CB259z_SPECS_revA
CB259z/259zx
Specifications
group • C
2-WAY FULL-RANGE LOUDSPEAKER SYSTEM 90° × 45°
See NOTES TABULAR DATA for details
CONFIGURATION
Subsystem:
Transducer Loading
LF 2× 15 in cone Vented
HF 1× 2 in exit, 3 in voice coil compression driver
Horn-loaded
Operating Mode:
Amplifier Channels
Single-amp LF/HF Bi-amp LF,HF External Signal Processing
High pass filter
DSP w/2-way filters
PERFORMANCE 1
Operating Range: 40 Hz to 20 kHz
Nominal Beamwidth: (rotatable)
Horz90°
Vert45°
Axial Sensitivity (whole space SPL):
LF/HF 99 dB 40 Hz to 20 kHz
DESCRIPTION
LF 102 dB 40 Hz to 1500 Hz
HF 108 dB 800 Hz to 20 kHz
Input Impedance (ohms):
Nominal
Minimum
LF/HF 4 4.3 @ 122 Hz
LF 4 4 @ 230 Hz
HF 8 7.5 @ 3000 Hz
High Pass Filter: High Pass =>44 Hz, 12 dB/octave Butterworth
The CB259z high power, full range 2-way stage/screen loudspeaker system
fills theaters with all the high impact, full-range sound encoded on today’s
digital soundtracks while reproducing voices clearly and naturally.
Accelerated Life Test: 2
The two component system includes a BV253z vented dual 15-in low frequency unit and a HK259z high frequency system - a medium format 90° x 45°
HF horn loading a large diaphragm 2-in exit compression driver. The HK259z’s
constant directivity horn assures even distribution of high frequency information to every seat in the house. Its shortened horn throat minimizes horn
throat distortion, eliminating the 700Hz “honk” that has plagued cinema HF
horns.
The BV253z’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 of human hearing. Its shallow enclosure dimensions allow
convenient placement behind the screen.
The adjustable steel bracket attaching the horn to the LF enclosure can be
positioned at one of four mounting points for optimum front/rear HF horn
placement. The bracket 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. The HF component comes completely pre-assembled from
the factory to minimize assembly time.
LF/HF 63.3 V 1000 W @ 4 ohm
LF 63.3 V 1000 W @ 4 ohm
HF 28.3 V 100 W @ 8 ohm
Calculated Axial Output Limit (whole space SPL):
Average
Peak
LF/HF 129 dB
135 dB
LF 132 dB
138 dB
HF 128dB 134 dB
ORDERING DATA
Description
EAW HK294z Horn Kit
Part Number
2037628-90
EAW BV253z LF Cabinet
2037548-90
Optional Accessories
Passive Crossover Kit XK259zx
2037625-90
The LF component’s high power input signal requires the use of a two-terminal barrier strip input connector to create a gas-tight connection, minimizing
corrosion and maximizing signal transfer. The barrier strip accommodates bare
wire, tinned leads or spade lugs. The compression driver comes complete with
wires long enough to connect to the LF section, allowing the user to connect
both devices in the same location. Input connectors are located on the side of
the LF enclosure for convenient access in cramped installation areas.
Users can convert the CB259z to the full range passive CB259zx by ordering
and installing the optional passive crossover/filter kit. This allows the CB259zx
to be powered by a single amplifier channel.
Eastern Acoustic Works • One Main Street • Whitinsville, MA 01588 • tel 800 992 5013 / 508 234 6158 • fax 508 234 8251 • www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice.
Part Number: RD0654 Rev A00
January 2012
CB259z/259zx
Specifications
group • C
ENCLOSURE
Material Medium density hardwood plywood
Finish Wear resistant black paint
NOTES:
1. WEIGHT APPROX:
2037628-90 (HK294z) 19.6 lb. [8.9 kg.]
2037548-90 (BV253z) 96.6 lb. [43.8 kg.]
2. SHIPPING WEIGHT APPROX:
2037628-90 (HK294z) 27.4 lb. [12.4 kg.]
2037548-90 (BV253z) 108.6 lb. [49.3 kg.
3. EACH PRODUCT SHIPS SEPARATELY.
24.50
[622.3]
TOP
CB259z
20.62
[523.7]
HK294z
EAW 2037628-90
2.87 [72.9]
7.25
[184.1]
53.88
[1368.6]
BV253z
EAW 2037548-90
39.50
[1003.3]
FRONT
INPUT
THIS SIDE
ONLY
2.87
[72.9]
5.25
[133.4]
17.75
[450.9]
RIGHT SIDE
www.eaw.com
NOTE: This drawing has been reduced. Do not scale.
Eastern Acoustic Works • One Main Street • Whitinsville, MA 01588 • tel 800 992 5013 / 508 234 6158 • fax 508 234 8251 • www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice.
