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AL AL PE
JF50 Technical Specifications
APPLICATIONS
The JF50's extremely small size, smooth frequency response, broad, even
coverage pattern and surprisingly high output capabilities make it a
natural candidate for applications where aesthetic requirements or space
allowances make it almost impossible to locate a loudspeaker, but high
quality sound is nonetheless a high priority.
•
•
•
•
•
Trade Show Exhibits
• Hotels
Houses of Worship
• Boardrooms
High-Output Distributed Systems` • Theme Parks
Underbalcony and Delay Fills
• Stage Lip Systems
High Quality Background/Foreground Music Systems
SPECIFICATIONS
Frequency Response
±3 db
100 Hz to 18 kHz
-10 dB 67 Hz
Axial Sensitivity
SPL 1w @ 1m 94 dB
Impedance
Nominal 16Ω
Power Handling
AES
300 Watts
100 Hour Sine Wave 120 Watts
Maximum Output
Long Term
112 dB SPL
Peak 119 dB SPL
Nominal Coverage Angles (-6 dB)
Horizontal
120 degrees
Vertical 80 degrees
Additional Descriptive Data
LF Subsystem 2 x 5.25" Vented
HF Subsystem 1 x 1" soft dome
Powering Mode Passive
Finish Black Catalyzed
Polyurethane Coating
Connectors
Neutrik NL4 SpeakOn® Connector
and 2-pin Barrier Strip
Grill
Vinyl Coated Perforated Steel
Dimensions & Weights
Height 16.5 in (419 mm)
Width 6.25 in (159 mm)
Depth
6.0 in
(152 mm)
Back Width 4.22 in (107 mm)
Net Weight 15.5 lbs. (7.0 kg)
Shipping Weight 17.5 lbs. (7.9 kg)
OTHER RELEVANT DOCUMENTS
•
•
•
•
•
Group J Hardware Technical Specifications
Group J Price Lists
APP Testing Procedures*
Water Proofing Technical Specifications
Structural/Mechanical Technical Specifications*
ARCHITECTURAL SPECS
The two-way full range loudspeaker system shall incorporate two 5.25inch cone low frequency transducers and one 25mm soft-dome high
frequency transducer. The total system shall meet the following performance criteria: Frequency Response of 100 - 18k Hz ±3 dB; Axial Sensitivity (1 W @ 1 m) of 94 dB SPL (LF); 100 hour sine wave Power Handling of 120 Watts , AES method Power Handling of 300 Watts; Horizontal coverage of 120 degrees between 6dB down points; Vertical
coverage of 80 degrees between 6dB down points.
The system’s two low frequency drivers shall be loaded into a single
vented enclosure that provides optimally controlled acoustic diaphragm
loading. An internal passive frequency dividing network shall provide a
fourth order acoustic crossover between the low and high frequency
subsystems and shall incorporate system equalization. The crossover
shall be designed so that maximally flat frequency response is obtained.
The enclosure shall be trapezoidal and constructed of void-free crossgrain-laminated birch plywood with internal bracing. It shall be finished
in a black catalyzed polyurethane coating. The front of the system shall
be covered with a protective perforated steel grill assembly coated with
vinyl to dampen resonance. Mounting hardware attachment points shall
be located on the top and bottom of the enclosure. Attachment points
for Omnimounttm brand 75 series mounting hardware shall be located
on the rear of the enclosure.
The two-way full range loudspeaker system shall be the EAW model
JF50.
Acoustic Performance Partnership
Eastern Acoustic Works
JF50 Page 1
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
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Drawings JF50
INPUT PLATE
DIMENSIONAL DRAWING
JF50
MOUNTING POINTS 3/18"-16 T-NUTS WELDED TO ALUMINUM PLATE
MOUNTING POINTS 1/4"-20 T-NUTS FOR OMNIMOUNT SERIES 75
ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED
6.25
4.22
6.14
1.11
1.63
EASTERN ACOUSTIC WORKS
JF-50
4.25
2.00
SOUND REINFORCEMENT
SYSTEM
NO.
