JF50 APP V3
User Manual: JF50
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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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JF50 Technical Specifications
APPLICATIONS
ARCHITECTURAL SPECS
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
The two-way full range loudspeaker system shall incorporate two 5.25-
inch cone low frequency transducers and one 25mm soft-dome high
frequency transducer. The total system shall meet the following perfor-
mance criteria: Frequency Response of 100 - 18k Hz ±3 dB; Axial Sensi-
tivity (1 W @ 1 m) of 94 dB SPL (LF); 100 hour sine wave Power Han-
dling of 120 Watts , AES method Power Handling of 300 Watts; Hori-
zontal 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 cross-
grain-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.
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)
• Group J Hardware Technical Specifications
• Group J Price Lists
• APP Testing Procedures*
• Water Proofing Technical Specifications
• Structural/Mechanical Technical Specifications*
OTHER RELEVANT DOCUMENTS
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Acoustic Performance Partnership 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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JF50
SIDE
FRONT BACK
MOUNTING POINTS 3/18"-16 T-NUTS WELDED TO ALUMINUM PLATE
ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED
5.84
3.07
6.14
R 12.72
6.14
1.05
2.00
7.00
2.13
10°
1.11
1.63
4.22
5.75
TOP/BOTTOM
4.25
2.00
16.50
6.25
2.11
6.25
TOP/BOTTOM
MOUNTING POINTS 1/4"-20 T-NUTS FOR OMNIMOUNT SERIES 75
Drawings JF50
DIMENSIONAL DRAWING
JF-50
SOUND REINFORCEMENT
SYSTEM
NO.
MADE IN USA
-- +
--
+
--
PIN 1
PIN 1+
...
...
EASTERN ACOUSTIC WORKS
INPUT
NEUTRIK
NL 4 MPR
NEUTRIK
INPUT PLATE
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
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Performance Data JF50
FREQUENCY RESPONSE INPUT IMPEDANCE
Q & DIRECTIVITY INDEX (DI)
BEAMWIDTH
Freq Hor Q Ver Q Tot Q Hor Beamwidth Ver Beamwidth
100 1.2 1.3 1.2 360 360
125 1.1 1.2 1.1 360 360
160 1.4 1.7 1.6 360 360
200 1 1.1 1.1 360 360
250 1.5 1.8 1.7 360 360
315 1.7 1.6 1.6 360 360
400 2.1 2.3 2.2 360 360
500 2.1 2.9 2.4 360 249
630 2.5 3.3 2.8 190 360
800 2.6 4.8 3.4 196 110
1000 3.2 6.5 4.3 185 92
1250 4.5 7.7 5.6 121 83
1600 5.2 11.9 6.7 117 62
2000 6.4 11 6.9 99 37
2500 5.3 4.4 3.9 114 118
3150 3.6 3.1 2.7 140 132
4000 3.2 2.2 2.5 127 151
5000 3.9 3.5 3.6 125 131
6300 9.3 9.9 9.2 85 68
8000 9.5 9 9.5 80 85
10000 10.1 10.7 10.5 78 79
12500 21.2 20.2 20.7 50 51
16000 29 32.4 30.6 38 38
20000 18.4 18.5 18.0 45 45
Q & BEAMWIDTH BY FREQUENCY
60
80
100
120
100 1000 10000 20000
dB SPL
Frequency (Hz)
JF50 Axial Response
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1
10
100
0
2
4
6
8
10
12
14
16
18
20
200 1000 10000
Q
Directivity Index
Frequency (Hz)
Horizontal Q and Directivity (1/3 Octave)
Vertical Q and Directivity (1/3 Octave)
Total Q and Directivity (1/3 Octave)
JF50 Q and Directivity
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0
30
60
90
120
150
180
210
240
270
300
330
360
200 1000 10000
Degrees
Frequency (Hz)
Horizontal Beamwidth (1/3 Octave)
Vertical Beamwidth (1/3 Octave)
JF50 Beamwidth vs Frequency
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0
5
10
15
20
20 100 1000 10000 20000
Ohms
Frequency (Hz)
JF50 Full Range Input Impedance (Magnitude)
K
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Acoustic Performance Partnership 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 OFF-AXIS RESPONSE VERTICAL OFF-AXIS RESPONSE
Performance Data JF50
On-axis response normalized to 0 dB. On-axis response normalized to 0 dB.
