Welcome and Thank You .................................................... 1 Product Description ........................................................... 2 The lnvisiBa/1™ Mounting System .............................. 3-4 Connections, Polarity, etc ............................................ 5-6 Sound Indoors ................................................................. 7-8 Sound Outdoors ............................................................ S-10 Painting the Speakers .......................
PRODUCT DESCRIPTION Control® 23, Control® 25, Control® 28 Control® 23, Control® 25, Control® 28 Control® 23, Control® 25, Control®28 Control® 23, Control®25, Control® 28 These lull range models of the Control' Series lor contractors are designed lor a wide variety of applications. be it outdoors. indoors. pa1nled to match decor. stacked together. or arrayed side-by-side.
: I j_ l t ~ _... l -T _L +• I MOUNT TO WALL • POP PLUG OPTIONAL~ SAFETY CABLE • LOOSEN CLAMP - · REMOVE LOGO BADGE • POSITION SPKR, TIGHTEN CLAMP. REPLACE LOGO BADGE . ..,....... • ATTACH SAFETY CORD/MOUNT SPKR -+-~ --- tl r-- ·-. I T-r+ . ,. - + 8, .......-!--- !· I I t. ' ! --~-. __ _____...... 1 I ____ I --i- t --- j ! ----~-+---·L..
. -.. ---r----t----·r I t -- - ·t---- INSTALLATION Installing with the /nvisiBa/1 TM Mounting System · The lnvisiBalf" is a unique method of mounting a loudspeaker. Patents are pending worldwide on this design. The lnvisiBalf" is designed to be unobtrusive, offer theft deterrence, and simplify the installers job. NOTE: Your Installation of this Commercial Sound Solution must be done in conformity with local building codes.
CONNECTIONS 0 Input -Simply connect the amplifier's "+" and "-"outputs directly to the red(+) and black(-) input jacks on the back of the enclosure (see diag. 1). -~- --~ -- . ~ . .. ............ .. + ·- . -+ an each - Since the loudspeakers have a rated impedance of an each, more than one speaker may usually be wired to one amplifier channel (see ·· diag. 2). (See "amplifier impedance load" below.) t' + " t. + •· . ...
INPUT 0 LEFT RIGHT ·f--1 +- 611 EACH CHANNEL r1 -t 8!1/8!1 an an j an 24fl Series/Parallel - It is possible to utilize various series/parallel'hook-up' topologies to increase the number of loudspeaker$----~-driven on an amplifier. See diag. 4 for one example of a series/parallel hook-up topology. . _J_ Note: Mis-matching the speaker impedance such that it is below the minimum impedance rating of an amplifier channel can damage the amplifier and degrade performance.
-!-. I •Incident/Reflected/Absorbed • JBL Control®Contractor series speakers -.l-- are designed as fixed installation loudspeaker systems for use in a variety of environments. Performance may nevertheless vary from room to room because of differences in the acoustical setting. Since an enclosed room presents acoustical boundaries (walls, floors & ceilings), sound indoors exhibits quite complex behavior.
HORIZONTAL • High Frequency Coverage - High frequencies go where you point them. Simply aim the center axis of the speaker into the plane slightly above the listening area. The goo x 90° horns of the Control®Contractor Series disperse the high notes by 45° off axis in every direction. For large or unusually shaped rooms, divide the area into zones and let the horn patterns dictate the spacing between the speakers (see diag. 5). VERTICAL i"-- ·--r-- . ~~-r-- ~ I __ _.L.
• Wind - Wind gives the illusion that a sound is coming from a different direction than it really is. This creates a resultant propagation vector (see diag. 1). When sound propagates with the wind it tends to refract downward, and against the wind refract upwards (see diag. 2), (*refraction is the term used to describe the bending of sound). CROSS WIND CROSS WIND I lj PROPAGATiqN VECTOR ~ i :•-. 1 :~ ~ l, :: ~ I ·: ..... . ',J.
It is important to understand that just as the propagation of sound outdoors is effected by its surroundings so is the propagation of sound indoors. Some of these environmental factors exist in both cases, such as reflective surfaces and absorbant materials, but there are a few unique effects that may need to be considered. The factors described on this page can cause the behavior of an outdoor installation to deviate from the Inverse Square Law.
±~RODUCT CARE MAINTENANCE I -~ Your Control Contractor system has been designed and manufactured for durability and reliable service. As with any fine product, proper maintenance and care will extend the life of your system. .i You can expect your system components to perform indefinitely if you use them within their stated limits for power handling, and see that they are not abused. + Always protect the loudspeakers from over-excursion caused by strong subsonic signals (signals below 30Hz).
If none of the suggestions below solve your problem, contact your nearest JBL service center or JBL distributor. Problem 1. No Output. Possible Cause(s) Action • Speaker Cable(s) • Replace the cable(s) connecting the loudspeaker system and amplifier. _l __ ! i -r-- • Amplifier • Make sure the amplifier channel is being fed an input signal (preferably via a "signal input" indicator on the amp). l --1"- -- 1 • Check that the amplifier channel's volume control is turned up.
SPEAKER SPECIFIC AT Frequency Range: Power Capacity: CONTROL®23 The most compact olthe Control Contractor Series speakers. the Control23 is ideal lor limited SensitMty: I 0 N 225Hz -201Hz (:<::3d8) 50 Watts Coolinoous Program 87dB1W, 1m Nominal Impedance S!l Crossover Frequency: 3.5kHz Enclosure Material: HIPS (nigh impact polystyrene) Termination: Spring dips (adapted to aooept dual banana plugs) Dimensions (HxWxD): 188 x 138 x 108mm (7.5 X 5.5 X 4.3ifl) Net Wegrt (eacll): 1.
Control 28 ® High Output Indoor/Outdoor Background/Foreground Speaker Professional Series Key Features: 䉴 Components: 8” Polypropylene coated woofer, 1” Titanium coated horn loaded tweeter.
䉴 Control 28 High Output Indoor/Outdoor Background/Foreground Speaker ® Frequency Response in half-space (2, solid line) and full-space (4, dotted line), and Input Impedance Beamwidth Directivity Index, Q Horizontal Off Axis Frequency Response Vertical Off Axis Frequency Response (up) Vertical Off Axis Frequency Response (down)
Horizontal 1/3 Octave Polars Architectural Specifications: The loudspeaker shall consist of a 200 mm (8 in) low frequency transducer, 25 mm (1 in) high frequency transducer, and frequency dividing network installed in a ported enclosure. The low frequency voice coil shall be 32 mm (1-1/4 in) in diameter. Performance specifications of a typical production unit shall be as follows: Measured sensitivity (SPL at 1 m [3.3 ft] with 2.83V input, averaged from 500 Hz to 1.5 kHz) shall be at least 92 dB-SPL.
䉴 Control 28 High Output Indoor/Outdoor Background/Foreground Speaker ® Vertical 1/3 Octave Polars JBL Professional 8500 Balboa Boulevard, P.O. Box 2200 Northridge, California 91329 U.S.A.