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Stylized design and low weight ready for everything! 4x 6 ... Audio JK46A Datablad.pdf · 4x 6"...
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www.master-audio.com Stylized design and low weight ready for everything! 4x 6" woofers and a 1.75" long throw asymmetrical horn make JK46A a truly multipurpose FULL RANGE system with a wide frequency response and great sound quality. highlights The JK46A is an active column system composed by 4x 6" neodymium woofers with carbon fiber cone and 1x 1.75" voice coil neodymium compression driver coupled to a 50º to 100º x 55º asymmetrical dispersion horn. The JK46A design concept allows a true FULL RANGE sound reproduction in a very light and compact enclosure. The Class D amplifier delivers 700 W (1400 W peak) and it is controlled by a DSP. The DSP provides all necessary signal processing (crossover, EQs, delay, limiters, in- put overload) as well as several useful presets to adjust JK46A to different require- ments. The amplifier's SMPS (switch mode power supply with around 90% of efficiency) al- lows to deliver maximum power with minimum consumption in an extremely low weight size. The amplifier's rear connections and control panel has a graphic LCD screen to dis- play the different settings, presets, volume control and adjustments done by the user. A capacitive keyboard guarantees the reliability of the system even under hu- midity and extreme weather conditions. Connectors are placed on a 45º plane to effectively protect them from rain or moisture. The on-screen output power display and limiter led help to easy monitor the system. Several accessories allow easy flying. A 35 mm socket for mounting the loudspeaker on a speaker stand is provided in the bottom of the cabinet. The cabinet is made in birch plywood with internal metal angles for rigging. It is painted with Polyurea® to offer the maximum reliability and strength for touring as well as for top demanding applications. 4x 6" ACTIVE FULL RANGE COLUMN SPEAKER SYSTEM
Transcript of Stylized design and low weight ready for everything! 4x 6 ... Audio JK46A Datablad.pdf · 4x 6"...
www.master-audio.com
Stylized design and low weight ready for everything! 4x 6" woofers and a 1.75" long throw asymmetrical horn make JK46A a truly multipurpose
FULL RANGE system with a wide frequency response and great sound quality.
highlights
The JK46A is an active column system composed by 4x 6" neodymium woofers with carbon fiber cone and 1x 1.75" voice coil neodymium compression driver coupled to a 50º to 100º x 55º asymmetrical dispersion horn.
The JK46A design concept allows a true FULL RANGE sound reproduction in a very light and compact enclosure.
The Class D amplifier delivers 700 W (1400 W peak) and it is controlled by a DSP.
The DSP provides all necessary signal processing (crossover, EQs, delay, limiters, in-put overload) as well as several useful presets to adjust JK46A to different require-ments.
The amplifier's SMPS (switch mode power supply with around 90% of efficiency) al-lows to deliver maximum power with minimum consumption in an extremely low weight size.
The amplifier's rear connections and control panel has a graphic LCD screen to dis-play the different settings, presets, volume control and adjustments done by the user. A capacitive keyboard guarantees the reliability of the system even under hu-midity and extreme weather conditions.
Connectors are placed on a 45º plane to effectively protect them from rain or moisture.
The on-screen output power display and limiter led help to easy monitor the system.
Several accessories allow easy flying. A 35 mm socket for mounting the loudspeaker on a speaker stand is provided in the bottom of the cabinet.
The cabinet is made in birch plywood with internal metal angles for rigging. It is painted with Polyurea® to offer the maximum reliability and strength for touring as well as for top demanding applications.
