Master audio XCELLENCE Serie Manual De Usario página 40

Amate Electroacústica,s.l.
4. X-18W
The X-18W cabinet is ideal for bass reinforcement in general and specifically in
combination with models X-12C and X-15C. It includes 1500W amplification for the
woofer and digital signal control by DSP. The manufacturer presets (LPF90+,
LP110+, LPF130+, LPF90-, LPF110-, LPF130-) make it easy, flexible and user-
friendly.
The 18" neodymium woofer used, thanks to its exclusive magnetic design, combines
excellent bass frequency response, high performance and low distortion. These
features are mainly due to the presence of demodulation rings which drastically
reduce the inter-modulation and third order distortion and considerably improve the
transitory response. There is excellent heat dissipation due to the external positioning
of the magnet set. Without any doubt one of the finest bass transducers currently
available.
The result is a clean, high quality sound.
The upper surface incorporates a pole mount socket for a standard 35mm bar.
4.1. Technical description
The X-18W cabinet comes with DSP control, with direct radiation transducer and
acoustic bass reflex cabinet. As a bass reinforcement system, its frequency response
is 35Hz-130Hz (+/- 3dB) with a usable bandwidth between 30Hz-140Hz (-10dB,
preset LPF130).
It has 1500W continuous amplification, thermal protection, anti-short circuit protection
at the output, maximum power limiters for each channel, and protection against
overvoltage. The DSP includes 6 presets which can be selected either accessing the
cabinet's rear control panel or via the computer with RJ45 connection for the RS485
bus. The LPF90+ and LPF90- presets mean low pass filter at 90Hz; LPF110+ and
LPF110- mean low pass filter at 110Hz; LPF130+ and LPF130- mean low pass filter
at 130Hz.
By upping the low pass filter a greater 'boom' sensation can be achieved, but clarity is
lost. It is down to the user to decide on the most suitable preset.
The X-18W is connected using the XLR balanced connectors. Mains supply is
through PowerCon at 230V.
Built in birch plywood, which has a high resistance to vibrations and humidity.
Varnished finish and optional (by order) textured water-based acrylic resin black paint
which is totally ecological. The front face is protected by a 1.5 mm thick steel grille
with acoustically transparent grey cloth.
Height 56.7cm, width 61cm, depth 65cm.
Xcellence Series.Ver 1.0 Mar 09
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