Master Audio
Xcellence Line Array Series 208.Ver 1.2
Sep 12
23
4. X-218W SUBWOOFER
The X-218W cabinet is ideal for bass reinforcement. It includes 2400W amplification
for the woofers and digital signal control by DSP. The manufacturer presets (LPF90,
LPF90+3, LPF110, 3, LPF80, LPF80+3, CARDIOID) make it easy, flexible
and user-friendly.
The 18” neodymium woofers used, thanks to their exclusive magnetic design,
combine 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.
4.1. Technical description
The X-218W cabinet comes with DSP control, with direct radiation bass reflex
acoustic cabinet. As a bass reinforcement system, its usable bandwidth is 30Hz-
100Hz (-10dB).
It has 2400W continuous amplification, thermal protection, anti-short circuit protection
at the output, maximum power limiter, and protection against overvoltage. The DSP
includes some presets which can be selected either accessing the cabinet’s rear
control panel or via the computer with Ethernet connection. The LPF90 preset means
low pass filter at 90Hz; LPF90+3 means low pass filter at 90Hz with +3dB boost at
42Hz; LPF110 means low pass filter at 110Hz, 3 means low pass filter at
110Hz with +3dB boost at 42Hz, LPF80 preset means low pass filter at 80Hz;
LPF80+3 means low pass filter at 80Hz with +3dB boost at 42Hz and CARDIOID
means cardioid polar pattern when used in combination with two other X-218W
subwoofers. The X-218W 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. High
resistance weatherproof bi-component paint. The front face is protected by two 1.5
mm thick steel grille with acoustically transparent grey cloth.
Fig.14.
X-218W cabinet. External dimensions
