Related Manuals for JBL SYN 3
Summary of Contents for JBL SYN 3
- Page 1 JBL Consumer Products, Incorporated 240 Crossways Park West Woodbury, NY 11797 8500 Balboa Boulevard Northridge, CA 91329 800-645-7484 A Harman International Company P/N 301227-001...
- Page 2 SYNTHESIS THREE SPEAKERS OWNER’S MANUAL...
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Page 3: Table Of Contents
CONTENTS INTRODUCTION ...2 SPEAKER PLACEMENT ...3 CONNECTING THE SPEAKERS TO THE REST OF YOUR SYSTEM...7 FINE TUNING YOUR AUDIO SYSTEM...8 TROUBLESHOOTING ...16 SPECIFICATIONS ...17... -
Page 4: Introduction
Congratulations on purchasing this JBL Synthesis Three home theater speaker. This product represents the synthesis of everything that JBL has learned about the emo- tional power of audio and video in over fifty years of preeminence in the field. It sets new benchmarks in the use of “high technology”... -
Page 5: Speaker Placement
COMMON VOICING: Synthesis Three uses common voicing across the front three channels. Since identical drivers are used, each speaker has the same tonal qualities, thus as a sound is panned from one side to the other, there will be no change in timbre. MAGNETIC SHIELDING: All front speakers are magnetically shielded, allowing you to place them near video monitors without generating interference or distorting the picture. - Page 6 The speakers have been designed to integrate well with rear projection 35” and 45” tele- vision sets. The subwoofers can be placed on both sides of the television set, with the left and right speakers stacked on top. This arrangement lends itself nicely because it places the center of the horns at approximately the desired height with the screen.
- Page 7 right speakers. The horn in the center channel speaker should be no more than two feet higher or lower than the horns in the left and right speakers. This preserves the “localization integrity” of “sound pans”, in which the sound appears to move from left to center to right.
- Page 8 NOTE: Do not attempt to install any type of mounting bracket that is not supplied with the speakers. Drilling holes in the product or improperly installing mounting brackets may void your JBL warranty and cause a safety hazard. A JBL factory authorized custom installer can suggest and install appropriate...
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Page 9: Connecting The Speakers To The Rest Of Your System
We rec- ommend #14 AWG wire as a minimum size. Your JBL dealer can recommend suit- able cables, or you can buy this type of wire at most hardware stores. -
Page 10: Fine Tuning Your Audio System
are connected identically. Unscrew the binding post, insert the wire into the hole, and retighten. If you are using banana plug type wire connectors, insert them directly into the posts making sure the lug on the negative (-) side of the banana plug is placed into the black binding post. - Page 11 ROOM REFLECTIONS The most troublesome room reflections are usually the early reflections of the LCR speakers off the floor, ceiling and side walls. These reflections reach the listener’s ears delayed with respect to direct sounds and blur the perceived image. They can also degrade dialog intelligibility, through the same mechanisms.
- Page 12 Commercially built diffusers are available but large bookcases and irregularly shaped furniture will also serve the same purpose. They reflect sounds in a highly randomized way which effectively “scatters” the sound in all directions. Place the diffuser where you would otherwise place the absorptive material (using the “mirror trick”), to break up the first early reflections and scatter them randomly throughout the room.
- Page 13 In particular, the surround speakers depend on non-absorptive surfaces for their opera- tion, since they radiate virtually no sound directly at the listeners. The best arrangement of the absorptive and non-absorptive surfaces in the room can be seen in the diagram below. Most of the room surfaces are relatively absorptive, with the notable exception of the rear wall and the highest portions of the other walls, which should be diffusive.
- Page 14 RATTLES Rattles in the room are structural resonances (as opposed to standing waves, which are airborne resonances) which the system may stimulate due to its broad frequency response and wide dynamic range. They are particularly prominent for sounds in the lower frequencies, and can sound like distortion.
- Page 15 Constant background noise also obscures, or masks, low-level signals which are fre- quently important in films. Many scenes use subtle ambient noises to set the mood prior to an important event—without the full perception of the whispered secret or the barely-heard creaking of a door, the impact of the following scene is diminished.
- Page 16 • Seal all windows, doors, vents • Seal and caulk all apertures in the wall (electrical outlets, through-wall plumbing, etc.) Finally, transient noises (traffic on the street, dripping faucets, etc.) distract your atten- tion away from the program material, and remind you that you are in your home theatre/living room rather than a participant in the action of a movie.
- Page 17 often requires significant adjustment of subwoofer placement. Leave yourself some lati- tude with regard to subwoofer placement when planning your system—the final adjust- ment will probably have to be done on something of a trial-and-error basis. STANDING WAVE SOLUTIONS: ABSORPTION In theory, it is possible to damp standing waves with absorptive material.
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Page 18: Troubleshooting
TROUBLESHOOTING Symptom No sound coming from speaker Cinema drivers are not turning on in cinema mode Bass is very weak Poor or smeared imaging Indistinct dialog Uneven surround coverage • Poor speaker placement, Probable Cause • Amplifier not turned on •... -
Page 19: Specifications
SPECIFICATIONS S3M-Cinema Frequency 70Hz-18kHz, (-3dB) Response Power 150 watts Handling Sensitivity 87dB dB/1W Nominal 8 ohms Impedance High Frequency Dome Transducer High 1” Frequency Compression Driver Mid-bass (2)-6-1/2” Transducer Low Frequency N/A Transducer Dimensions, 32” x 10” x H x W x D in 12.25”...