LINEAR 5 systems
LINEAR 5 products
The new performance class
The ultimate gigging rig
Outstanding long- and short-throw performance paired with remarkable economic efficiency
Truly powerful performance, plenty of sound pressure—if that’s what you’re looking for in a speaker, then you’ll hit the sonic jackpot with LINEAR 5 series components. These top-notch performers are designed to master the daily rigors of the road with flying colors. The passive and active versions are the most powerful speakers in their class. Professional bands, DJs and rental services certainly appreciate their roadworthiness. Housed in tried-and-true wood enclosures, the rugged LINEAR 5 line is sure to deliver the goods for many tomorrows to come. What’s more, it conserves space in your truck and keeps money in your pocket.
LINEAR 5 puts hardworking bands, mobile DJs and rental companies on the most economical and convenient path to awesome audio. Roaring riffs, big beats, crisply clear speech, background music—the LINEAR 5 sets are configured and fine-tuned to deliver everything the professional expects in a resilient, high-quality PA system. Long throw versions feature HK Audio’s proprietary Multicell Transformer (MCT) technology. Its ability to deliver distortion-free signals at high effective sound pressure levels rivals that of very big horns and line arrays. And seasoned road warriors will certainly to appreciate the multifunctional LINEAR 5 speakers’ simple, intuitive handling.
With its perfectly matched midrange/HF speakers and three fundamentally different subwoofers, LINEAR 5 is tailor-made for events with audiences of 3,000 people and more.
Facts & Features
- The first system to shoehorn long-throw performance into an ultra-compact format
- Low up-front costs, small footprint in truck beds, and speedy setup
- Innovative Multicell Transformer (MCT) technology with the long throw-version
- Acoustically sound head-stacking
- Vertically asymmetrical directivity (+5°/- 25°)
- Nominal power handling (RMS): 1200 W / 138 dB
- Compatible with all LINEAR 5 series components
- For events with up to some 3,000 people
- Matching rigging hardware
- Filter presets for Lab.gruppen IPDs
- Made in Germany

The LINEAR 5-tops: active and passive
LINEAR 5 112 X/XA
Fine-tuned for rendering speech in the key frequency range starting at 100 hertz, the L5 112 X / XA is predestined for use as a mid/ high unit to cover great throw distances. Such applications do not require a tremendous amount of low-end reinforcement, so HK Audio opted for an ingenious space-saving housing that is angled, surprisingly compact, and equipped with a 60° x 40° CD horn for optimum directivity.
Able to handle plenty of gain before feedback, this multifunctional enclosure can even serve as a powerful stage monitor.

LINEAR 5 112 F/FA LINEAR 5 115 F/FA
These are two extraordinarily versatile fullrange models.
Just two L5 112 F / FA units mounted on speaker stands can provide genuine fullrange coverage. The L5 115 F / FA delivers rich, low-ranging bass response to satisfy that will satisfy even the challenging monitoring demands of discerning DJs. Both models feature an asymmetrical, rotatable constant directivity horn (60° – 90° x 55°) that provides wide-ranging coverage in the near field, paired with plenty of long-distance reach. Variable EQ presets let you adapt the frequency response: A flip of a switch is all it takes to transform these fullrange speakers for small to midsized rooms into powerful top units for LINEAR subwoofers.

Features
All models are equipped with two class D amplifiers, one each for the tweeter and woofer. The integrated controller provides three active protective circuits (short circuit, thermal, over/under voltage), a peaklimiter and a subsonic filter to maximize both load handling and component life.
LINEAR 5 LTS/ LTS A
Long Throw. Ultra Compact. Economical.
What does it take to throw the entire frequency spectrum over 30 meters and beyond? Only large line arrays pack a punch powerful enough to deliver that kind of performance. Until now, that is.
LINEAR 5 LTS / LTS A has arrived, and it’s the first speaker to deliver real long throw performance in an ultracompact format. Now you can hit the road with fewer speaker components in tow, saving valuable space on your truck. What’s more, you can set up, stack and fly rigs that much faster and easier.
The new LINEAR 5 LTS / LTS A is not only the easiest way of treating audiences of up to 3,000 to the best sound; it’s also the most economical option out there.