Part Number: RD0654 Rev A00
January 2012
CB259z/259zx
Specifications
group • C
PERFORMANCE DATA
See NOTES GRAPHIC DATA for details
Frequency Response: Processed - Focused
Frequency Response: Processed
LF = green, HF = black, Complete = blue
10
10
0
0
-10
-10
SPL (dB)
SPL (dB)
LF = green, HF = black, Complete = blue
-20
-20
-30
-30
-40
-40
-50
10
100
1000
Frequency (Hz)
-50
20000
10
100
1000
Frequency (Hz)
20000
Impedance
Frequency Response: Unprocessed
LF = green, HF = black, Single-amp = blue
LF = green, HF = black, Single-amp = blue
120
100
110
Ohms
SPL (dB)
100
90
10
80
70
60
1
10
100
1000
20000
10
Frequency (Hz)
Phase Linearity
1000
Frequency (Hz)
20000
Beamwidth
Complete = blue
Horizontal = orangeVertical = black
180
360
90
100
Degrees
Degrees
100
-0
10
-90
1
-180
10
100
1000
Frequency (Hz)
20000
100
1000
20000
Frequency (Hz)
Eastern Acoustic Works • One Main Street • Whitinsville, MA 01588 • tel 800 992 5013 / 508 234 6158 • fax 508 234 8251 • www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice.
Part Number: RD0654 Rev A00
January 2012
CB259z/259zx
Specifications
group • C
HORIZONTAL POLAR DATA
See NOTES GRAPHIC DATA for details
90˚
90˚
135˚
135˚
45˚
180˚
0˚
-135˚
100Hz
125Hz
160Hz
200Hz
45˚
180˚
-135˚
-45˚
-90˚
90˚
90˚
135˚
45˚
180˚
0˚
-135˚
250Hz
315Hz
400Hz
500Hz
45˚
180˚
-135˚
-45˚
-45˚
-90˚
-90˚
90˚
90˚
135˚
135˚
45˚
180˚
0˚
-135˚
-45˚
-90˚
630Hz
800Hz
1000Hz
1250Hz
0˚
4000Hz
5000Hz
6300Hz
8000Hz
-45˚
-90˚
135˚
0˚
1600Hz
2000Hz
2500Hz
3150Hz
45˚
180˚
0˚
-135˚
10000Hz
12500Hz
16000Hz
-45˚
-90˚
Eastern Acoustic Works • One Main Street • Whitinsville, MA 01588 • tel 800 992 5013 / 508 234 6158 • fax 508 234 8251 • www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice.
Part Number: RD0654 Rev A00
January 2012
CB259z/259zx
Specifications
group • C
VERTICAL POLAR DATA
See NOTES GRAPHIC DATA for details
90˚
90˚
135˚
135˚
45˚
180˚
0˚
-135˚
100Hz
125Hz
160Hz
200Hz
45˚
180˚
-135˚
-45˚
-90˚
90˚
90˚
135˚
45˚
180˚
0˚
-135˚
250Hz
315Hz
400Hz
500Hz
45˚
180˚
-135˚
-45˚
-45˚
-90˚
-90˚
90˚
90˚
135˚
135˚
45˚
180˚
0˚
-135˚
-45˚
-90˚
630Hz
800Hz
1000Hz
1250Hz
0˚
4000Hz
5000Hz
6300Hz
8000Hz
-45˚
-90˚
135˚
0˚
1600Hz
2000Hz
2500Hz
3150Hz
45˚
180˚
0˚
-135˚
10000Hz
12500Hz
16000Hz
-45˚
-90˚
Eastern Acoustic Works • One Main Street • Whitinsville, MA 01588 • tel 800 992 5013 / 508 234 6158 • fax 508 234 8251 • www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice.
Part Number: RD0654 Rev A00
January 2012
CB259z/259zx
Specifications
group • C
REVISIONS
REV:
DESCRIPTION:
A00
NEW ISSUE PER ECOWHT7906 MJC
SIGNAL DIAGRAM
INPUT PANEL
2-Way, Bi-Amp (LF, HF)
HF INPUT
DSP
EQ
DELAY
HPF/LPF
TO HORN KIT
−
AMP
HF
AMP
LF
+
OPTIONAL SIGNAL DIAGRAM
2-Way, Single-Amp (LF/HF)
BV253z
DSP
EQ
DELAY
HPF/LPF
−
HF
AMP
XVR
LF
+
LF INPUT
LEGEND
DSP: EAW UX8800 Digital Signal Processor –or– Integral Digital Signal
Processing for NT products.
HPF:
High Pass Filter for crossover –or– Recommended High Pass Filter.
LPF:
Low Pass Filter for crossover.
LF/MF/HF:
Low Frequency / Mid Frequency / High Frequency.
AMP: User Supplied Power Amplifier –or– Integral Amplifier for NT products.
XVR:
Passive LPFs, HPFs, and EQ integral to the loudspeaker.
EAW Focusing: Digital Signal Processor capable of implementing EAW Focusing.
NOTES
TABULAR DATA
TITLE:
DWG SPEC/INPUT BV253z
1. Measurement/Data
Processing
LOUD Technologies
Inc.Systems: Primary - FChart: proprietary EAW software; Secondary - Brüel & Kjær 2012.
