JBL AC28/26 Manual

JBL Højttaler AC28/26

Læs nedenfor 📖 manual på dansk for JBL AC28/26 (4 sider) i kategorien Højttaler. Denne guide var nyttig for 12 personer og blev bedømt med 4.5 stjerner i gennemsnit af 2 brugere

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Side 1/4
Compact 2-way Loudspeaker
System with 2 - 8" LF
Key Features:
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Compact enclosure
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Dual 205 mm (8 in) LF transducers
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120° x 60° Progressive Transition™ Field
Rotatable Waveguide with a 25 mm (1 in) exit
compression driver
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Dual Neutrik NL4 connectors plus screw
terminals
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Multiple Attachment Points for Ultimate
Flexibility
Applications:
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Performing Arts Facilities
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Houses of Worship
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Sports Facilities
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Multi Media Spaces
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Retail Spaces
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Presentation Suites
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Educational Facilities
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Portable Audio-Visual Systems
The AC28/26 is a compact full-range
loudspeaker system designed to provide
maximum bandwidth and SPL in a single
system package and yet be visually
unobtrusive. The enclosure design allows for
installation very close to walls and ceilings
making it an ideal choice for under balcony,
column, or wall mounting. The high frequency
device is a 1" exit compression driver
integrated into a newly designed 120° x 60°
rotatable PT™ (Progressive Transition)
waveguide providing even coverage
throughout the intended listening area. The
combination exhibits smooth power response
resulting in extremely natural voicing. The
AC28/26 utilizes dual 8" Symmetrical Field
Geometry (SFG™) LF Transducers each with a
copper-clad aluminum edge wound 2.5" voice
coil and a copper-clad pole piece that
improves performance by reducing voice coil
inductance and distortion. Filtered Array
Technology (FAT™) is utilized to
independently control the dual woofers for
magnitude and phase response resulting in
smoother power response and constant
coverage. To further enhance the flexibility and
performance of the AC28/95, JBL engineers
have designed a user selectable crossover
network to ensure complete accuracy of the
high-frequency coverage pattern regardless of
whether the loudspeaker is being used in the
vertical or in the horizontal orientation when
the horn is rotated.
The rugged multiply hardwood enclosure is
designed to work in the vertical plane as well
as in the horizontal plane. Mounting points are
provided for an optional U-bracket and for an
OmniMount®type bracket. The AC28/26 is also
equipped with attachment points located on
the bottom of the enclosure for a stand mount
accessory.
The rugged plywood enclosure features
JBL’s textured DuraFlex™ finish and is
equipped with a heavy duty powder coated
steel, foam-backed grille.
Specifications:
System:
Frequency Range (-10 dB): 53 Hz - 20 kHz
Frequency Response (+/-3 dB): 65 Hz - 20 kHz
Horizontal Coverage: 120°
Vertical Coverage: 60°
Directivity Factor (Q): 8.1 (avg. 500 Hz - 16 kHz)
Directivity Index (DI): 6.9 dB (avg. 500 Hz - 16 kHz)
System Sensitivity1 : 94 dB SPL/1W/1m
Rated Maximum SPL (1m)
2 : 120 dB
System Nominal Impedance: 8 Ohms
Long-Term System Power Rating3:
(Continuous/Program/Peak): 375 W / 750 W / 1500 W
AES Standard Power Rating4 : 700 W
Crossover: 2.1 kHz
Transducers:
Low Frequency Driver:
2 x JBL 228J, 205 mm (8 in) SFG™ driver with 64 mm (2.5 in) edge
wound voice coil
High Frequency Driver: 1 x 2408H-1 25 mm (1 in) exit compression driver, 38 mm
(1.5 in) voice coil
High-Frequency Waveguide: PT-D126HF-1 (field rotatable)
Physical:
Enclosure: 12 mm and 15 mm exterior grade multi-ply hardwood plywood
Suspension Attachment: 6 x M8 points; 1 top, 3 bottom, 2 rear.
4 x M8 rear for OmniMount®60.0.
Finish: Black DuraFlex™ finish. White (-WH) available upon request.
Optional Weather Resistant Versions5 : WRC & WRX available upon request
Grille: Powder coated 16 gauge perforated steel, acoustically
transparent foam backing (grille cloth backing on white units)
Input Connectors: Neutrik Speakon®NL4 (2 wired in parallel), plus CE-compliant
covered barrier strip terminals. Barrier terminals accept up to 5.2
sq mm (10 AGW) wire or max width 9 mm (.375 in) spade lugs.
NL4’s +1/-1 in parallel with barrier strip (+2/-2 loop through).
Environmental Specifications: Mil-Std 810; IPx3 per IEC529. For higher environmental ratings,
use WRC or WRX.
Dimensions (H x W x D): 679.5 x 238.0 254.0 mm
(26.75 x 9.37 x 10 in)
Weight: 18.6 kg (40.9 lb)
Optional Accessories: MTU-28 U-Bracket
365469-001, M8 x 38mm Tee Knob Thumbscrew Kit for use with
BM
B-200k or K&M 195/8 stand mount accessory.
1On axis SPL measured in far field and referenced to 1 meter by inverse square law. Average from 300 Hz to 16 kHz.
2Calculated based on system sensitivity and continuous power handling.
3IEC shaped pink noise, 6 dB crest factor, 100 hour duration.
4AES standard 2 hour duration, with IEC system noise spectrum.
5WRC for outdoor placement where the loudspeaker will be sheltered from direct exposure to the elements. WRX for
direct exposure or extreme environments, such as tropical or beach, or in areas with salt air, extreme high humidity or
rapid changes in temperatures. See WRC/WRX configuration sheet for details.
JBL continually engages in research related to product improvement. Changes introduced into existing products
without notice are a routine expression of that philosophy.
AC28/26

Produkt Specifikationer

Mærke: JBL
Kategori: Højttaler
Model: AC28/26

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