4x 6" ACTIVE FULL RANGE COLUMN SPEAKER SYSTEM
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technical featuresAmplifier (Class D Bi-amplified)
600 + 100 W (program) 1200 + 200 W (peak)
Input sensitivity 8 dBu – 1.94 V
Input Impedance 20 kΩ Balanced
Maximum input level 20 dBu
Mains Universal Switching Power Supply 85-265 V/45-65 Hz
Average current draw 0.7 A (Heavy duty musical program)
SPL (1 m) 125 dB continuous, 128 dB peak
Built-in DSP 48 bit (including several factory presets)
AD/DA converters 24 bit – 48 kHz
Standby mode consumption < 5 W
Adjustable Delay line 118 ms / 40 m
Crossover frequency 1k4 Hz
Frequency response (-10 dB) 50 Hz – 19 kHz
Components LF–MF HF
4x 6” Neodymium woofers with carbon fiber cone (1.5” voice coil) 1.75” PETP diaphragm neodymium driver
Directivity (HxV) 50º to 100º x 55º
Directivity factor (Q) 12.6
Directivity index (DI) 11 dB
Finish Multilayer plywood with high resistant black Polyurea® coating
Grille 1.5 mm steel with foam
Rigging M8 points
Connectors
1x XLR input 1x XLR link 1x AC powercon input
Dimensions (HxWxD) 1052 x 250 x 260 mmWeight 18.5 kg
ASYMMETRICAL HORN
WEATHER RESISTANT
ACCESSORIES FOR EASY INSTALLATIONS
HIGH RESISTANT POLYUREA® PAINT
4x 6" ACTIVE FULL RANGE COLUMN SPEAKER SYSTEM
CARBON FIBER CONE
LIGHT NEODYMIUM COMPONENTSNd
MULTIPLE PRESETS AVAILABLE
REAR VIEWFRONT VIEWSIDE VIEW
CONNECTION PANEL DETAIL
BOTTOM VIEW
TOP VIEW
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Leve
l [dB
SPL]
110
50
4020 100 1 k 10k 20k
60
70
80
90
100
Frequency [Hz]
frequency response 1w/1m (flat preset) directivity index (di)
horizontal beamwidth (-6dB point) cad drawing scheme
vertical beamwidth (-6dB point)
Leve
l [dB
]
Cov
erag
e A
ngle
[Deg
.]C
over
age
Ang
le [D
eg.]
-5
50
50
-10
0
0
500
125
125
250
250
250125 1 k
500
500
2 k
1 k
1 k
4 k
2 k
2 k
4 k
4 k
8k
8k
8k
16k
16k
16k
0
100
100
5
150
150
10
200
200
15
250
250
20
300
300
360
360
Frequency [Hz]
Frequency [Hz]
Frequency [Hz]
260 mm
250 mm
1052
mm
4x 6" ACTIVE FULL RANGE COLUMN SPEAKER SYSTEM
vertical coverage
63 Hz31,5 Hz 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz 16 kHz -25
0
90
-90
-60
-30
0
30
60
-6,25
-12,5
-18,7
Level (dB)
horizontal coverage
63 Hz31,5 Hz 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz 16 kHz -25
0
90
-90
-60
-30
0
30
60
-6,25
-12,5
-18,7
Level (dB)
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accessories
asymmetrical horn
Good coverage of audiences often is a conflicting combination of:
*wide coverage for the closest audience (short throw) *narrow coverage for distant areas (long throw)
The asymmetrical dispersion horn coverage varies from "short throw" to "long throw" along the vertical axis (keeping a constant vertical directivity).
NC-JK46
GT-50HR
SP/CR70
ACR-M8
SC-15
HR-26
SP-46
Vertical-Positioned JK46A (Flown and aiming to the audience) We need wide coverage (100º) for the closest listeners and narrow coverage for the distant audience.
Directivity feature of (50º to 100º(H), 55º(V)) can be seen as if the horn itself had "two" horizontal directivities (audience coverage), which depend on the distance. For short distances the horn should be used with its "wide" dispersion (100º). For long distances the horn should be used with its "narrow" dispersion (50º).
4x 6" ACTIVE FULL RANGE COLUMN SPEAKER SYSTEM
VERTICAL COLUMN-MOUNT HR-26 + SC-15
VERTICAL TRUSS-MOUNT HR-26 + GT-50HR + SC-15
VERTICAL WALL-MOUNT SP-46
