By PSW Staff • September 9, 2019 Line source (column) loudspeakers have been around for well over a half century, but they’ve gained in popularity over the past decade because they offer a solution for applications calling for efficiency combined with even coverage from a very slim, unobtrusive physical profile. The characteristics of line source loudspeakers – wide horizontal coverage, minimal vertical coverage above and below the enclosure and coherent sound in the vocal range – are all attractive features, particularly in highly reverberant environments. Driver spacing determines the highest frequency at which a column of identical drivers acts as a line source, while the length of the column determines the directivity of the lowest frequencies. As with modular line arrays, a short system might efficiently throw the midrange but leave a puddle of low-frequency mud behind the enclosure. Array theory tells us that sources exhibit coupling behavior up to a frequency whose wavelength is half the distance between adjacent acoustic centers. Column loudspeakers with 6.5-inch diameter cones, when tightly spaced, will couple up to about 1,000 Hz. Four-inch cones couple to about 1,600 Hz, and 2-inch cones to 3,300 Hz. Above these frequencies, lobes appear in the polar response; however, restricting the high-frequency response of some of the cones can reduce lobing. This can be achieved with passive filters in the cabinet or with active filters. It’s common for columns to be combined as multiple cabinets to achieve better performance as taller systems for bigger rooms. Longer columns provide pattern control reaching to lower frequencies. A specialized version of the line source column is called “digitally steerable,” with individual amplification, delay and equalization for each driver, allowing the column’s vertical coverage to be tilted down (or up) and focused for short or long throws. Renkus-Heinz continues to focus extensively on this technology, as evidenced by the IC-Live X Series consisting of two combinable, steerable-array modules, the ICL-X and ICL-XL, joined by the ICL-XS and ICL-X-118S matching subwoofers. Of particular note in IC-Live X is the proprietary Acoustic Source Multiplier (ASM) waveguide that allows the high-frequency section to be coaxially mounted in front of the low-frequency section. This arrangement is designed to deliver a consistent and symmetrical array of both HF and LF along the length of the array, offering users the freedom to choose any acoustic center available. Applications requiring additional bandwidth and dynamic range have led to 2-way designs that incorporate separate high-frequency transducers in addition to the column of tightly spaced loudspeaker cones. Some systems have companion LF columns that employ long-excursion small-format woofers to extend pattern control to lower frequencies. Alternately, traditional subwoofers can supplement a column’s LF response. In addition, some models are expressly designed for portable applications, usually paired with compact subwoofers. Lately, we’ve seen more columns packaged with dedicated subs that house amplification and DSP as well as providing a base for mounting into one cohesive unit. Enjoy this Real World Gear look at the latest line source loudspeaker models. Renkus-Heinz ICLive X Series renkus-heinz.com The ICLive X Series from Renkus-Heinz represents an evolution of medium format digitally steerable line array systems, the culmination of more than 15 years of research and development to provide an integrated system that can truly meet the needs of almost any live sound environment. At the heart of the ICLive X are eight channels of proprietary True Digital class D amplification, two high-sensitivity 8-inch