JBL K2 S5800 manuale d’uso

OWNER’S GUIDE PROJECT K2 S5800 3-WAY FLOORSTANDING SPEAKER SYSTEM ® ®[...]

3 PREF ACE 4 CHAPTER 1 – LEGACY : THE HISTORICAL DEVELOPMENT OF THE JBL PROJECT LOUDSPEAKERS 7 CHAPTER 2 – THE PROJECT K2 S5800 LOUDSPEAKER: A TRIUMPH IN ACOUSTICS AND TECHNOLOGY 10 CHAPTER 3 – UNP ACKING THE PROJECT K2 S5800 SYSTEM 10 CHAPTER 4 – SELECTING CABLE 11 CHAPTER 5 – AMPLIFIER RECOMMENDA TIONS 12 CHAPTER 6 – PLACEMENT AND SET[...]

PREF ACE Thank you for selecting a Project K2 S5800 loudspeaker system. It represents the sum total of our research and developmental efforts in sound reproduction over the last half century . We have labored to create a loudspeaker system with no acoustical or elec- trical limitations whatsoever . While the Project K2 S5800 loudspeaker is itself a[...]

CHAPTER 1 – LEGACY : THE HISTORICAL DEVELOPMENT OF THE JBL PROJECT LOUDSPEAKERS Of those few who seek perfection in sound reproduction, only a handful have actually achieved it. The price is always high. It is a rare occur- rence indeed when an individual or group is able to triumph over the constraints of economic and tech- nological reality eve[...]

After Project Everest was intro- duced, sound recording and play- back technology underwent a revolution of its own. With the advent of CD, extremely demanding recorded signals had become the rule rather than the exception – the average source material used by the typical audio enthusiast had become superior to the best demonstration material of [...]

In order to re-create the extremely high dynamic range provided by today’ s audio sources, a new low- frequency transducer was used, incorporating a ferrite magnet, 3- inch edge-wound voice coil, and an Aquaplas ™ -coated 12-inch cone made of Kevlar ® composite, a mixture of Kevlar fiber and pulp material that provides increased rigidity . An [...]

CHAPTER 2 – THE PROJECT K2 S5800 LOUDSPEAKER: A TRIUMPH IN ACOUSTICS AND TECHNOLOGY The following sections describe the primary features and compo- nents of the Project K2 S5800 loudspeaker system. The enclosure of the K2 S5800 is specially designed to transfer unwanted mechanical energy away from any acoustically active surfaces, virtually elimi[...]

frequency drivers, it utilizes forced-air cooling. The entire magnetic structure is attached to a die-cast aluminum-alloy frame. This provides accurate, rigid support for the motor and cone mounting points, as well as doubling as a massive heatsink by providing a huge surface area for heat dissipation. The 1200FE has a central cooling duct which ef[...]

045TI PURE-TIT ANIUM DIAPHRAGM/ NEOD YMIUM MAGNET UL TRAHIGH-FREQUENCY COMPRESSION DRIVER See Figure 5. The 045T i utilizes the same princi- ples as the 435Al, in a smaller foot- print so that a frequency response up to 40kHz can be achieved. INTERNAL CROSSOVER NETWORK Each loudspeaker unit has two internal dividing networks, one for the LF transdu[...]

CHAPTER 3 – UNP ACKING THE PROJECT K2 S5800 SY STEM All components of the Project K2 system have been very carefully packed for maximum protection against damage. As with any superior audio product, it is advisable to keep the original packing materials in case it is necessary to transport the Project K2 S5800 system. Because of the bulk and weig[...]

CHAPTER 5 – AMPLIFIER RECOMMENDA TIONS No single type of amplifier is specified for use with the Project K2 S5800 system. The speakers are highly efficient and will operate adequately with an amplifier or receiver of 70–100 watts. However , the transient response and audio definition of a high-end system such as Project K2 S5800 will pick up al[...]

CHAPTER 6 – PLACEMENT AND SETUP CONSIDERA TIONS The Project K2 S5800 loudspeaker system is designed to be less affected by room acoustics than conventional imaging systems. However , it is very sensitive to overall symmetry , and proximity to walls, ceilings and corners. Ideally , any listening room should contain a combination of live sur- faces[...]

CHAPTER 7 – PROJECT K2 S5800 SWITCH OPERA TIONS The K2 S5800 has two switches mounted on the network panel on the rear of the enclosure. The switches are covered by an access plate which is easily removed by unscrewing the two mounting screws. See Figure 8. The Network Mode (Bi-Amp) Switch ™ (center) should be left in the Normal position except[...]

¡ Bias Battery: The bias battery supplies constant DC bias to the crossover capacitors, eliminating crossover distortion at zero electric potential. Replace the test battery supplied with your system with a 9-volt, 006P rectangular battery as soon as possible. Thereafter , although the speaker will function without the battery , JBL recommends tha[...]

15 SHORTING BARS The K2 S5800 is shipped with short- ing bars installed between its low- frequency and high-frequency terminals. Please see Figure 10. To prepare the K2 S5800 for bi-wire or bi-amp operation, these bars must be removed by completely unscrewing each binding post, removing the bars, and replacing the binding posts. Wires can then be c[...]

16 BI-WIRE CONNECTION METHOD The bi-wire connection method requires one amplifier and two sets of speaker wires. By removing the shorting bars, connections may be made to the individual network sections using four conductors, one for each of the four terminals (see Figures 10, 12 and 13). BI-AMP CONNECTION METHOD The optimal method of powering the [...]

CHAPTER 8 – PROJECT K2 S5800 CARE AND MAINTENANCE The Project K2 S5800 loudspeaker system is sprayed in a poly- urethane finish and requires no maintenance other than an occa- sional dusting with a soft, dry , lint- free cotton cloth. The horns may also be wiped with a soft cloth. T reat the surface very carefully to avoid scratching the finish. [...]

CHAPTER 9 – TROUBLESHOOTING AND SERVICE GUIDE Project K2 S5800 loudspeakers are designed to provide years of trouble-free service. If you are experiencing difficul- ties, we suggest you check these possibilities before contacting your Project K2 specialist dealer for assistance. IF THERE IS NO SOUND FROM ANY OF THE SPEAKERS: • Check that the re[...]

19 K2 S5800 SPECIFICA TIONS POWER HANDLING: 300W (RMS)** FREQUENCY RESPONSE: 50Hz – 40kHz (– 6dB) LOW-FREQUENCY EXTENSION: 28Hz (–10dB) SENSITIVITY : 95dB (2.83V/1m) NOMINAL IMPEDANCE: 8 Ohms CROSSOVER FREQUENCY : 800Hz, 10kHz LOW-FREQUENCY DRIVERS: Dual 12-inch (300mm) Kevlar -composite cone woofers (1200Fe) HIGH-FREQUENCY DRIVER: 3-Inch (75[...]

PRO SOUND COMES HOME ™ JBL Consumer Products www .jbl.com © 2003 Harman International Industries, Incorporated Part No. 339519-001 RECYCLABLE A Harman Inter national Company ®[...]