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EDMONTON -- January 6, 2020  – BB Distribution Ltd, a distribution company specializing in best-in-class products for the automotive, marine and consumer electronics markets, is proud to announce an exclusive distribution partnership with both SounDigital and Ground Zero in Canada – a historic first for both brands. 

Products from Ground Zero and SounDigital will be stocked by mid February in BB Distribution’s Western Canadian warehouse and headquarters in Edmonton, Alberta as well as our Eastern Canadian warehouse in Mississauga, Ontario. 

“As a leader in Canadian wholesale distribution, BB aims to establish meaningful connections between retailers, supply chain partners and employees and this is a natural extension of that work,” said Jason Haberman, Sales & Marketing Director. “We are excited to team up with both SounDigital and Ground Zero providing our Canadian partners direct access to more of the world’s best in car audio.”

Ground Zero offers dealers a complete brand solution that can cover any part of their product line up. With products ranging from entry level to high end “SQ” amps, speakers, and processors, SPL subwoofers, Pro Audio style drivers, and OEM drop in and plug and play solutions, Ground Zero has become one of the largest car audio brands in the world. 

“With more than 400 products distributing in 65 countries, we are sure to be a great partner for BB,” said Ground Zero founder Karl Felix Lautner. “Ground Zero is not just another brand in car audio entertainment, every product is engineered in Germany to be the best in sound and value to compete on the highest level with any competitor.”

SounDigital brings together small footprint, big power, versatility, and great sound quality to a single family of amplifiers, making it a go to line for dealers and consumers both. The EVOX line is a great mix of multichannel and monoblock amplifiers that gives sales and installs the flexibility to use our amps in pretty much any situation. 

“BB Distribution is the perfect partner for our company in Canada and we are very confident that we will have the best possible representation from coast to coast.” added SounDigital CEO Diogo Ianaconi. 

In the new year, both SounDigital and Ground Zero will be exhibiting at the KnowledgeFest events in the States. For the first time showing in Canada, you can find both brands exhibiting at the BB VIP Expo in Edmonton and the Mobile Audio Expo in Toronto. 

For more information, please contact: 

The BB Client Services Team This email address is being protected from spambots. You need JavaScript enabled to view it.

Justin Bond, Product & Training Specialist This email address is being protected from spambots. You need JavaScript enabled to view it.

Jason Haberman, Sales & Marketing Director This email address is being protected from spambots. You need JavaScript enabled to view it. 

About BB Distribution BB Distribution Ltd is one of the premiere consumer electronics and accessories suppliers in Canada, offering dealers fully integrated client services, sales, technical support and product training. Established in 1982, the privately held company continues to grow its national reach through strategic partnerships in new market verticals that uphold the BB Corporate vision of best brands and best service. Representing almost forty manufactures, BB Distribution is proud to offer our valuable partners just in time inventories for virtually every 12 volt product solution. Marketing, service and sales initiatives continue to be a fundamental part of the company's growth and planning with Automotive, Marine, Motorsports & Consumer Electronics partnerships. 

For more information on BB Distribution, visit www.bbdistribution.ca

Founded in 1995 by Karl Felix Lautner, Ground Zero is one of the world’s most respected names in car hi-fi, offering a complete range of over 300 car audio products including speakers, subwoofers, amplifiers and further digital audio equipment for enthusiastic customers.  Known as the German brand with American roots,  Ground Zero has earned high praise by independent trade magazines for the impressive quality of its products, all developed by Ground Zero’s in-house engineering department and distributed across 65 countries across the globe. 

For more information on Ground Zero, visit https://www.ground-zero-audio.com/

SounDigital is a leading Brazilian manufacturer of car audio amplifiers. Back in the 90s, the electrical engineering student, Juliano Anflor, decided to develop a car audio amplifier as a college project. What started as a hobby turned into a passion, and some years later, into the business of his life. Always innovating and searching for new technologies, SounDigital has earned its share of the market in a small period of time and has become the apple of the eyes of wellknown and demanding professionals of this segment. The company’s products can be found in over 45 countries and their competitive division, TEAM SOUNDIGITAL, has taken part in more than 20 world championships, holding several prominent high scores and world records. 