low-frequency transducers, and six discrete 1-inch compression drivers. The compression drivers are loaded onto Renkus-Heinz’s new Acoustic Source Multiplier (ASM) waveguide, which increases the granularity of the high-frequency section, resulting in significantly improved steering control and greatly reduced lobing. Rugged yet nearly invisible array hardware supports up to 12 cabinets per array with a high safety factor. ICLive X has been designed from the ground up to be the most scalable sound system ever created. Whether used in multi-cabinet arrays or as single loudspeakers, ICLive X maintains full steering control over the vertical dispersion, delivering precise coverage for any venue. In addition to this inherent scalability, a wide range of accessories help address the logistical concerns of storing, transporting, and deploying ICLive X systems, reducing overall cost of ownership over time. The narrow profile and straight-hang design minimize sight-line intrusions and reduce architectural aesthetic impact. ICLive X has performance capabilities on par with the best competitive mid-sized line arrays with its compact form factor, simple hardware, comprehensive accessory packages, and inherent scalability. TECHNOLOGY FOCUS: ICLive X systems are just as well suited for fixed installation as they are for production applications. Optional recessed Phoenix Connector style input plates allow them to be wall mounted using dedicated Hinge-Kits. OF NOTE: Two companion loudspeakers, the ICLive XL and the ICLive LX, let integrators achieve increased low-frequency directivity at lower overall system cost. KEY SPECS: ICL-XL Type: Digitally steerable Drivers, LF: 4 x 8-in cone drivers Drivers, HF: 4 x 19-mm high-frequency drivers (mounted coaxially) Frequency Range: 80 Hz – 18 kHz Dispersion: 120 degrees horizontal, vertical adjustable (steerable down to 750 Hz) Power: Self-powered (8 x class D amplifier channels, each with DSP) Weight: 70 pounds Size (h x w x d): 38.5 x 10.5 x 13.4 in Mounting: M10 UMH points; M10 nutplate for pole adapter: R-HANG array hardware. W-WALL-ICX wall-mount bracket Also: ICL-X, ICL-XS Yamaha Commercial Audio VXL1-16 yamahaproaudio.com Type: Column array Components, Full-Range: 16 x 1.5-in drivers Frequency Range: 73 Hz – 20 kHz Dispersion: 170 degrees horizontal, 30/20 degrees vertical (adjustable) Power: 80 watts at 12 ohms Weight: 8.8 pounds Size (h x w x d): 33.3 x 2.1 x 4.1 in Mounting: Several brackets available, including 2-axis adjustment Also: VXL1-8, VXL1-24, VXS1ML, VXS3S d&b audiotechnik 24C dbaudio.com Type: Column (2-way) Drivers, LF: 6 x 4-in cone drivers Drivers, HF: 6 x 1.1-in dome tweeters mounted in vertical horn array Frequency Range: 110 Hz – 17 kHz Dispersion: 90 x 20 degrees; vertical aiming of LF/MF beam: -5 degrees; vertical adjustment of HF section: 0 to -14 degrees Power: d&b D Series amplification Weight: 19.8 pounds Size (h x w x d): 39.4 x 4.9 x 4.9 in Mounting: Adjustable wall-mount brackets Also: 16C and 24C-E RCF NXL 24-A rcf-usa.com Type: 2-way active column Components, LF: 4 x 6-in woofers Components, HF: 1 x 2.5-in compression driver on custom waveguide Frequency Range: 65 Hz – 20 Hz Dispersion: 100 degrees horizontal, 30 degrees vertical Power: Self-powered (class D amplification), DSP Weight: 58.8 pounds Size (h x w x d): 41.5 x 7.9 x 10.7 in Mounting: Pole-mount, flypoints,stackable Also: NXL 44-A, NXL 32-A K-array Kayman-KY102 k-arrayamerica.com Type: Variable beam column Drivers, Full Range: 8 x 4-inch (1.5-inch voice coil) cone drivers Frequency Range: 110 Hz – 20 kHz Dispersion: 90 degrees horizontal, 7 – 30 degrees vertical (selectable) Power: 1,800 watts (maximum), 8-ohm/32-ohm impedance (selectable) Weight: 12.8 pounds Size (h x w x d): 