Master Audio
Xcellence Series.Ver 1.1
Nov 09
9
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; and
LPF110- mean low pass filter at 110Hz; 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.
Dimensions: Height 56.7 cm, width 61 cm, depth 65 cm.
Fig.5. X-18W cabinet. External dimensions