For more information on SounDigital, visit https://soundigitalusa.com/ 

DANIA BEACH, Fla. -- The GZ ULTRA T-30 and GZ ULTRA K-165 are two flagship driver units from Ground Zero that combine perfectly to create a separate two-way speaker system without compromises. High frequencies to 26kHz are tackled by the 30mm coated textile tweeter, which also has an ultra-wide bandwidth (down to 1kHz) and offers extremely low distortion. The partnering GZ ULTRA K-165 bass/mid is also a reference-grade design, marrying a lightweight carbon fleece sandwich cone with a powerful and accurate neodymium motor and high-quality aluminum basket. Sound performance is lively and exciting, blending very high precision with great emotional impact – these are the best component speaker units when music is all that matters.

Ground Zero has designed the GZ ULTRA A-2 as the ultimate in high-end, no- compromise automotive audio. A two-channel, dual mono Class AB amplifier for the hi-fi enthusiast demanding the very best in sound reproduction, it’s constructed from high-grade components in as minimalistic way as possible – even potentiometers have been replaced by fixed resistors. Premium features include adjustable bias to perfect its sonic output and optional water cooling is offered to keep its temperature optimal. The GZ ULTRA A-2’s sound is so neutral, open and perfectly balanced that the music always shines through. With plenty of power on tap, this is truly an amplifier that deserves the ‘high-end’ label.

“We are really excited to bring this products to the American market, and very proud of receiving two amazing EISA Awards for them,” said Diogo Iannacone, CEO of HKI USA, official importer of Ground Zero in the USA.

For more information about Ground Zero, please visit GroundZeroUSA.com. For information on becoming a GZ Dealer, please visit HKI-USA.com

DANIA BEACH, FL and Egmating, Germany (02.18.2022) - Ground Zero Car Audio and HKI USA are proud to announce the newest item in the Hydrogen line of subwoofers, that will surely bring some excitement to the truck, powersports, and stealth installs we all love to see.
The new GZHW 10SPL-D2 Flat is going to have a huge effect on the industry when it comes to obtaining amazing output, musicality, and install versatility. With its shallow mounting depth of just over 4”, its power handling of 600 WRMS, and its love of smaller enclosures, this subwoofer is going to allow for installs to be a little more fun to listen to. From vented or sealed truck boxes, spare tire enclosures, and even some OEM sized saddle bags and side by side enclosures, these woofers bring something else to the table that we have truly been waiting for. 
“With the Pre-Orders opening today, I am looking forward to be able to offer our dealers and their clients an item to maximize their bass output without having to sacrifice tons of space.  I have been having to bottle up my excitement for months keeping this a secret and can not wait to see our dealers go to town with these in all types of builds!” said Tommy Spears of HKI USA. 
For more information or to become an authorized HKI USA retailer, contact your local sales representative or email HKI USA at This email address is being protected from spambots. You need JavaScript enabled to view it..

Dania Beach, Fla., September 18, 2019 – Further continuing its presence in the motorsports market, SounDigital USA announces the new Ground Zero GZCK 250XSPL midwoofer. 

The new GZCK 250XSPL is an updated version of the successful GZCK 250SPL. Low frequency performance and output have been optimized through several changes to the motor and suspension.

“Motorsport audio is a very important segment for us,“ said Diogo Ianaconi, CEO of HKI SounDigital USA. “We are working to always develop the best products in the market.”

The CZCK 250XSPL (MSRP $280.00) is currently shipping.

For more information or to become an authorized Ground Zero retailer, contact your local Ground Zero representative or email SounDigital USA at This email address is being protected from spambots. You need JavaScript enabled to view it..  

Dania Beach, Fla. -- September 30, 2019 -- SounDigital USA introduces two new models from Ground Zero, the GZRC 165.2SQ and the GZRC 165.3SQ.

The new Radioactive GZRC 165.2SQ 2-way component and GZRC 165.3SQ 3-way component kits are centered around the mindset of “high fidelity”. An updated 6.5” aluminum cone midbass driver with a resonant free steel basket, a 1" silk dome tweeter for a more precise and smooth response, and an adjustable passive crossover network are utilized to accomplish this. In the case of the 3-way kit, a 3.15” midrange driver with an aluminum cone and neodymium motor is added to enhance system performance.