39.4 x 4.5 x 5.3 inches Mounting: Floor stand, flybar, clamp, wall bracket, adapters for stage monitoring Also: KMT18, KMT21, KMT218 (all subs) QSC AcousticDesign AD-S162T qsc.com Type: Column surface-mount Drivers, Full Range: 16 x 2.5-in drivers Frequency Range: 200 Hz – 17 kHz Dispersion: 150 degrees horizontal, 30 or 15 degrees variable vertical Power: 240 watts at 8 ohms, also includes low-saturation 70/100-volt transformers Weight: 26 pounds Size (h x w x d): 45.8 x 5.2 x 5 in Mounting: Wall pan/tilt bracket Also: AD-S802T Coda Audio CoRAY4 codaaudio.com Type: Line source/column Drivers, LF: 4 x 5-in cone drivers Drivers, HF: 4 x 4-in planar wave drivers Frequency Range: 80 Hz – 20 kHz Dispersion: Symmetrical 120 or 60 degrees, or asymmetrical 90 (60 + 30 degrees) horizontal, vertical is 12 degrees (1 degree up, 11 degrees down) Power: Coda LINUS Series amplification recommended Weight: 34.6 pounds Size: 29.8 x 6 x 8.4 in Mounting: CMS (Coda Mobile Suspension), M6 threaded points for use with optional U-bracket Companion: CoRAY4L LF extension (4 x 5-in) dBTechnologies INGENIA dbtechnologies.com americanmusicandsound.com Model: IG4T Type: 2-way active line source Drivers, LF: 4 x 6.5-in cone drivers Drivers, HF: 1 x 1.4-in compression driver Frequency Range: 88 Hz – 19.2 kHz Dispersion: 110 degrees horizontal, 90 degrees vertical (asymmetric +20/-70 degrees) Power: Self-powered (class D) 900/1,800 watts (RMS/ peak), DSP and 48 kHz converters Weight: 40 pounds Size (h x w x d): 37.6 x 7.7 x 10.7 in Mounting: Groundstack, wall-mount, flyware adapters Also: IG3T, IG2T and IG1T; Sub 15H & Sub 18H Martin Audio O-Line martin-audio.com Type: 2-way micro-line array (deployed in multiples of 4 modules) Drivers, LF: 2 x 3.5-in cone drivers (1 module) Drivers, HF: 5 x .55-in dome tweeters (1 module) Frequency Range: 85 Hz – 20 kHz Dispersion: 100 degrees horizontal, 5 degrees vertical (1 module) Power: 50/200 watts (AES/peak); recommended 100-200 watts into 16 ohms (1 module) Weight: 7.9 pounds (1 module) Size (h x w x d): 4.5 x 9.7 x 7.8 in (1 module; 4 modules: 18-in height) Mounting: Captive inter-connecting bracket assembly (0- to 5-degree angles); 6 x M8 flypoints; optional brackets Bose Professional Panaray MA12EX pro.bose.com Type: Column (2-way) Drivers: 12 x 2.25-in cones Frequency Range: 75 Hz – 13 kHz Dispersion: 160 degrees horizontal, 20 degrees vertical Power: 150/600 watts power handling (longterm/peak) Weight: 21 pounds Size (h x w x d): 38.8 x 4.1 x 5.5 in Mounting: 6 x M6 threaded inserts Companion: MB4, MB12, and MB24 (subs) Also: Panaray MA12 mid/high column Alcons Audio QR24 alconsaudio.com Type: Ribbon column Drivers, LF: 4 x 6.5-inch cone drivers Drivers, HF: 2 x 12-inch ribbons Frequency Range: 74 Hz – 20 kHz Dispersion: Choice of 80 or 110 degrees horizontal, vertical is array length dependant Power: Alcons Sentinel3 controller amplifier recommended Weight: 48 pounds Size (h x w x d): 26 x 9.8 x 13.3 inches Mounting: Fork/swivel bracket, standmount and flying hardware Companion: QM24 LMF extension, QB363 LF extension Turbosound iNSPIRE iP2000 turbosound.com Type: Modular column (includes subwoofer) Drivers, LF: 1 x 12-in cone driver in sub (supplied with unit) Drivers, MF: 16 x 2.75-in cone drivers Driver, HF: Horn-loaded super tweeter Frequency Range: 45 Hz – 20 kHz Dispersion: 120 degrees horizontal, adjustable vertical Power: Self-powered, class D (via sub), 1,000 watts (maximum), onboard DSP and digital mixer Weight: 67.7 pounds Size (h x w x d): 81.2 x 16.5 x 19.7 in Mounting: Column attaches to sub Also: iP1000 Tannoy QFlex 48 tannoy.com Type: Digitally steerable Drivers, LF: 16 x 4-in cones & 16 x 3-in cones Drivers, HF: 16 x 1-in titanium domes Frequency Range: 110 Hz – 