Solo

Horizontal Cluster

Head Stacking

Head Stacking Cluster
Long Throw
Whether it’s 30, 40 or 50 meters – the new LTS / LTS A mid/high unit throws the sonic image as far as it needs to go, sending even silky top-end frequencies all the way to the back row. This is made possible thanks to HK Audio’s groundbreaking Multicell Transformer technology. This ingenious invention drastically reduces high frequency distortion, thereby solving a major problem of legacy horn and waveguide designs: they generate distortion that limits the amount of useful sound pressure.
Equipped with this proprietary technology, the LTS / LTS A is able to deliver 138 dB SPL, an exceptionally high maximum by any standard.
This awesome power, paired with a curved array created by the multiple cells, extends the range to cover the entire sound field with a crystal-clear audio image.
Ultra Compact
The pioneering Multicell Transformer makes setting up compact speaker systems an exercise in convenience. The latest generation LINEAR 5 series model is housed in an ultra-compact 68 x 44 x 46 cm enclosure. Tipping the scales at just 24.9 kg, LTS / LTS A can easily replace speakers twice its size and weight to save truck space and make installation in a rig so much easier. LTS / LTS A’s classic streamlined format is certainly a refreshing change. Talk about intuitive handling: finally, here’s a straightforward design that can be stacked on the ground or on its head, and clustered with remarkable ease and flexibility. All this contributes to making LTS / LTS A easily the most flexible tool in its class.
Economical
Sophisticated features, a remarkably affordable price, a small footprint and fast setup. With the LINEAR 5 LTS / LTS A, your savings are threefold: peoplepower, truck space and time. This gives you far greater leeway for planning the given production’s budget, as well as making the LTS / LTS A the most economical solution in its application range.

The innovative multicell transformer
To date, there have been two ways to construct long range speaker systems. The time-tested approach is to use long throw horns. They have to have very large mouths and deep enclosures to accommodate the horn’s throat, so the housings are huge. Plus, there’s a lot of real estate inside the horn. These surfaces cause resonances and reflections that manifest as distortion, particularly at high frequencies. This distortion puts a very low cap on the maximum achievable sound pressure.
The other option for long throw applications, the line array, has been around for about 20 years. Waveguides shape the wave-front so that the line array is able to render even high frequencies well. The downside is that you have to haul, assemble and align a whole lot of speakers even for small or medium-scale events, which costs you truck space, time and money.

To date, there have been two ways to construct long range speaker systems. The time-tested approach is to use long throw horns.
They have to have very large mouths and deep enclosures to accommodate the horn’s throat, so the housings are huge. Plus, there’s a lot of real estate inside the horn. These surfaces cause resonances and reflections that manifest as distortion, particularly at high frequencies. This distortion puts a very low cap on the maximum achievable sound pressure.
The other option for long throw applications, the line array, has been around for about 20 years. Waveguides shape the wave-front so that the line array is able to render even high frequencies well. The downside is that you have to haul, assemble and align a whole lot of speakers even for small or medium-scale events, which costs you truck space, time and money

HK Audio engineers took up the challenge of reinventing the long throw speaker and came up with a ground-breaking solution: the Multicell Transformer (MCT). This ingenious invention makes the most of horns’ and waveguides’ physical advantages, with none of the drawbacks. The mouths of the nine horn channels form a line array, with sound traveling down channels of different lengths to achieve different delay times. This yields a perfect vertical curve and a very precise +5°/-25° pattern of throw.
With these unique properties, the MCT achieves the performance of comparable horns and waveguides at a fraction of their size. This revolutionary advance in technology is the key to building sensationally small and streamlined speakers.
Here’s a simplified run-down of how it works: the MCT splits the wave-front into nine small wave-fronts. Each of these partial waves is directed through the flaring duct of a horn of different length and mouth size. These horns don’t have acres of real estate that can cause interference, so the only distortion they generate is beyond the range of human hearing. This increases useful sound pressure by up to 10 dB.