MADE IN USA
16.50
7.00
1.05
--
+
INPUT
2.13
FRONT
SIDE
2.11
6.25
BACK
2.00
PIN 1 -- ... -PIN 1+ ... +
NEUTRIK
3.07
5.75
6.14
R 12.72
5.84
10°
NL 4 MPR
TOP/BOTTOM
Acoustic Performance Partnership
TOP/BOTTOM
Eastern Acoustic Works
JF50 Page 2
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
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Performance Data JF50
FREQUENCY RESPONSE
INPUT IMPEDANCE
JF50 Full Range Input Impedance (Magnitude)
JF50 Axial Response
120
20
15
Ohms
dB SPL
100
10
80
5
B
B
K
K
0
60
100
1000
10000
20000
20
100
1000
Q & DIRECTIVITY INDEX (DI)
20
Horizontal Q and Directivity (1/3 Octave)
Vertical Q and Directivity (1/3 Octave)
16
Total Q and Directivity (1/3 Octave)
14
10
8
6
B
K
4
2
1
200
0
10000
1000
Frequency (Hz)
BEAMWIDTH
JF50 Beamwidth vs Frequency
360
330
Horizontal Beamwidth (1/3 Octave)
300
Vertical Beamwidth (1/3 Octave)
270
240
Degrees
Q
12
Directivity Index
18
10
20000
Q & BEAMWIDTH BY FREQUENCY
JF50 Q and Directivity
100
10000
Frequency (Hz)
Frequency (Hz)
210
180
150
Freq
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
6300
8000
10000
12500
16000
20000
Hor Q
1.2
1.1
1.4
1
1.5
1.7
2.1
2.1
2.5
2.6
3.2
4.5
5.2
6.4
5.3
3.6
3.2
3.9
9.3
9.5
10.1
21.2
29
18.4
Ver Q
1.3
1.2
1.7
1.1
1.8
1.6
2.3
2.9
3.3
4.8
6.5
7.7
11.9
11
4.4
3.1
2.2
3.5
9.9
9
10.7
20.2
32.4
18.5
Tot Q
1.2
1.1
1.6
1.1
1.7
1.6
2.2
2.4
2.8
3.4
4.3
5.6
6.7
6.9
3.9
2.7
2.5
3.6
9.2
9.5
10.5
20.7
30.6
18.0
Hor Beamwidth Ver Beamwidth
360
360
360
360
360
360
360
360
360
360
360
360
360
360
360
249
190
360
196
110
185
92
121
83
117
62
99
37
114
118
140
132
127
151
125
131
85
68
80
85
78
79
50
51
38
38
45
45
120
90
60
30
B
0
200
K
1000
10000
Frequency (Hz)
Acoustic Performance Partnership
Eastern Acoustic Works
JF50 Page 3
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
Performance Data JF50
HORIZONTAL OFF-AXIS RESPONSE
VERTICAL OFF-AXIS RESPONSE
On-axis response normalized to 0 dB.
0
-10
Horizontal +10 degrees
B
K
-20
200
Horizontal -10 degrees
1000
JF50 Vertical ±10°
10
Attenuation in dB
Attenuation in dB
On-axis response normalized to 0 dB.
