User manual JBL L26BL (OBS)

[. . . ] The critically acclaimed K2 S5800 uses the advanced components and technologies expressly designed for the K2 Series in the service of your listening pleasure. And by popular demand, the S4800 brings revolutionary K2 sound and styling to small- to medium-sized rooms for superlative fidelity and musical realism. Employing newly developed, cutting-edge technologies, including a next-generation Alnico woofer and a unique dual-compression-driver P R O J E C T K 2 S980 0SE K 2 S580 0 K2 S480 0 SPEC IFICATIONS Do you crave the performance of a full-blooded professional loudspeaker, but refuse to allow "professional" aesthetics to upset your domestic harmony?Music lovers can now savor the magnificent authority of an orchestra in full flight or experience a rock concert recording at realistic levels through a loudspeaker designed for the home environment. JBL K2 ­ The best of both worlds. L26BL (OBS) Description Frequency Response Power Handling K2 S5800 50Hz ­ 40kHz (­6dB) 300 Watts RMS 28Hz (­10dB) 800Hz, 10kHz 95dB 8 Ohms 1245mm x 432mm x 413mm (49" x 17" x 16-1/4") S4800 55Hz ­ 40kHz (­6dB) 300 Watts RMS 55Hz (­6dB) 900Hz, 8kHz 93dB 8 Ohms 1067mm x 501mm x 372mm (42" x 19-3/4" x 14-5/8") (height with spike feet ­ 1086mm/42-3/4") 65kg/143 lb 3-Way Floorstanding Speaker 3-Way Floorstanding Speaker 3-Way Floorstanding Speaker 45Hz ­ 50kHz (­6dB) 400 Watts RMS 35Hz (­10dB) 800Hz, 10kHz 92dB 8 Ohms 1295mm x 508mm x 375mm (51" x 20" x 14-3/4") Bass Extension Crossover Frequencies Sensitivity (2. 83V/1m) Nominal Impedance Dimensions (H x W x D) Weight 90kg/198 lb 84kg/185 lb L26BL (OBS) BG High-gloss-black zebrawood L26BL (OBS) WG High-gloss mahogany K2 S5800 High-gloss cherry S4800 Cherry 7 045Be Compression Driver AluminumAlloy Cover Edge-Wound Voice Coil Phase Plug Stainless-Steel Mounting Bracket 1-Inch (25mm) Pure-Beryllium Diaphragm Gold-Plated Input Terminal 1500AL Low-Frequency Driver Foam Rubber Surround AluminumAlloy Frame Dual, Inverted, Nomex® Spiders Flux-Stabilization Ring Alnico 5DG Magnet Steel- and CopperLaminated Outer-Gap Sleeve Assembly AluminumAlloy Cover Neodymium Magnet Paper-PulpComposite Cone Polepiece 4-Inch (100mm) Voice Coil With Aluminum EdgeWound Wire Motor Pot 435Be Compression Driver Neodymium Magnet AluminumAlloy Cover Phase Plug 3-Inch (75mm) Pure-Beryllium Diaphragm Terminal 5-Way Binding Posts Aluminum Edge-Wound Voice Coil BindingPost Input Terminal P R O J E C T K 2 S980 0SE K 2 S580 0 S480 0 COMPONENTS COME TOGETHER 100 90 80 70 60 50 30 100 1k Hz 10k 20k 50k HF LF UHF In the right hands, a loudspeaker can become so much more than the mere sum of its parts Light yet rigid materials such as titanium, beryllium and aluminum have been carefully selected for the K2 compression drivers for their speed and responsiveness. [. . . ] The L26BL (OBS) employs a 380mm (15") (1500AL) woofer with ribbed Aquaplas-coated pulp cone, Alnico magnet and 100mm (4") edge-wound voice coil. Aquaplas applied to the rear periphery of the cone helps to neodymium magnets for high output, high sensitivity and high durability. The K2 S5800 380mm (15") (1500FE) and S4800 300mm (12") (1200FE) bass drivers are designed for large excursion and power linearity with ferrite magnets and JBL's new SFG magnetic circuit. 9 tem applies DC bias to the capacitor, eliminat- THE MUSIC, REVEALED 1940's NYLON STOCKINGS, FILM NOIR, THE DAWN OF AUDIO. James B. 1950's BLUE SUEDE SHOES, MCCARTHY, THE ELECTRIC GUITAR. As rock `n' Lansing leaves Western Electric (where he led the team that brought sound to the movies) to start JBL. First products: the D130, an innovative highpower, low-frequency transducer, and a highfrequency transducer that's still used by audio professionals more than 50 years later. roll is born, JBL becomes the clear leader in studio and theater sound. And LIFE magazine calls the JBL Hartsfield the "dream speaker" for the amazing new world of hi-fi. 10 1960's VIETNAM, WOODSTOCK, SPACE. JBL introduces 1970's POLYESTER, WATERGATE, SATURDAY NIGHT FEVER. 