20 kHz Dispersion: 120 horizontal, +/- 70 degrees vertical Power: Self-powered Class D w/Sharc DSP Weight: 113.5 pounds Size (h x w x d): 116.8 x 6.7 x 5.9 in Mounting: Hinged brackets Also: QFlex 8, 24, 32, 40 and 64 JBL Professional CBT 1000 jblpro.com Type: Coaxial column (proprietary Constant Beamwidth Technology) Drivers, LF: 6 x 6.5-in cone drivers Drivers, HF: 24 x 1-in tweeters Frequency Range: 45 Hz – 20 kHz Dispersion: Variable horizontal (100, 130 and 160 degrees), adjustable vertical (4 “pattern up” and 4 “pattern down” angles) Power: 1,500 watts (6,000 peak) Weight: 54 pounds Size (h x w x d): 40.2 x 9.9 x 13.6 in Mounting: Pan/tilt bracket, 14 threaded points on back panel, 4 threaded points (each) on top and bottom Companion: CBT 1000E extension (12 x 6.5-in, 24 x 1-in) Also: CBT 50LA-1, CBT 70J-1, CBT 100LA-1, CBT 200LA-1 Meyer Sound Cal 64 meyersound.com Type: Digitally steerable Drivers, LF: 16 x 4-in cones Drivers, HF: 48 x 20 mm tweeters Frequency Range: 100 Hz – 16 kHz Dispersion: 120 degrees horizontal, vertical variable from 5 to 30 degrees Power: Self-powered, 64 amplifier channels (1 channel per driver) Weight: 124 pounds (with mounting hardware) Size (h x w x d): 87.7 x 7.7 x 9.9 in Mounting: Adjustable wall-mount brackets (included) Also: CAL 32, CAL 96 FBT VERTUS CLA 604A fbtusa.com Type: 2-way line source Components, LF: 6 x 4-in cone drivers Components, HF: 4 x 1-in dome tweeters on a waveguide Frequency Range: 130 Hz – 20 kHz Dispersion: 100 degrees horizontal, 20 degrees vertical Power: Self-powered (class D) 400/100 watts RMS (LF/HF), DSP with 4 presets Weight: 19.8 pounds Size (h x w x d): 33.1 x 5.1 x 5.1 in Mounting: Rapid latching system to combine units Companion: CLA 208SA (sub) Ramsdell Pro Audio LTA 8-6 ramsdellproaudio.com Type: Column array Drivers, LF: 8 x 6.5-in cones Drivers, HF: 1 x 1.4-in compression driver Frequency Range: 70 Hz – 17.5 kHz Dispersion: 120 degrees horizontal, 40 degrees vertical Power: External amplification (1,000 watts RMS, 2,000 watts program) Weight: 95 pounds Size (h x w x d): 60 x 12 x 11 inches Mounting: Optional flying hardware, stacking feet Also: LTA Compact 12, 8 and 6; LTA 10-4 Community Professional ENTASYS-FR communitypro.com Type: Column (3-way) Drivers, LF: 6 x 3.5-in cone drivers Drivers, MF: 18 x 2.35-in drivers Drivers, HF: 42 x 1-in (planar-coupled Compact Ribbon Emulators) Frequency Range: 200 Hz – 20 kHz Dispersion: 120 degrees horizontal, 12 degrees vertical Power: 600/1,500 watts (RMS/ program) Weight: 40 pounds Size (h x w x d): 44.5 x 5.5 x 7.4 in Mounting: Integrated T-Bar mounting bracket; optional pan-tilt bracket, fly kit Companion: ENTASYS-FR LF column, VLF Series Also: ENTASYS 200 Innovox SLA-Micro innovoxaudio.com Type: Frequency-shaded column (2-way) Drivers, LF/MF: 8 x 2-in cone drivers Drivers, HF: 4 x 20-mm in array configuration Frequency Range: 200 Hz – 20 kHz Dispersion: 120 degrees horizontal, 25 degrees vertical Power: 150 watts long term (AES-2) Weight: 9.3 pounds Size (h x w x d): 31.5 x 2.7 x 2.1 in Mounting: Six 1/4-20 threaded points on back and endcaps (slotted yoke bracket included) Also: SLA-4.1 Verity Audio AC12.3P verityaudio.fr Type: Arrayable/steerable column (2-way) Drivers: 12 x 3-in fullrange cone drivers Frequency Range: 90 Hz – 13 kHz Dispersion: 120 degrees horizontal, configurable vertical Power: 4 x 190-watt class D amplifier onboard Weight: 50.7 pounds Size (h x w x d): 40.2 x 5.9 x 12.2 in Mounting: Suspension and coupling brackets available Companion Sub: SUB136TP Tagged with: Live Sound International Real World Gear RWG · all topics Subscribe to Live Sound International Subscribe to Live Sound International magazine. 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