-20
-10
0
10
200 1000 10000
Attenuation in dB
Frequency (Hz)
Horizontal +10 degrees
Horizontal -10 degrees
JF50 Horizontal ±10°
K
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-20
-10
0
10
200 1000 10000
Attenuation in dB
Frequency (Hz)
Horizontal +20 degrees
Horizontal -20 degrees
JF50 Horizontal ±20°
K
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-20
-10
0
10
200 1000 10000
Attenuation in dB
Frequency (Hz)
Horizontal +30 degrees
Horizontal -30 degrees
JF50 Horizontal ±30°
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-20
-10
0
10
200 1000 10000
Attenuation in dB
Frequency (Hz)
Horizontal +40 degrees
Horizontal -40 degrees
JF50 Horizontal ±40°
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-20
-10
0
10
200 1000 10000
Attenuation in dB
Frequency (Hz)
Vertical +10 degrees
Vertical -10 degrees
JF50 Vertical ±10°
K
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-20
-10
0
10
200 1000 10000
Attenuation in dB
Frequency (Hz)
Vertical +20 degrees
Vertical -20 degrees
JF50 Vertical ±20°
K
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-20
-10
0
10
200 1000 10000
Attenuation in dB
Frequency (Hz)
Vertical +30 degrees
Vertical -30 degrees
JF50 Vertical ±30°
K
B
-20
-10
0
10
200 1000 10000
Attenuation in dB
Frequency (Hz)
Vertical +40 degrees
Vertical -40 degrees
JF50 Vertical ±40°
K
B
Acoustic Performance Partnership 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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Horizontal 1/3 Octave Polar Data JF50
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
100
125
160
200
K
B
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°10000
12500
16000
20000
K
B
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
1600
2000
2500
3150
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B
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
250
315
400
500
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B
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°4000
5000
6300
8000
K
B
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°630
800
1000
1250
K
B
Acoustic Performance Partnership 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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Vertical 1/3 Octave Polar Data JF50
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
100
125
160
200
K
B
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°10000
12500
16000
20000
K
B
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
1600
2000
2500
3150
K
B
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
250
315
400
500
K
B
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°4000
5000
6300
8000
K
B
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°630
800
1000
1250
K
B
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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0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
K
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JF50 125 Hz Horizontal Octave Polar Data
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
K
B
JF50 250 Hz Horizontal Octave Polar Data
Horizontal Octave Polar Data JF50
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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30°
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120°
150°
180°
210°
240°
270°
300°
330°
K
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JF50 500 Hz Horizontal Octave Polar Data
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
K
B
JF50 1000 Hz Horizontal Octave Polar Data
Horizontal Octave Polar Data JF50
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
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0°
30°
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90°
120°
150°
180°
210°
240°
270°
300°
330°
K
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JF50 2000 Hz Horizontal Octave Polar Data
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
K
B
JF50 4000 Hz Horizontal Octave Polar Data
Horizontal Octave Polar Data JF50
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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30°
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120°
150°
180°
210°
240°
270°
300°
330°
K
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JF50 8000 Hz Horizontal Octave Polar Data
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
K
B
JF50 16000 Hz Horizontal Octave Polar Data
Horizontal Octave Polar Data JF50
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
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30°
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120°
150°
180°
210°
240°
270°
300°
330°
K
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JF50 125 Hz Vertical Octave Polar Data
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
K
B
JF50 250 Hz Vertical Octave Polar Data
Vertical Octave Polar Data JF50
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
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30°
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90°
120°
150°
180°
210°
240°
270°
300°
330°
K
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JF50 500 Hz Vertical Octave Polar Data
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
K
B
JF50 1000 Hz Vertical Octave Polar Data
Vertical Octave Polar Data JF50
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
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30°
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90°
120°
150°
180°
210°
240°
270°
300°
330°
K
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JF50 4000 Hz Vertical Octave Polar Data
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
K
B
JF50 2000 Hz Vertical Octave Polar Data
Vertical Octave Polar Data JF50
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
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30°
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90°
120°
150°
180°
210°
240°
270°
300°
330°
K
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JF50 16000 Hz Vertical Octave Polar Data
0°
30°
60°
90°
120°
150°
180°
210°
240°
270°
300°
330°
K
B
JF50 8000 Hz Vertical Octave Polar Data
Vertical Octave Polar Data JF50