1980's MIAMI VICE, MASTERS OF THE UNIVERSE, MTV. The Academy 1990's GEN X, DOTCOMS, DVD. TODAY WITH PROJECT ARRAY, JBL introduces the legendary 4320. With a high-frequency compression driver and acoustic lens in a four-way configuration, it becomes the definitive studio monitor of the Space Age. (We're with the band, man. ) By 1976, a Billboard survey ranks JBL studio monitors number one. The vertical SonoGlass constant directivity horn maintains an optimum dispersion pattern of 60 degrees x 30 degrees. Classic JBL bass drivers The Project Array woofers are all based on acclaimed JBL Professional bass drivers. They employ massive ferrite motor assemblies, edge-wound copper voice coils and durable rubber surrounds to drive an essentially inert Aquaplas-coated pulp-cone assembly. Built to play loud and long, they proudly reflect their professional heritage. ultrahigh crossover sections are isolated on a separate board in a different section of the enclosure to minimize crosstalk with the low-frequency crossover. 100 90 80 70 60 50 30 100 1k Hz 10k 20k 50k HF LF UHF 38mm (1-1/2") copper edge-wound voice coils, the 045Ti 25mm (1") pure-titanium compression driver and the 435AL 75mm (3") Aquaplastreated aluminum-dome compression driver. Flexible system building 1400 ARRAY is a three-way floorstanding design featuring the LE14H-3 350mm (14") Aquaplas-treated pulp cone driver with 100mm (4") copper voice coil, the 045Ti 25mm (1") pure- titanium compression driver and the 435AL-1 75mm (3") Aquaplastreated aluminum-dome compression driver. It incorporates a powerful W1500H 380mm (15") bass driver with 100mm (4") copper edgewound voice coil and a dedicated 1000-watt Class D digital power amplifier mounted in a trapezoidal enclosure. 17 ARRAY SPECIFICATI P R O J E C T A R R AY 15 0 0 · 14 0 0 · 10 0 0 · 8 8 0 Description Frequency Response Power Handling Sensitivity (1W @ 1m) Nominal Impedance 1400 Array 3-Way, 350mm (14") Floorstanding Speaker 32Hz ­ 40kHz 300 Watts 89dB 8 Ohms 1000 Array 3-Way, 250mm (10") Floorstanding Speaker 35Hz ­ 40kHz 200 Watts 89dB 8 Ohms 800 Array 3-Way, 200mm (8") Bookshelf Speaker 55Hz ­ 40kHz 200 Watts 88dB 8 Ohms 880 Array 3-Way, Dual 200mm (8") Center Speaker 70Hz ­ 40kHz 200 Watts 90dB 8 Ohms 1500 Array 375mm (15") 1000W Front-Firing Sub 25Hz ­ 400Hz, variable N/A N/A N/A 18 · 80 0 ONS A Message From Greg Timbers, JBL's Chief Systems Engineer I've long been a fan of compression-driver systems. They have a speed and effortlessness unmatched by direct-radiator systems. Current hardware is very low in distortion, has smooth frequency response and can be designed to have very smooth, consistent directivity patterns. However, I've always felt that, as good as the three-dimensional image provided by these systems is, it could be even better. Since many of the best sounding direct-radiator systems have minimal baffle areas, particularly around the mid- and high-frequency drivers, it was reasonable to conclude that minimizing baffle area and diffraction around a horn might improve imaging and frequency response. The horn has been oriented to minimize width, and to position the diffraction slot within the horn in the vertical plane. Next, the top of the LF enclosure has been cut away so the horn is nearly freestanding. [. . . ] The 880 Array (center channel) has been designed to have the same timbral and phase behavior as the tower systems. This is essential in a multichannel setup to ensure proper decoding of the source material, which was most probably mixed using identical speakers at all positions. Five (or seven) identical speakers are the best way to re-create the sound space that the authors of the recording intended. Unfortunately, the size and cost of five front speakers are often problematic. [. . . ]