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The VT4888 is a rugged, lightweight
enclosure housing two 12" woofers, four
5.5" midrange radiators, and two high frequency
compression drivers. Advanced
components provide a high power-toweight
Enclosure features foam-backed low frequency
grilles, dense protective foam
inserts for midrange apertures, and fine
steel mesh grille to protect high-frequency
apertures. Speaker cones are treated with
weather-resistant compounds. Rigging tubes
made of hard-black anodized 6061-T6
Aluminum. Hinge bars made from premium-
grade chromoly alloy steel, with epoxy
powder coating over zinc-plated surfaces.
Cadmium-plated hinge pins and stainless
steel quick-release pin lanyards to resist
corrosion and weather damage.
VERTEC arrays are rigid for maximum support
strength, yet flexible in design and
application. The VT4888's suspension hardware
relies on quick-release pins and endmounted
metal tubes to couple adjacent
VT4888's together. Enclosure ships with
integral front and rear hinge bar set.
Protective grille cover/wheel board and soft
cover to ensure handy transport for rough
road conditions, purchased separately as
James Bullough Lansing was born James Martini, 14 January 1902, in Macoupin County, Millwood Township, Illinois. His parents were Henry Martini, born in St. Louis, Missouri, and Grace Erbs Martini, born in Central City, Illinois. The elder Martini was a coal mining engineer, and his work required that the family moved about quite a bit during Lansing's early years. Lansing was the ninth of fourteen children, one of whom died in infancy. For a short time, Lansing lived with the Bullough family in Litchfield, Illinois. He later took their name when he changed his from Martini to Lansing. Not much is known about Lansing's early days, and we are indebted to Bill Martin, one of three surviving brothers, for providing most of the information presented here. Lansing graduated the eighth grade at the Lawrence School in Springfield, Illinois. He also attended the Springfield, Illinois, High School. Later, he took courses in a small business college in Springfield. As a young lad he was very interested in all things electrical and mechanical. At about the age of 10, he built a Leyden Jar which he used to play pranks on his playmates. He also constructed crystal sets, and at one time, probably about the age of 12 or so, built a small radio transmitter from scratch. The signals from this set were apparently strong enough to reach the Great Lakes Naval Station in Illinois; naval personnel determined the source of these signals and later supervised the timely dismantling of the young Lansing's radio transmitter. For a while Lansing worked as an automotive mechanic, specializing in fine engine repair work. He attended an automotive school for mechanics in Detroit through the courtesy of the dealer he worked for in Springfield. Lansing's mother died 1 November 1924 at the age of 56, and at that time Lansing left home. As best we can determine, he went directly to Salt Lake City. Mrs. Lansing, the former Glenna Peterson of Salt Lake City, tells of meeting Lansing in 1925 in that city. At the time he was working for a radio station as an engineer. In addition, he worked for the Baldwin loudspeaker company in Salt Lake City for a time. He also met his future business partner, Ken Decker, in Salt Lake City.
Speakers are generally output devices used by computer systems, and these usually have speaker accessories such as speaker hardware, cables, mounts, stands, etc. All speakers‚?? function amplify sound or audio output so it can be heard by other listeners easier. There are speakers that are built to work particularly with computers while there are those that can be linked to any kind of sound system device. The speakers function as transducers that transform electromagnetic waves into sound waves that can be heard by listeners. They receive audio input from source devices like the computer and with the use of speaker accessories the sound is amplified. Analog sound waves are converted into digital sound waves and are produced from digital speakers. The speaker cables serve as connectors between the input devices and the speaker. Computers and other audio devices will need compatible cables to be able to connect with the speakers and produce amplified sound. The speaker mount are speaker accessories that act as support. They are needed to properly place and hold speakers so they can function properly. There are wall mounts and brackets for the ceiling. Different mounts are needed for different sizes and location for placement. The speaker stand is commonly used in surround systems and these are speaker accessories that help position the speaker devices efficiently. These are usually adjustable. The speaker rigging comprises the support system of speakers. Normally, if there is not rigging provided, the speakers are simply stacked on top of the other on stage.
VT4888 Package - Complete "plug and play" system including (12) JBL 4888 speakers, fly-bars and (2) amp racks.
VT4888 - Turn Key VT4888 System in great condition.
Vertec 4888 Line Array Sound System - JBL Turn-key Vertec Rig used in corporate shows. Self powered sound system.
VT4888 - JBL VT4888 system with (16) box custom system with fly hardware, 3 amp racks and cables.
VT4888 - VT4888 in great condition.
VT4888 - Line Array Loudspeaker w/cover & dolly
VT4888 Package - Complete VT 4888 Line Array system package. In excellent condition with very light use in corporate ...
VT4888DP - Complete package with factory warranty remaining!
VT4888 - These speakers are in mint condition. 7 day warranty.
VT4888 - VT4888 in mint condition.
VT4888 - Used on a few tours. Comes with a 15 day warranty.
VT4888 Array Frame - Used on various rentals.
VT4888 Package - Package of (4) VT4888 with dollies and covers. Mostly corporate use and a few tours.
VT4888 - VT4888 Turnkey system in great condition.
VT4888 Package - VT4888 package. Very light use.
VT4888 - VT4888 in great condition.
VT4888 Package - Package of (24) VT4888(s). Used on various rentals. Comes with a 15 day warranty.
VT4888 - Mostly used on corporate events.
VT4888 Package - Complete 16 Box JBL VT 4888 System with 2-Crown I Tech 4000 and 6000 Amp Racks, Short Frame Array Ba...
VT4888 - Complete turnkey Vertec system.
VT4888 - Mint condition. From 2006. In excellent condition.
VT4888 - VT4888 System in great condition.
VT4888 Package - VT4888 Package with amps and covers