Essential Install | Products
From Pro To The
Home With JBL
The 4429 is
designed to
reproduce the
dynamic richness
and detail of
the original
performances at all
listening levels
UK AV distributor Karma-AV, has launched
details of two new JBL studio monitors that
promise to bring professional-grade audio
to the home. The JBL 4367 and 4229 studio
monitors both feature a brand new acoustic
system with classic JBL design.
The JBL 4367 incorporates drivers and
technologies derived from the company’s
M2 Master Reference Monitor. It utilises
JBL’s patented D2 compression driver
technology featuring the D2430K dualdiaphragm/dual-voice-coil driver, which employs two annular (ring-shaped) diaphragms and two voice coils to deliver
extended high frequency response to 40kHz with low distortion even at high volume levels. The annular diaphragms
are supposedly not subject to the break-up modes of a conventional dome surface and the use of two voice coils yields
a dramatic increase in output and power handling.
The D2 driver operates into JBL’s newly developed High-Definition Imaging (HDI) waveguide, which provides a neutral
frequency response both on and off-axis in vertical and horizontal planes, together with a frequency blend with the woofer.
JBL’s 2216Nd 380mm Differential Drive cast aluminium frame woofer from the M2 is modified with a new spider and
surround treatment. It employs a pure pulp cone material, dual 75mm voice coils and dual neodymium motor structures.
The JBL 4367 features front-panel high frequency and ultra-high frequency trim adjustments for the fine-tuning of
audio response. Its heavy-duty dual binding posts allow bi-amping or bi-wiring while its 94dB sensitivity and six-ohm
impedance enable the 4367 to be driven to volume levels by up to 300W maximum amplifier power.
The 4367’s bass-reflex enclosure includes dual front-firing ports and is internally braced at critical points to ensure
maximum clarity and definition.
The JBL 4429 system is an updated version of the company’s 4425 studio monitor with some improvements added
including the addition of a 19mm titanium diaphragm, ultra-high frequency compression driver (138Nd) and an improved
50mm titanium diaphragm high frequency compression driver (175Nd-3) in a one-piece SonoGlass horn system.
A new crossover network provides a smooth handover with a 300mm JBL pure-pulp cone woofer (1200FE-8)
augmented by twin reflex ports in an improved, braced cabinet for quick, tight bass, which complements a natural, wellfocused midrange and clear, distinct highs.
More information: karma av +44 (0)1423 358846, www.karma-av.co.uk
Make Light Work Of It With Russound
The XZone70V
Streaming Audio
Amplifier and
accessories have
been created
specifically for the
light commercial
sector
Connected Distribution, the Russound UK distributor, is introducing the XZone70V
Streaming Audio Amplifier to give installers a versatile product for building business
in the light commercial sector.
The first Russound 70v model to be launched, the XZone70V Streaming Audio
Amplifier is a high resolution digital media streaming source that enables very long
run and multiple speaker installations for commercial environments. Incorporating
the company’s XStream technology, the XZone70V provides streaming audio content
from the cloud via vTuner, TuneIn and Spotify, from a local network and Apple AirPlay
devices. Its 70v/100v amplifier provides up to 300W of power in a single 1U chassis.
Additional sources can be connected via a rear mounted USB socket for use with a
flash drive or external hard drive and a 3.5mm input jack gives the flexibility to add any
other local source to the system.
Useful for commercial installations is the integrated microphone input that automatically
senses a signal and pauses the audio stream for paging through the system. Condenser microphone support is easily
accessed with a sliding switch on the rear panel, in addition to a mic gain control for adjustment of the audio level and
a front panel mic volume level that gives users access to increase speech volume as the environment dictates.
Overcoming the limitations of 70v line systems, namely the potential for saturation of even the best speaker
transformers and hence distortion when running low frequencies through them, the XZone70 incorporates a dedicated
high pass filter to block these signals. When used in the optional 4-ohm mode, with traditional loudspeakers, the
high pass filter is switched out of the circuit to permit the full frequency range to reach the speakers. Russound has
also produced a number of dedicated 70v accessories for use with the XZone70V, including the all-weather AW70V6
speakers and a 50W 70V volume control, which can be used at each speaker location for individual adjustment of level.
More Information: Connected Distribution + 44 (0) 1242 511133 www.connecteddistribution.com
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