JBL ASB7128 Руководство по эксплуатации онлайн
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JBL ASB7128 Руководство по эксплуатации онлайн

JBL ASB7128 Руководство по эксплуатации онлайн
ASB7128
Ultra Long Excursion
High Power
Dual 18" Subwoofer
Key Features:
䉴
2 x 2269H 18" Differential Drive
®
dual
voice coil dual gap, neodymium
magnet transducers
䉴
4000 watts continuous pink noise,
16000 watts peak power handling
capacity
䉴
Ultra Long Excursion
䉴
Large vent area for high output with
low distortion
䉴
Parallel/Discrete switchable input
mode
䉴
For ground-stacked or suspended
applications in stand-alone arrays or in
combination with other AE Series
products
Applications:
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Performing Arts Facilities
䉴
Theatrical Sound Design
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Auditoriums
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Worship Facilities
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Live Clubs
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Dance Clubs
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Sports Facilities
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Themed Entertainment Venues
The ASB7128 is a high power,
lightweight front-loaded vented
subwoofer enclosure housing two of
JBL’s exclusive 2269H Ultra Long
Excursion 18" Differential Drive
®
woofers. This woofer features
neodymium magnet, dual voice coils
and dual gaps, JBL’s exclusive Vented
Gap Cooling™ and ultra robust
composite cone for high excursion and
extra long life. Woofer is capable of a
peak-to-peak maximum excursion of
89 mm (3.5").
The enclosure is constructed of
multiply hardwood coated in JBL’s
rugged DuraFlex™ finish and is heavily
braced to maximize low-frequency
performance. The rectangular enclosure
is fitted with sixteen M10 threaded
attachment points and utilizes a
14-gauge steel grille internally lined
with acoustically transparent foam to
provide additional driver protection and
give a very professional appearance.
The ASB7128 is part of JBL’s AE
Series, a versatile family of
loudspeakers intended for a wide
variety of applications.
Specifications:
System:
Frequency Range (-10 dB): 20 Hz - 1 kHz
Frequency Response (± 3 dB): 25 Hz - 1 kHz
Input Modes: Drivers Parallel / Drivers Discrete
Transducer Power Rating
1
: 4000 W (16000 W peak), 2 hrs.
Long-Term System Power Rating
2
: 2400 W (9600 W peak), 100 hrs
Maximum SPL (1m)
3
: 25 Hz - 200 Hz: 135 dB-SPL cont avg. (141 dB peak)
System Sensitivity
4
: 25 Hz - 200 Hz: 99 dB-SPL, 1W (2.0V) @ 1m
Nominal Impedance: 4 ohms in parallel-drive mode
2 x 8 ohms in discrete-drive mode
Transducers:
Low Frequency Driver: 2 x 2269H, 460 mm (18 in) dia., 100 mm (4 in) Dual Coil Dual
Gap neodymium Differential Drive
®
, VGC™ drivers
Physical:
Enclosure: Rectangular cabinet, 16 mm (5/8 in) exterior grade 11-ply birch
plywood
Suspension Attachment: 16 points (4 top, 4 bottom, 4 each side) M10 threaded hardware
Finish: Black DuraFlex™ finish. White available upon request.
Grille: Powder coated 14 gauge perforated steel, with acoustically
transparent black foam backing.
Input Connector: NL4 Neutrik Speakon
®
and CE-compliant covered barrier strip
terminals. Barrier terminals accept up to 5.2 sq mm (10 AWG)
wire or max width 9 mm (.375 in) spade lugs. Speakon in
parallel with barrier strip for loop-through.
Environmental Specifications: Mil-Std 810; IP-x3 per IEC529.
Dimensions (H x W x D in 1092 x 560 x 815 mm
vertical cabinet orientation): (43.0 x 22.0 x 32.1 in)
Net Weight: 71.9 kg (158.5 lb)
Optional Accessories: M10 x 35 mm forged shoulder eyebolts with washers.
1
AES standard, one decade pink noise with 6 dB crest factor within device's operational band, free air. Standard AES 2 hr rating
plus long-term 100 hr rating are specified for low-frequency transducers.
2
AES standard, one decade pink noise with 6 dB crest factor, in cabinet, long-term 100 hr rating.
3
Calculated based on power rating and sensitivity, exclusive of power compression.
4
Half-space (2␲) loading, averaged in specified frequency band.
JBL continually engages in research related to product improvement. Changes introduced into existing products without notice
are an expression of that philosophy.
Professional Series
76708_JBL_ASB7128.qxd 6/3/09 11:08 AM Page 1

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