EAW CB2591x User manual

CINEMA SERIES
One Main Street, Whitinsville, MA 01588 • [phone] • FAX [phone] • Email [email protected] • Web http://www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. • CB2591x PUB#888121 Rev(A)/6/1/99 • Printed In USA
Technical Specifications CB2591x
APPLICATION
• For large theaters
• Passive 2-way screen channel loudspeaker
• Requires only one amplifier channel and no external crossover
PRODUCT INFORMATION
The CB2591x passive large format 2-way screen channel loudspeaker
system is designed to provide high output, high definition full range
frequency response.
The two component system includes a BV253C vented dual 15-in low
frequency unit and EAW’s HK2591 high frequency system – a large
format 90°x 40°horn loading a large diaphragm 2-in exit compres-
sion driver.
The LF and HF sections are integrated via an internal passive
crossover/filter network. EAW's complex, computer-designed pas-
sive filter networks are tightly aligned to the loudspeakers they
control and go beyond merely diving the signal, performing critical
equalization functions.
The HK2591's large format HF cinema horn ensures even distribution
of HF information over the entire audience area.
The BV253C’s optimally vented enclosure uses enclosure resonance
to increase LF response while limiting driver excursion. This method
produces less distortion and minimizes driver strain while extending
LF response to the lowest octaves. Its shallow enclosure dimensions
allow convenient placement behind the screen.
The LF section includes a two-terminal barrier strip that accomodates
bare wire, tinned leads or spade lugs. The input panel is located on
the side of the LF enclosure for convenient access in cramped
installation areas. A jumper cable is provided to extend the signal
chain to the HF component.
The LF enclosure has 3 mounting points to allow optimum front/rear
positioning of the HF component. The adjustable mounting bracket
attaching the HF horn to the LF enclosure allows the HF horn to be
aimed independently of the LF section in both the horizontal and
vertical planes and can be locked once it is positioned.
All components feature a textured black finish to eliminate the
reflection of light through perforated cinema screens.
ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED.
999514 (0)
exp 11/16/98 dpm
CENTER OF GRAVITY.
CB2591x
24.50 16.36
39.50
28.91
RIGHT SIDE
2.25
5.25
17.75
20°7.5°
71.75
13.13
1.50
7.25
TOP
FRONT
HK2591
INPUT
BV253C

CINEMA SERIES
One Main Street, Whitinsville, MA 01588 •[phone] •FAX [phone] •Email [email protected] •Web http://www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. •CB2591x PUB#888121 Rev(A)/6/1/99 •Printed In USA
Technical Specifications CB2591x
DESCRIPTIVE DATA
LF Subsystem & Loading 2x 15 vented
HF Subsystem & Loading 1x 2" compression driver on 90x40 horn
Number of Audio Bands 2-way
Powering Mode Passive, Full Range
Recommended High-Pass
Frequency (24 dB/Octave) 30 Hz
Cabinet Type (shape) Rectangular LF cab with externally
mounted HF horn
Enclosure Materials 3/4" MDF with 15mm birch plywood
baffle
Finish Textured Black
Connectors 2-terminal barrier strip
NOMINAL DATA
Frequency Response (1 Watt @ 1m)
±3 dB 42 Hz - 18 kHz
Axial Sensitivity (dB SPL, 1 Watt @ 1m)
Full Range 100
Impedance (Ohms)
Full Range 4
Power Handling, AES Standard (Watts)
Full Range 500
Calculated Maximum Output (dB SPL @ 1m)
Full Range Peak 133.0
Full Range Long Term 127.0
Nominal Coverage Angle/-6 dB points (degrees)
Horizontal 90
Vertical 40
Recommended Complementary Systems
Sub SB184C, SB185C, SB284C
Dimensions Inches Centimeters
Height 77.75 197.5
Width 29.00 73.7
Depth 34.19 86.8
Weights Pounds Kilograms
Net Weight 182 82.6
Shipping Weight 195 88.5
COMPONENTS & CONSTRUCTION
The CB2591x is a high output, passive, two-way, full range loud-
speaker system intended for use in behind screen cinema applica-
tions. It features dual 15-in low frequency transducers mounted in
a compact, vented enclosure and a 2-in exit titanium diaphragm
compression driver mounted to a large format 90°x 40°constant
directivity horn.
The CB2591x requires no external active electronic crossover. The HF
and LF sections are integrated via an internal passive crossover/
filter network. EAW's complex, computer-designed passive filter
networks are tightly aligned to the loudspeakers they control and go
beyond merely diving the signal, performing critical equalization
functions.
The low frequency enclosure is constructed of 3/4-in thick Medium
Density Fiberboard (MDF) with the exception of the baffle which is
15mm void-free, cross-grain-laminated Baltic birch plywood. Exten-
sive internal bracing is employed to minimize panel resonances
resulting from the large acoustical energies generated within the
enclosures.
The high frequency horn is constructed from a specially dampened
fiberglass which is non-resonant, lightweight and non-reflective.
The LF section includes a two-terminal barrier strip that accomodates
bare wire, tinned leads or spade lugs. The input panel is located on
the side of the LF enclosure for convenient access in cramped
installation areas. A jumper cable is provided to extend the signal
chain to the HF component.
The adjustable mounting bracket attaching the HF horn to the LF
enclosure can be positioned at one of three mounting points for
optimum HF horn placement. It allows the HF horn to be aimed
independently of the LF section in both the horizontal and vertical
planes and can be locked once it is positioned.