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Beta Three EJ218 User Manual page 3

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J218
INTRODUCTION
3
J series
are mainly for the entertainment venues like rock bar, Disco bar, performance bar, night
club, touring performance and portable equalizing sound reinforcement.
J series
speaker adopt trapezia design, it is convenient to form a cluster, suitable for stage monitor, and reduce
the standing wave inside the cabinet. The well-chosen MDF with high intensity can absorb the exceptional sound
from the speaker cabinet s syntony.
convenient for the installation.
J series
are developed and produced by the combination of the latest computerized stimulation design
technology, the latest loudspeaker materials and manufacture technology. All transducers adopt the most
optimized magnetic circuit having high magnetic energy, low distortion and excellent ventilation. LF transducers
use nonlinear thickness long fabric paper cone with special painting cloth surround and high power sandwich
type voice coil. Symmetrical magnetic circuit was also adopted and all these ensure the linear moving when LF
works under high power. The HF transducers take titanium diaphragm treated by high temperature and
rectangle voice coil and linear phase design compression chamber. With the wide dispersion horn to get a wide
sound covering field and our new symmetrical protect circuit with adjustable delay, the sound and product
quality can be guaranteed.
FEATURE
Computer optimized analog design in order to get good response and phase feature.;
Two way sub-frequency, high sensitivity speaker;
Two 18 inch professional high effective woofer unit;
Mono amplifier promotes;
It is used for all kinds of rock-and roll bar, hall, club and all kinds of dynamic performance in entertainment for
reinforcement sound;
It is used for high quality music repeating, and can match
SPECIFICATION
Transducer
Frequency Response(-3dB)
Sensitivity(1W/1m)
SPL(1m)
Max.SPL(1m)
Power(RMS)
Power(Program)
Power(Peak)
Rated Impedance
DC Impedance
Crossover Point
THD
Input Connectors
Net Weight
Gross Weight
Dimensions (W D H)
Packing Dimensions(W D H)
J series
has standard frying construction and SPK socket input which is
3
J212,
1
.
J215 etc high power full range speaker.
35Hz-1.8kHz
567 786 1075mm
1202 898 702mm
.
.
.
LF: 18" 2
102dB
134dB
140dB
1600W
3200W
6400W
4
2.6
250Hz
3
NL4 2
85kg
90kg

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