"We are very excited to expand our high fidelity line up with another amazing option” states Diogo Ianaconi, CEO of HKI SounDigital USA.

The GZRC 165.2SQ (MSRP $380.00) and GZRC 165.3SQ (MSRP $650.00) are both great additions to the Radioactive lineup.

For more information or to become an authorized Ground Zero retailer, contact your local Ground Zero representative or email SounDigital USA at This email address is being protected from spambots. You need JavaScript enabled to view it..">This email address is being protected from spambots. You need JavaScript enabled to view it..

DANIA BEACH, Fla., February 22nd, 2021 - HKI USA, the US importer for Ground Zero car audio products, is proud to be able to say that the new Uranium line of component speakers is here.

Starting with the GZUK 165SQ midbass, this all new 6.5-inch driver has an underhung neo motor with a 2-inch coil paired with a damped aluminum cone allowing this driver to dig deep and maintain a smooth response through its frequency range.  

The new GZUM 80SQ midrange fits in line as a small version of the 6.5-inch midbass, with its matching motor and cone, making for a well rounded midrange, while it’s 3.15-inch diameter and small motor structure helps it fit in various applications.  

The all new GZUT 28SQ tweeter has a tuned open back neo motor that gives us a distortion free response down to its crossover frequency blending perfectly with the GZUK midbass driver in a 2-way application, while the coated silk dome maintains detail and excitement when rounding out a 3-way setup.

“We have been looking forward to this collection of drivers for quite some time. These are some of the most exciting components I’ve experienced in quite some time,” said Jacob Brown of HKI USA.  

This series is available A La Carte to our network of direct retailers. While passive crossover networks, tailored to work with these drivers, will be available shortly, we are also excited to be announcing another option to the mix and more information on that will be coming shortly.

For more information about Ground Zero or to apply to become an authorized dealer, please visit http://www.hki-usa.com or e-mail This email address is being protected from spambots. You need JavaScript enabled to view it..

Dania Beach, Fla., August 1, 2019 - SounDigital USA introduces new models under Ground Zero brand during KnowledgeFest in Dallas, TX. The GZCS 100MB, GZCS 200MBL-LHD and GZCS 200MBR-LHD are the perfect solutions for Mercedes-Benz owners.

The GZCS 100MB is a 4" 2-way speaker system, featuring an amazing midbass with aluminum cone and aluminum cast housing. The tweeter is a 1" silk dome tweeter that guarantees a precise and smooth response.

The GZCS 200MBL-LHD (Driver Side) and GZCS 200MBR-LHD (Passenger Side) are 8" woofers with pressed paper fiber cone, neodymium motor and start playing as low as 40 Hz.

"We're very happy to bring Ground Zero car specific solutions to U.S. consumers," said Diogo Ianaconi, CEO of SounDigital USA. "Customers are looking for plug and play solutions and great ways to improve the sound quality of their vehicles. We believe these are the perfect solution."

The GZCS 100MB (MSRP $550.00), GZCS 200MBL-LHD (MSRP $450.00) and GZCS 200MBR-LHD ($450.00) are a great addition to the Ground Zero line-up.

For more information or to become an authorized Ground Zero retailer, contact your local Ground Zero representative or email SounDigital USA at This email address is being protected from spambots. You need JavaScript enabled to view it..

High-performance, waterproof drivers paired with multicolor LEDs

DAVIE, FLA., April 24, 2019 (MEDIAWIRE) – SounDigital USA, exclusive U.S. distributor of Ground Zero products, announced it is shipping a new series of marine speakers in time for summer fun on the water. The Ground Zero GZMS 65LED wake tower speakers come in element-proof white or black housings with mounting accessories to fit standard tower dimensions. They also feature a multi-color, remote-controlled LED system to liven up music with color. The new speakers expand the Ground Zero marine line and provide a premium, cost-efficient option for boating enthusiasts.

The GZMS 65LED speakers feature a 6.5-inch woofer with an Injection Molded Polypropylene (IMPP) cone and rubber surround. It is joined by a center-mounted 25mm Polyethyleneimine (PEI) tweeter. Power handling for the two-way driver is rated at 60 watts RMS and 120 watts max.

