Dual 18 Inch Powered SubwooferFrequency Response (+-3 dB)24 – 90 HzFrequency Response, Pair (+-3 dB)21 – 90 HzMaximum Sustained Output134 dB SPL, 1 meter, half-space (ground plane)Max SPL (Peak)*142 dBNominal Dispersion (H° x V°)360 x 360 – Cardioid Mode Available with Multiple Boxes


Amplification4000 Watt Continuous RMS Class D Subwoofer AmplifierProcessingIntegrated comprehensive DSP provides high pass, low pass, phase alignment and limitingElectrical Connectors, AmplifierNeutrik powerCON Input (Blue) NAC3FCAElectrical Connector, MainsStandard US 3-pin 120V electrical plug: NEMA 5-15 (Edison), Optional electrical plugs available, including L5-30 and others, upon request.Voltage Operating Range90-132VAC, 55-65HzCurrent Draw, Nominal564 W, 4.7A @ 120 Volts (typical, 1/8 max power)Signal Input ConnectorXLR-FSignal Output ConnectorXLR-M (pass-through only)


Enclosure TypeDirect radiating, vented enclosure, optimally tuned for extremely low frequency response with good sensitivity and high power handlingTransducer2 x 18 in. diameter (457 mm) neodymium motor woofer with 4.5 in. (115 mm) copper winding voice coil and 56 mm (2.2″) peak to peak excursion. Waterproof fiber composite coneCabinet Construction18 mm Baltic Birch plywood, extensively braced. Equipped with 16 flypoints, 8 steel handles, 2 pole sockets, 4 large rubber feet, and 4 interlocking foot pocketsDimensions (HxWxD)22.5 in. x 42 in. x 42 in. (23.25 in. high with feet)Net Weight225 lbsShipping Weight240 lbsExterior FinishRugged, weatherproof, black textured, bonded high-pressure polyurethane coatingGrillPerforated, powder-coated steelPole Sockets2 (35 mm)Handles8 Steel Handles


Flying HardwareSide-pull anchors and/or shoulder eyeboltsSuspension System16 x 3/8 in.-16tpi threaded flypointsAmplification for InstallationComplete power package including DSP in two space rack chassis for permanent installationsInstallation VersionAvailable without handles and pole socketsTransport DolliesDolly cart with 4 locking casters and recesses to accept interlocking cabinet feet for transporting 1 to 3 cabinetsCoversHeavy-duty padded nylon transport covers for 1 or 2 cabinets

Our proactive philosophy causes specifications to be subject to change whenever improvements are made.

*Peak output is calculated using “industry standard” techniques. These calculation methods create theoretical specifications that are inflated over what can actually be achieved. BASSBOSS real world output specifications are provided as “Maximum Sustained Output” ratings, which reflect actual measured, continuous output levels.