DATE:
DRAWN BY:
REV:
SCALE:
DRAWING NUMBER:
2. Microphone
Systems:
EarthworksMA
M30;
Brüel
ONE MAIN
STREET, WHITINSVILLE,
01588
USA & Kjær 4133
1:1
MJC
A00
2038207-SD
09/21/11
3.ILLUSTRATOR
Measurements: Dual channel FFT; length: 32 768 samples;LOUD
sample
rate: 48 kHz; logarithmicSHEET:
sine wave sweep.
ADOBE
TECHNOLOGIES INC, ALL RIGHTS RESERVED
1 of 1
4. Measurement System Qualification (includes all uncertainties): SPL: accuracy +/-0.2 dB @ 1 kHz, precision +/-0.5 dB 20 Hz to 20 kHz, resolution 0.05 dB; Frequency: accuracy +/-1 %, precision +/-0.1 Hz, resolution the larger of 1.5 Hz or 1/48 octave; Time: accuracy +/-10.4 μs, precision +/-0.5 μs, resolution 10.4 μs; Angular: accuracy +/-1°, precision +/-0.5°, resolution 0.5°.
5. Environment: Measurements time-windowed and processed to eliminate room effects, approximating an anechoic environment. Data processed as anechoic or fractional space, as noted.
6. Measurement Distance: 7.46 m. Acoustic responses represent complex summation of the subsystems at 20 m. SPL is referenced to other distances using the Inverse Square Law.
7. Enclosure Orientation: For beamwidth and polar specifications, as shown in Mechanical Specification drawing.
8. Volts: Measured rms value of the test signal.
9. Watts: Per audio industry practice, “loudspeaker watts” are calculated as voltage squared divided by rated nominal impedance. Thus, these are not True Watt units of energy as defined
by International Standard.
10. SPL: (Sound Pressure Level) Equivalent to the average level of a signal referenced to 0 dB SPL = 20 microPascals.
11. Subsystem: This lists the transducer(s) and their acoustic loading for each passband. Sub = Subwoofer, LF = Low Frequency, MF = Mid Frequency, HF = High Frequency.
12. Operating Mode: User selectable configurations. Between system elements, a comma (,) = separate amplifier channels; a slash (/) = single amplifier channel. DSP = Digital Signal Processor.
IMPORTANT: To achieve the specified performance, the listed external signal processing must be used with EAW-provided settings.
13. Operating Range: Range where the processed Frequency Response stays within -10 dB SPL of the power averaged SPL within this range; measured on the geometric axis. Narrow band
dips are excepted.
14. Nominal Beamwidth: Design angle for the -6 dB SPL points, referenced to 0 dB SPL as the highest level.
15. Axial Sensitivity: Power averaged SPL over the Operating Range with an input voltage that would produce 1 W at the nominal impedance; measured with no external processing on the geometric axis, referenced to 1 m.
16. Nominal Impedance: Selected 4, 8, or 16 ohm resistance such that the minimum impedance point is no more than 20% below this resistance over the Operating Range.
17. Accelerated Life Test: Maximum test input voltage applied with an EIA-426B defined spectrum; measured with recommended signal processing and Recommended Protection Filter.
18. Calculated Axial Output Limit: Highest average and peak SPLs possible during the Accelerated Life Test. The Peak SPL represents the 2:1 (6 dB) crest factor of the Life Test signal.
19. High Pass Filter: This helps protect the loudspeaker from excessive input signal levels at frequencies below the Operating Range.
GRAPHIC DATA
1. Resolution: To remove insignificant fine details, 1/12 octave cepstral smoothing was applied to acoustic frequency responses and 1/3 octave cepstral smoothing was applied to the beamwidth and impedance data. Other graphs are plotted using raw data.
2. Frequency Responses: Variation in acoustic output level with frequency for a constant input signal. Processed: normalized to 0 dB SPL. Unprocessed inputs: 2 V (4 ohm nominal impedance), 2.83 V (8 ohm nominal impedance), or 4 V (16 ohm nominal impedance) referenced to a distance of 1 m.
3. Processor Response: The variation in output level with frequency for a constant input signal of 0.775 V = 0 dB reference.
4. Beamwidth: Average angle for each 1/3 octave frequency band where, starting from the rear of the loudspeaker, the output first reaches -6 dB SPL referenced to 0 dB SPL as the highest level. This method means the output may drop below -6 dB SPL within the beamwidth angle.
5. Impedance: Variation in impedance magnitude, in ohms, with frequency without regard to voltage/current phase. This means the impedance values may not be used to calculate True Watts (see 9 above).
6. Polar Data: Horizontal and vertical polar responses for each 1/3 octave frequency band 100 Hz to 16 kHz or Operating Range.
Eastern Acoustic Works • One Main Street • Whitinsville, MA 01588 • tel 800 992 5013 / 508 234 6158 • fax 508 234 8251 • www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice.
Part Number: RD0654 Rev A00
January 2012
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising