JBL LCT 81C/T Bruksanvisning

JBL högtalare LCT 81C/T

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LCT 81C/T
Low-Prole Lay-In 2' x 2' Ceiling Tile
Loudspeaker with 200 mm (8 in) Driver
Key Features:
► Component:
• High eciency 200 mm (8 in) dual-cone driver.
► Easy lay-in installation into 2' x 2' US-style suspended grid
ceilings. No cutting of ceiling tiles is necessary.
► Perforated metal grille included.
► Combined 70V/100V and low impedance direct operation.
• 20 Watts at 8Ω (low-impedance) direct setting
• 10 Watt multi-tap at 70V/100V with taps at 10W, 5W,
2.5W (and 1.3W for 70V only)
► Very low-prole at just 103 mm (4.1 in) deep, to t into ceilings
that are shallow or that contain obstructions.
► Easy bare-wire connection in protected compartment. Wire
entrance from either top or side via knock-out.
► Very high 96 dB sensitivity turns power from small ampliers
into maximum sound level for listeners.
► Designed for high speech intelligibility.
► 100° coverage pattern (conical).
► UL1480A and UL2043 certications for use in ceiling plenum
spaces.
Applications:
LCT 81C/T is a full-range ceiling speaker designed to lay into a 2
ft x 2 ft US-style suspended grid ceiling, with no cutting of ceiling
tiles required, making for an easy and cost-eective installation with
a minimum of mess. e low prole depth of only 100 mm (4 in)
allows the speaker to t in locations where deeper loudspeakers do
not.
is loudspeaker is designed to provide excellent performance for
paging and light-to-medium music in a wide variety of applications,
including education classrooms, business music systems, retail
stores, music/paging systems, airports, reception/waiting rooms,
lounges, courtrooms, meeting rooms, and more.
e very high sensitivity of 96 dB provides maximum sound level,
even at low tap settings.
LCT 81C/T contains a 200 mm (8 in) dual-cone driver with
a very high 96 dB sensitivity. e driver features a 25 mm (1 in)
diameter voice coil with a Kapton coil-former and high-temperature
wire for better power dissipation and long-term reliability.
e speaker's built-in 10 Watt transformer provides versatility
by allowing use on 100V or 70V distributed loudspeaker lines, as
well as at 8 ohms (low impedance) for driving directly from a low-
impedance power amplier. Adjusting is convenient via a rotary
switch on the side of the rear enclosure.
Two safety seismic attachment tabs are provided for securing to
ceiling deck, plus 4 holes are provided -- one in each corner. e
color of the perforated grille is white.
(Not for metric 600 x 600 metric ceiling systems.)
Specications:
System:
Frequency Range (-10 dB)1: 100 Hz – 16 kHz
Power Capacity (at low-Z)
2: 40 Watts Continuous Program Power
20 Watts Continuous Pink Noise
Nominal Sensitivity3: 96 dB
Nominal Coverage Angle: 100° conical coverage (ave. 1 kHz - 4 kHz)
Rated Maximum SPL: 108 dB @ 1 m (3.3 ft) average, 114 dB peak
(at 8Ω setting)
Nominal Impedance: 8 ohms (in Direct/ru 8Ω setting)
Transformer Taps: 10 W, 5 W, 2.5 W @ 70V or 100V
(plus 1.3 W @ 70V only)
Transducer:
Full-Range Driver: High-eciency 200 mm (8 inch) dual-cone driver
with 25 mm (1 in) diameter voice coil, Kapton
coil former, and high-temperature voice coil wire.
Enclosure:
Input Connection: Bare wire inside protected in touch-proof wiring
compartment.
Materials: Steel rear enclosure, front bae, and perforated
grille
Grille Color: White
Safety Agency: Suitable for use in air handling spaces. Certied
per: UL1480A -- Speakers for Fire Alarm and
Signaling Systems; UL2043 -- Standard for Fire
Test for Heat and Visible Smoke Release for
Discrete Products Installed in Air-Handling
Spaces; NFPA90 & NFPA70; S7232/UL Listed,
Signaling Speaker.
Dimensions: 607 x 607 x 103 mm (23.9 x 23.9 x 4.1 in)
Net Weight: 7.1 kg (15.7 lbs)
Shipping Weight: 8.3kg ea; 16.5 kg per pair-pack
(18.3 lbs ea; 36.4 lbs per pair-pack)
Ceiling Cutout Size: No cutout required. Speaker drops into
ceiling grid (see installation drawing)
Suspension / Safety-Seismic
Attachment Points: Two tabs on back bae, plus 4 holes in corners
1 Half-space (ush mounted in ceiling)
2 Continuous Pink Noise Rating is IEC-shaped pink noise with a 6 dB crest factor for 100 hours continuously.
Continuous Program Power is a conservative expression of the system’s ability to handle normal speech and
music program material, and is dened as 3 dB above the Continuous Pink Noise Rating.
3 Half-space (in ceiling) average 2 kHz to 6 kHz.
JBL continually engages in research related to product improvement. Changes introduced into existing products
without notice are an expression of that philosophy.
Commercial Series
JBL Professional
8500 Balboa Boulevard, P.O. Box 2200
Northridge, California 91329 U.S.A.
www.jblpro.com
SS-LCT81C-T
05/17
c
LCT 81C/T Low-Prole Lay-In 2' x 2' Ceiling Tile Loudspeaker with 200 mm (8 in) Driver
Installation:
Dimensions:
Caution: Installation must be done by qualied persons using safe
rigging standards. Suspended ceiling grids can usually not be relied
upon as sole support for loudspeaker. Diagram shows two support
lines from suspension safety-attachment tabs on back bae of
loudspeaker. Four holes located near corners of frame can be
utilized instead or in addition. Safety installation requirements vary
by region. Consult a qualied installation professional.
2' x 2' Suspended Ceiling Grid
P
BOTTOM VIEW
Perforated Grille
607
[23.9]
607
[23.9]
SIDE VIEW TOP VIEW
103
[4.1]
82
[3.2]
583
[23.0]
565
[22.3]
7.0 [0.276]
dia. (x4) Dimensions in mm [in]
546
[21.5]

Produktspecifikationer

Varumärke: JBL
Kategori: högtalare
Modell: LCT 81C/T

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