SUGGESTED SYSTEM SETUPS: ACTIVE

LTS Front PA – Long Throw Sound Reinforcement
Audience size: max. 1,000
2 x L5 LTS A
2 x Distance pole with hand crank
4 x L SUB 4000 A

L SUB 4000 A Sub Low Extension for additional Low End
Audience size: max. 1,000
2 x L5 LTS A
4 x L SUB 2000 A
2 x L SUB 4000 A

LTS Clustering for broader horizontal dispersion
Audience size: max. 1,500
4 x LTS A
6 x L SUB 4000 A

LTS for broader horizontal dispersion
Audience size: max. 1,500
4 x LTS A
6 x L SUB 4000 A

LTS Headstack Clustering for broader horizontal dispersion and further Long Throw capability
Audience size: max. 3,000
8 x L5 LTS A
12 x L SUB 4000 A
Nearfills are recommended in a setup like this
SUGGESTED SYSTEM SETUPS: PASSIVE
HK Audio has spearheaded the drive to advance the state of the art in active sound reinforcement – that is, speakers with built-in power amps and controllers – for more than 20 years. Such integrated systems are often easier to transport, set up and operate. However, there are many applications, particularly for rental and installed systems, where a central power amp rack paired with passive speakers is the more practical or affordable solution. Our application specialists have developed a concept for unified power racks featuring the latest generation of advanced controller amps made by market leaders Lab.gruppen. These amp racks can be easily configured to drive a variety of HK Audio speaker setups simply by selecting the appropriate filter set. A complete library of filter sets is already archived in the power amps’ memories.
KEY RACK 2.24
Key Rack 2.24 is a light, compact rack that is three rack units in height. It is equipped with the new, groundbreaking IPD 2400 controller amps (2 x 1200W @ 4 Ω) made by the Swedish specialist Lab.gruppen.
With the two IPD 2400s, integrated power distribution, and the LoadLibrary, you get an astonishingly efficient, turnkey power-pack to drive the HK Audio LINEAR 5 LTS system.
A complete library of filter sets is already archived in the power amps’ memories. A unified amp rack for professionals, versatile enough for use with smaller and larger systems, is the key to making configuration, setup and service easier, as well as maximizing the operational lifespan of your gear.
Key Rack 2.24 is easy to handle, ultra efficient and remarkably affordable, with elegant remote control via PC or iPad to boot.


L 5 Simple Monitor Setup
3 x L5 112 X
1 x L SUB 1200
1 x Key Rack 2.24

Passiv L 5 Rock Pack
2 x L5 112 F
2 x L SUB 1200
1 x Key Rack 2.24
One Key Rack 2.24 can drive full stacks with up to 2 x L5 115 F and 4 x L SUB 2000 units.

Passiv L5 Big Venue
2 x L5 115 F (or L5 112 F)
2 x L SUB 2000
1 x Key Rack 2.24
One Key Rack 2.24 can drive full stacks with up to 2 x L5 115 F and 4 x L SUB 2000 units.

LTS Half Stack – Efficient Long Throw Setup
2 x L5 LTS
2 x Distance pole with hand crank
2 x L SUB 4000
1 x Key Rack 2.24

LTS Head Stacking for further Long Throw capability
4 x L5 LTS
6 x L SUB 4000
2 x Key Rack 2.24

LTS Front PA – Long Throw Sound Reinforcement
2 x L5 LTS
2 x Distance pole with hand crank
4 x L SUB 4000
2 x L5 112 X for Near Fill application
2 x Speaker Stands
2 x Key Rack 2.24

LTS Clustering for broader horizontal dispersion
4 x L5 LTS
6 x L SUB 4000
2 x Key Rack 2.24