Loudspeakers - Dynacord
Loudspeakers - Dynacord
Loudspeakers - Dynacord
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FX 20<br />
PLANAR WAVEGUIDE SUB<br />
To generate the maximum<br />
possible sound pressure, the FX 20<br />
subwoofer features a Planar<br />
Waveguide bass horn and a highpower<br />
EVX 180B 18“ woofer.<br />
It covers a bandwidth from 30 Hz<br />
to 150 Hz with a maximum sound<br />
pressure level of 132 dB / 1 m.<br />
Two of these Planar Waveguide<br />
subwoofers deliver up to 138 dB /<br />
1 m per side, creating an extremely<br />
dry and deep bass foundation for<br />
Xa 2 systems. Like the top, the<br />
18“ woofer is securely protected<br />
SYSTEM AMP<br />
XA 4000<br />
The Xa 4000 system amp is a two-way<br />
(Sub-Top) power amplifier that can<br />
either be positioned laterally – for<br />
shorter cable runs to the cabinets – or<br />
centrally in the rack. Only two rack<br />
units in height and weighing a mere<br />
8.25 kg, this Class H power amplifier<br />
is equipped with a switch-mode power<br />
supply of the latest generation. It outputs<br />
1,100 W in the Sub and 900 W<br />
in the Top channel – in each case into<br />
4 Ω. Up to three tops and three sub-<br />
against thermal overload by the<br />
Voice Coil Tracking Protection<br />
system, and even extremely high<br />
power peaks are transduced<br />
accurately and powerfully without<br />
compromising the dynamic range.<br />
The cabinet is made from multiply<br />
poplar plywood 15 mm thick covered<br />
by extremely hard-wearing<br />
needle-felt carpeting. Two FX 20<br />
subwoofers stacked one on top<br />
of the other reach a height of 180<br />
cm, creating the ideal plinth for<br />
an‚ overhead‘ stack of FX 12 tops.<br />
Again, the use of four-pole Speakon<br />
woofers, however, can be driven reliably<br />
and economically by a single amp. All<br />
the requisite signal processing including<br />
the equalization, LPN filter, low-cut filter<br />
and active crossover, with its crossover<br />
frequency of 140 Hz with 18 dB / octave<br />
in a modified Butterworth structure, is<br />
on board. From the front panel, the level<br />
of the Sub and Top channels can be set<br />
individually to allow optimization of the<br />
system to the geometry and acoustics of<br />
the room.<br />
FX 20<br />
cables obviates the risk of wiring<br />
errors when connecting up the<br />
system. The Sub signal supplied by<br />
the system power amplifier is on<br />
Pin 1+ / 1-, and the midrange / high<br />
frequency signal on pin 2+ / 2- is<br />
looped through to the tops.<br />
Four large rubber feet on the side<br />
and the same number on the bottom<br />
provide for safe stacking in a variety<br />
of configurations. No fewer than<br />
six handles and four heavy-duty<br />
castors on the rear facilitate safe<br />
transportation.<br />
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