JF50 Horizontal ±10°
10
0
-10
Vertical +10 degrees
B
K
-20
200
10000
Attenuation in dB
Attenuation in dB
Horizontal +20 degrees
B
K
-20
200
Horizontal -20 degrees
1000
JF50 Vertical ±20°
10
0
-10
0
-10
Vertical +20 degrees
B
K
-20
200
10000
Attenuation in dB
Attenuation in dB
Horizontal +30 degrees
K
-20
200
Horizontal -30 degrees
1000
JF50 Vertical ±30°
10
0
B
0
-10
Vertical +30 degrees
B
K
-20
200
10000
Attenuation in dB
Horizontal +40 degrees
-20
200
K
Horizontal -40 degrees
1000
JF50 Vertical ±40°
10
0
B
10000
0
-10
Vertical +40 degrees
B
-20
200
Frequency (Hz)
Acoustic Performance Partnership
10000
Frequency (Hz)
JF50 Horizontal ±40°
-10
Vertical -30 degrees
1000
Frequency (Hz)
10
10000
Frequency (Hz)
JF50 Horizontal ±30°
-10
Vertical -20 degrees
1000
Frequency (Hz)
10
10000
Frequency (Hz)
JF50 Horizontal ±20°
10
Vertical -10 degrees
1000
Frequency (Hz)
Attenuation in dB
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K
Vertical -40 degrees
1000
10000
Frequency (Hz)
Eastern Acoustic Works
JF50 Page 4
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
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Horizontal 1/3 Octave Polar Data JF50
0°
330°
0°
100
30°
330°
1600
30°
125
300°
270°
300°
2500
200
3150
270°
120°
90°
240°
B
K
210°
60°
160
90°
240°
B
2000
60°
120°
K
150°
210°
180°
0°
330°
150°
180°
0°
250
30°
330°
4000
30°
315
300°
60°
270°
B
6300
500
8000
270°
120°
90°
240°
B
K
210°
60°
400
90°
240°
5000
300°
120°
K
150°
210°
180°
0°
330°
150°
180°
0°
630
30°
330°
10000
30°
800
300°
60°
270°
90°
240°
B
12500
300°
120°
1000
16000
1250
20000
270°
210°
150°
120°
K
210°
180°
Acoustic Performance Partnership
90°
240°
B
K
60°
150°
180°
Eastern Acoustic Works
JF50 Page 5
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
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Vertical 1/3 Octave Polar Data JF50
0°
330°
0°
100
30°
330°
1600
30°
125
300°
270°
300°
2500
200
3150
270°
120°
90°
240°
B
K
210°
60°
160
90°
240°
B
2000
60°
120°
K
150°
210°
180°
0°
330°
150°
180°
0°
250
30°
330°
4000
30°
315
300°
60°
270°
B
6300
500
8000
270°
120°
90°
240°
B
K
210°
60°
400
90°
240°
5000
300°
120°
K
150°
210°
180°
0°
330°
150°
180°
0°
630
30°
330°
10000
30°
800
300°
60°
270°
90°
240°
B
12500
300°
120°
1000
16000
1250
20000
270°
210°
150°
120°
K
210°
180°
Acoustic Performance Partnership
90°
240°
B
K
60°
150°
180°
Eastern Acoustic Works
JF50 Page 6
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
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Horizontal Octave Polar Data JF50
JF50 125 Hz Horizontal Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
JF50 250 Hz Horizontal Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
Acoustic Performance Partnership
Eastern Acoustic Works
JF50 Page 7
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
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Horizontal Octave Polar Data JF50
JF50 500 Hz Horizontal Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
JF50 1000 Hz Horizontal Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
Acoustic Performance Partnership
Eastern Acoustic Works
JF50 Page 8
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
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Horizontal Octave Polar Data JF50
JF50 2000 Hz Horizontal Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
JF50 4000 Hz Horizontal Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
Acoustic Performance Partnership
Eastern Acoustic Works
JF50 Page 9
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
ACOUS
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Horizontal Octave Polar Data JF50
JF50 8000 Hz Horizontal Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
JF50 16000 Hz Horizontal Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
Acoustic Performance Partnership
Eastern Acoustic Works
JF50 Page 10
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
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Vertical Octave Polar Data JF50
JF50 125 Hz Vertical Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
JF50 250 Hz Vertical Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
Acoustic Performance Partnership
Eastern Acoustic Works
JF50 Page 11
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
ACOUS
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PERF
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Vertical Octave Polar Data JF50
JF50 500 Hz Vertical Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
JF50 1000 Hz Vertical Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
Acoustic Performance Partnership
Eastern Acoustic Works
JF50 Page 12
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
ACOUS
TIC
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RTN
ORMANCE
PA
PERF
AL
Vertical Octave Polar Data JF50
JF50 2000 Hz Vertical Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
JF50 4000 Hz Vertical Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
Acoustic Performance Partnership
Eastern Acoustic Works
JF50 Page 13
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540
ACOUS
TIC
ERSHIP
RTN
ORMANCE
PA
PERF
AL
Vertical Octave Polar Data JF50
JF50 8000 Hz Vertical Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
JF50 16000 Hz Vertical Octave Polar Data
0°
330°
30°
300°
60°
270°
90°
240°
B
120°
K
210°
150°
180°
Acoustic Performance Partnership
Eastern Acoustic Works
JF50 Page 14
One Main Street, Whitinsville MA, 01524 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • BBS 800/889-2540