The sealed, iPX5-rated ABS enclosure of the GZMS 65LED stands up to rain and salt water, and the speaker is protected with a matching grille. Beneath the tweeter, a series of LEDs rotate between 12 color options based on commands from an included remote control.

“We’re excited to bring Ground Zero wake tower speakers to U.S. consumers,” said Diogo Ianaconi, CEO of SounDigital USA. “The marine and powersports market growth is creating a strong opportunity for specialist retailers to provide quality audio solutions for boats. Additionally, we are happy to deliver legendary Ground Zero sound to a growing market segment.”

The GZMS 65LED-B (black version) and GZMS 65LED-W (white version) both carry a MSRP of $480.00 per pair. For more information or to become an authorized SounDigital retailer, contact your local SounDigital representative or email SounDigital at This email address is being protected from spambots. You need JavaScript enabled to view it..">This email address is being protected from spambots. You need JavaScript enabled to view it..

Ground Zero USA is excited to introduce our two newest Radioactive models.

August 12, 2020 -- Now shipping is the GZRB 20SPL and the GZRW 8XSPL. 

Recently announced, and now available, the GZRW 8XSPL (MAP $229.99) is the little brother to our wildly successful Hydrogen 8-inch subwoofer. This driver is a high-quality SPL subwoofer that utilizes a reinforced paper cone with a long stroke compound surround, dual 2-ohm 50mm/2” copper voice coils, and is designed to run on 500w RMS. This driver is best suited for vented applications, and we have you covered with that also.  

The GZRB 20SPL  (MAP $379.99) is a custom tailored preloaded vented enclosure with grill specifically for the GZRW 8XSPL (included). 

For more information on how to purchase this product or to become an official dealer please contact us at This email address is being protected from spambots. You need JavaScript enabled to view it. or visit our website www.groundzerousa.com

June 7, 2020 -- Coming off of the great success we had in the digital sound processor market with our GZDSP 4-8X, we are proud to announce that June will see the release of our newest processor, the GZDSP 4-8XII. The original 4-8X took the car and powersports market by storm, and we played off of this making improvements to the heat sink for more efficient cooling when needed, and also the cosmetic styling, helping it blend seamlessly with our selection of amplifiers. We also made device upgrades, changing the performance of the entire device, helping it become a staple in our dealer’s arsenal of OEM interfacing and audio upgrading tools.

Standard features include summing, eq, time delay and crossovers, while an optional wire remote (GZDSP Remote XII) allows master volume, subwoofer level, and preset selection. An optional input device, the GZDSP BT Stick, combines the features of the wired remote, and full DSP control from a smart device app, with bluetooth audio streaming. This DSP is a perfect option for basic OEM integration, audio system upgrading, or using it as an audio source in hidden applications like motorcycles, ATVs, hot rods, classic cars, and more.

Please visit www.GroundZeroUSA.com for more information. 

Updated GZDSP-6-8X PRO offers more hi-res options, system control and enhanced PC tuning.

DAVIE, FLA., Octiber 15, 2018 (MEDIAWIRE)–SounDigital announced that Ground Zero's new digital signal processing unit, the GZDSP 6-8X PRO, is now available to ship to authorized retailers. New for 2019, the GZDSP 6-8X PRO is the successor to the popular GZDSP 6-8X and features a suite of connectivity and integration enhancements to reflect changing vehicle architecture.

"The GZDSP 6-8X is an industry standard," said Diogo Ianaconi, CEO of SounDigital, which is the U.S. distributor for Ground Zero. "Sometimes it's difficult to make a great thing better. But it is necessary from time to time to make sure a product can continue to work seamlessly with other products, whether factory or aftermarket, and the GZDSP 6-8X PRO's new features are the result of ensuring that compatibility."

Like its predecessor, the GZDSP 6-8X PRO features six high- or low-level inputs to interface with factory amplifiers or aftermarket head units, plus an auxiliary input for analog source connection. For high-resolution playback, the GZDSP 6-8X PRO includes a pair of inputs: an optical input in addition to a new-for-2019 coaxial digital input to accommodate signals up to 192kHz. Wireless music streaming via Bluetooth is made possible with the addition of the optional GZDSP BT-BOX.

Eight low-level outputs allow technicians to build any system configuration. Programming and tuning are accomplished with updated software using a PC attached to the unit's new USB port. Each channel is individually configurable with parametric equalization (31 bands for six channels; 11 bands for two channels), time alignment, crossover points and phase shift. Up to 10 configurations can be stored and selected with the optional GZDSP Remote PRO controller.

Other new features include selectable auto turn-on, selection of a balanced or unbalanced input, and a remote output that has been boosted to 500ma.

MSRP for GZDSP 6-8X PRO is $720. For more information or to become an authorized SounDigital retailer, contact your local SounDigital representative or email SounDigital This email address is being protected from spambots. You need JavaScript enabled to view it..

German-engineered audio products company to market product mix focused on North America.

DAVIE, FLA., August 2, 2018 (MEDIAWIRE)–SounDigital USA announced that Ground Zero, a worldwide speaker and amplifier brand distributed by SounDigital in the United States, will make its first independent appearance at KnowledgeFest, August 17-19 at the Dallas Convention Center. The company’s booth will be located next to the SounDigital show floor exhibit at Booth No. 101. The enhanced presence of the Ground Zero brand signals its push to grow its presence among retailers and specialists in the U.S. market.

Founded in 1995, Ground Zero engineers products from its headquarters in Germany. It is known for revolutionary subwoofer designs which set and broke sound records in the 2000s. The company has since expanded into power amplifiers and most recently, digital signal processing.

As Ground Zero’s U. S. distributor, SounDigital has selected an array of products from the company’s 400+ SKUs that best fit the U.S. market. Almost all current SounDigital sales representatives will offer Ground Zero products in their territories. SounDigital will also create a U.S.-specific website for the brand at groundzero-america.com. Retailers and technicians will obtain product support through SounDigital’s Florida headquarters.

“For the last 23 years, Ground Zero has steadily grown its reputation for outstanding sound quality and no-compromise performance,” said Diogo Ianaconi, CEO of SounDigital. “Since becoming the official U.S. distributor in August of last year, we have put together a plan to expand its footprint with a carefully selected mix of products and attractive dealer programs. We’re excited to present these to the industry this month in Dallas.”

In addition to Ground Zero’s booth presence, the brand will host a vendor training Sunday, August 19 in Room C145 during KnowledgeFest. Attendees will review the new product line and learn the processes behind its development. The company will also announce its upcoming events and programs for the 4th quarter. KnowledgeFest attendees can reserve a seat in the workshop athttps://mea-events.as.me/groundzero1.

For more information on the 2018 U.S.-based Ground Zero product line, contact your SounDigital representative or call (786) 600-1056. You can also email SounDigital atThis email address is being protected from spambots. You need JavaScript enabled to view it..

June 10, 2021 -- Ground Zero USA, imported by HKI USA in Dania Beach, FL., is proud to announce a new item to its lineup of pro audio based speakers and drivers. The Competition Pro series is expanding with the new GZCT 20N-Pro compression driver, a reinvention of the wheel when it comes to a “bullet style” tweeter. Ground Zero took the beloved, but sometimes difficult to mount, GZCT 19N-ProX tweeter and changed the waveguide to a more universal style allowing this amazing tweeter to be mounted into more and more applications where our more recognized GZCT 500IV-B and 0500X tweeters are the standard.

By changing the waveguide to a threaded throat style horn mount, this allows the new GZCT 20N-Pro to drop into just about any location that supports a bullet tweeter, but allows the dealer or customer to step up to a more sound quality emphasized compression driver.

“We are constantly striving to bring to market solutions that are needed and asked for by all of our dealer partners," said Jacob Brown of HKI USA. “Being that this tweeter is the best sounding small format compression driver I’ve heard, we needed to find a way to capitalize on this for all of our retailers and their installs.”

For more information regarding Ground Zero and its extensive list of available products, please visit www.groundzerousa.com.

September 1, 2020 -- The German Car&Hifi magazine has published the EISA award winners and phrased as follows*:
 
Digital signal processors have grown in importance as enthusiasts seek to upgrade the performance of a car’s factory-fitted system, and Ground Zero’s affordable but versatile GZDSP 4-8XII is a superb addition to the market. Utilising the processing power of two Analog Devices Sigma DSPs, it features both line-level and speaker-level inputs, and offers 10-band EQ on each of its eight output channels, plus phase, crossover and time delay management. Its Windows-based real-time control program is easy to use, and a wired remote and Bluetooth adapter for wireless audio streaming and app control are optional extras. This DSP is simple to integrate and impressively flexible.
 
 
For more information please visit www.groundzerousa.com to find nearest authorized dealer or contact HKI USA at This email address is being protected from spambots. You need JavaScript enabled to view it. if you own a brick and mortar to become an authorized dealer.
 
DANIA BEACH, FL and Egmating, Germany (02.18.2022) – HKI USA and Ground Zero Car Audio are proud to announce a new item to the popular coaxial competition audio line of products.
The long awaited GZCF 165NEO-PRO (Red Basket Coax) is now available for pre-order and the excitement is already in place. These are not just two pre-existing drivers attached to each other. Ground Zero developed an entirely new 6.5” midrange driver, and incorporated the new fan favorite GZCT 20N-Pro compression driver. Adding in weather resilient materials and engineering tricks, this driver is suited for all applications where high end sound and high quality pro audio output is needed. 
“The best part about working with Ground Zero is that when it comes to a product such as this, we get to cover all of the bases. From a true audio perspective, with Car AND Pro Audio DNA combined, the effort to make an amazing item reflects in all applications that these products get utilized in” says Jacob Brown, the Director of Operation, HKI-USA. 
For more information or to become an authorized HKI USA retailer, contact your local sales representative or email HKI USA at This email address is being protected from spambots. You need JavaScript enabled to view it..

DANIA BEACH, FL and Egmating, Germany (02.18.2022) - HKI USA is excited to announce a new product to excite car audio dealers to the concept of Pro SQ, while maintaining simple installation and without breaking the bank.

The GZIC 165.2SPL is the newest creation from Ground Zero Car Audio in the Iridium line, that bridges the gap between Pro Audio and Entry Level car audio. This kit allows for a pro style car build with components that are a lot more familiar and traditional. Taking advantage of the new GZCT 25M Competition Line 25mm tweeter, and pairing it with an all new Pro based 6.5” mid bass driver designed around the improved Iridium cone, this kit helps dealers and customers obtain a little more than a standard style kit, without stepping over to the need for custom fabrication with larger pro style componentry. 

“This addition to our line up is just another step in helping our car audio retailers be able to offer their clients the complete solution under the Ground Zero brand,” said Jacob Brown of HKI USA. 

For more information or to become an authorized HKI USA retailer, contact your local sales representative or email HKI USA at This email address is being protected from spambots. You need JavaScript enabled to view it..

August 7, 2019 -- Davie, Fla. - SounDigital USA (www.SounDigitalUSA), worldwide producer and innovator of high performance audio amplifiers, is pleased to announce the appointment of Mike Ventura as National Sales Manager for SounDigital and Ground Zero (www.Ground-Zero-Audio.com) for the US and Canadian market.  With over 20 years of experience navigating the world of 12-volt electronics, he spent a portion of that time in retail before moving to the rep side of the business. For the last eight years he was working as a Division Manager for a large manufacturer in the 12-volt category.

“I believe he will be a great asset for us, and will be working closely with our rep community to grow the US market and strengthen our current partnerships,” said Diogo Iancaconi CEO of SounDigital USA.

“This is a very exciting time for SounDigital and Ground Zero,” said Ventura. “SounDigital is recognized as a high quality provider of amps and speakers. They have established their market organically in the US Market and I am excited to be a part of this next phase of growth.”

Always innovating and searching for new technologies, SounDigital has earned its share of the market in a small period of time and has become well-known to demanding professionals of this segment. The brand’s products can be found in over 40 countries around the globe. Innovation is part of SounDigital’s DNA. The continuous search for new technologies, the creation of products with high power and quality, are additive factors for the company’s growth.

SounDigital and Ground Zero will be on display at KnowledgeFest in Dallas. They also will be hosting training. SounDigital on Saturday the 10th at 4:45 and Ground Zero on Sunday the 11th at 3:30.

Mike Ventura can be reached at This email address is being protected from spambots. You need JavaScript enabled to view it..

July 21, 2020 -- What better way to celebrate our 25th year in the audio game than to release a Limited Edition kit, available all across the world, but we did it in a different kind of way. With the launch and success of our new Radioactive Components (GZRC 165.2SQ), and the announcement of our new Uranium series of components, we have decided to combine these two lines into one single box, bringing you the best of both. 

While using the aluminum cone midbass driver from the RadioActive series of SQ components, and pairing it with the newly designed 28mm silk dome Uranium tweeter, we needed to build a passive network that was a step above. Either used in a passive install, or active with a DSP, this kit brings an uncompromised level of quality to an often overlooked price point. 

“We expect to start shipping this amazing limited edition component sets before end of August to the best retailers across USA,” said Diogo Iannaccone.

Please visit www.GroundZeroUSA.com for more information. 

DANIA BEACH, FL. - HKI USA is proud to announce an amazing new partnership with ProLine-X (Vacaville CA) for subwoofer specific enclosures to help deliver a better overall experience to our retailers and their clients.

Proline-X does things very differently when it comes to building “pre-fab” enclosures by taking away the simplicity of mass market products, and focuses on using the highest quality materials, the best construction methods, and proper design and tuning of their enclosures. “Our goal here is to offer dealers a true solution that has the performance and quality necessary to reinforce Ground Zero subwoofers’ ability to play strong, deep, and accurate bass” says Robert Reilly of HKI USA, who spear headed this project with the Proline-X. 

While Proline-X is not new to the enclosure game, this partnership is the first manufacturer recommended enclosure line to be available nationwide, and Ground Zero is extremely proud to be able to point their dealers in the right direction. There will be available enclosures paired to the entry level Iridium lines up through the widely loved Hydrogen line. Starting with a more traditional universal style and fit, who knows where this could lead and what awesome products could be brought to the table in the future.

For more information on the enclosures, and how to become a dealer, please contact Proline-X.com. For more information about the subwoofers in question and all other GZ products, please visit GroundZeroUSA.com. For information on becoming a GZ Dealer, please visit HKI-USA.com

GZCT 500IV-B adds to the brand’s Competition Series line

DAVIE, FLA., March 28, 2019 (MEDIAWIRE) – SounDigital USA, exclusive U.S. distributor of Ground Zero audio products, announced that the Ground Zero GZCT 500IV-B tweeter is now available to authorized retailers in the U.S. and Canada. The new speaker, introduced at the 2019 KnowledgeFest trade show and education conference in Indianapolis earlier this month, is a high-performance compression tweeter from the brand’s Competition Series, designed specifically for motorcycles. Its introduction gives bike audio retailers a versatile, high-frequency driver in a design ideal for custom installations.

The GZCT 500IV-B features a compact diameter for minimal surface area installations. Its screw-on bezel provides an attractive surface-mount solution for drop-in replacement or custom installs, and rust-resistant rear screw terminals connect it to the radio or amplifier. It’s capable of 30 watts RMS and 100 watts maximum power handling with a rated frequency response of 4kHz – 25kHz.

The element-resistant black chassis houses an aluminum dome tweeter and cast baffle, driven by a one-inch, copper-clad aluminum flat-wire voice coil capable of four-ohm impedance loads. A plastic phase plug enables installers to mount the tweeter to fire toward the rider from the front or rear.

“Our response from retailers at KnowledgeFest was phenomenal,” said Diogo Ianaconi, CEO of SounDigital USA. “Traditional bike audio retailers who know the quality of Ground Zero tweeters liked its crisp, clear performance. And several car audio retailers that don’t typically do bike installs are now seeing a new profit center. We think the new tweeter will be a popular addition to Ground Zero’s Competition line.”

The GZCT 500IV-B has an MSRP of $99 each and is sold as a single speaker. For more information or to become an authorized SounDigital retailer, contact your local SounDigital representative or email SounDigital at This email address is being protected from spambots. You need JavaScript enabled to view it..

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