Master audio Xcellence Series User manual
XCELLENCE SERIES
X-15LT - X-18W Systems
Pol. Ind. Norte - Perpinyà, 25
08226 TERRASSA (Barcelona-SPAIN)
All rights reserved master-audio.com
Feb 10
User’s manual
Master Audio
Xcellence Series XLT.Ver 1.0 Feb 10 2
ENGLISH
Safety Instructions
1. All safety instructions must be read before using this device.
2. The exclamation mark in the triangle indicates internal components which if
replaced can affect safety.
3. The lightning symbol within the triangle indicates the presence of dangerous
uninsulated voltages.
4. This device must not be exposed to rain or humidity. It must not be used for
example near swimming pools, fountains or any other place where it might be
affected by liquids.
5. Only clean the device with a dry cloth.
6. Do not situate the equipment where its ventilation system might be interfered with.
7. Do not install the device near heat sources such as radiators, heaters or other
heat-emitting elements.
8. The equipment must be repaired by qualified technical service personnel when:
A. The mains supply cable is damaged, or
B. Any object or liquid has damaged the device; or
C. The equipment does not function normally or correctly; or
D. The equipment has been exposed to the rain; or
E. The chassis is damaged
9. Disconnect the device in the case of electric storms or during long periods of
disuse.
10. Never hang the equipment by its handle.
11. Only use manufacturer recommended accessories.
CAUTION
RISK OF ELECTRIC SHOCK
DON’T OPEN
To reduce the risk of fire or electric shock do
not expose this equipment to rain or moisture
WARNING:
Master Audio
Xcellence Series XLT.Ver 1.0 Feb 10 3
1. INTRODUCTION
1.1. General product information
Master Audio thank you for the trust placed in our Xcellence loudspeaker system.
The XLT models combine the benefits of their high quality sound transducers, the
convenience of a self-powered system and the flexibility of the DSP (digital system
processing) for cabinet control.
More than 35 years’ experience in amplifier and acoustic cabinet design using the
highest technology and components come together to give you a product ideal for a
multitude of applications, from sound back-up systems for theatres, clubs or TV
channels to even corporative events or concert halls.
We suggest you read the following information with attention, assured that it will be of
maximum use in helping you to achieve the best results and optimum performance.
1.2. Features and appearance
X-15LT
- Self-powered cabinet.
- 1000W amplifier for mid range.
- 500W amplifier for high range.
- DSP with 48 bit bus and 28 bit filter coefficients.
- DSP Controls (parametrics, delay, volume and limiters).
- RJ45 output for control via computer.
- Overvoltage protection (>250V-400V).
- One 15” woofer in neodymium (4” voice coil).
- One 3” voice coil diameter, titanium diaphragm compression driver.
- 60º x 50º rotative horn.
- Birch plywood construction.
- Black textured paint finish: totally ecological.
- Frontal steel grille with acoustically transparent grey cloth.
X-18W Subwoofer
- Self-powered cabinet.
- 1500W amplifier for bass range.
- DSP with 48 bit bus and 28 bit filter coefficients.
- DSP Controls (parametrics, delay, volume and limiters).
- RJ45 output for control via computer.
- Overvoltage protection (>250V-400V).
- One 18” woofer in neodymium, 4” voice coil and demodulation rings to reduce
distortion and the transitory response.
- Birch plywood construction.
- Black textured paint finish: totally ecological.
- Frontal steel grille with acoustically transparent grey cloth.
Master Audio
Xcellence Series XLT.Ver 1.0 Feb 10 4
2. XLT Systems. Features
The X15LT cabinet is ideal for a multitude of applications. It includes 1000W bi-
amplification for the mid range woofer, 500W for the high range compression driver
and digital signal control by DSP. The manufacturer presets FACTORY, NEARFIELD,
LOUDNESS, SPEECH and XOVER make it easy, flexible and user-friendly.
The result is a clean, high quality sound whether for nearfield listening or at full power
in larger sites.
The lower surface incorporates a pole mount socket for a standard 35mm tripod and
the top surface incorporates a M10 thread.
2.1. Technical description
The XLT cabinet comes with DSP control, full range sound delivery thanks to its
direct radiation transducer and acoustic bass reflex cabinet. As a full range system,
its response is 50-18kHz (+/- 3dB) with a usable bandwidth between 42Hz-19kHz (-
10dB).
It has 1500W continuous amplification (1000W + 500W), thermal protection, anti-
short circuit protection at the output, maximum power limiters for each channel, and
protection against overvoltage. The DSP includes 5 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 FACTORY preset gives a maximum flat response
in free field conditions; NEARFIELD has -3dB in mid range for medium volume, close
range listening; LOUDNESS has -6dB in mid range for medium volume with more mid
range correction; SPEECH has -9dB bass, -6dB high for voice use with a
microphone; XOVER has a high pass filter at 100Hz for bass frequency back up
(subwoofer).
The XLT cabinets are connected using the XLR balanced connector. Mains supply is
through PowerCon at 230V.
Built in birch plywood, which has a high resistance to vibrations and humidity.
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.
2.2. Presets
The XLT includes five manufacturer presets for different types of application. The
DSP system can also store up to 16 other presets, depending on user requirements
Master Audio
Xcellence Series XLT.Ver 1.0 Feb 10 5
P1-FACTORY
Flat response
(freefield)
P2-NEARFIELD
-3dB Mid
(nearfield)
P3-LOUDNESS
-6dB Mid
(nearfield, deeper
mid range
correction)
P4-SPEECH
-9dB Low
-6dB High
(speech)
Master Audio
Xcellence Series XLT.Ver 1.0 Feb 10 6
P5-XOVER
HFP 100Hz
(with subwoofer)
Fig.1. X15LT PRESET options
2.3. Connection Panel
Each unit contains a rear panel comprising:
a) RJ45 INPUT: Computer connection input.
b) RJ45 LINK: Computer signal link.
c) INPUT SIGNAL: XLR balanced signal connector.
1= Shield 2= Live 3= Return
d) LINK INPUT SIGNAL: XLR connector for parallel connection of various cabinets
with the same input signal.
1= Shield 2= Live 3= Return
e) AC INPUT: Mains supply via PowerCon.
f) AC LINK: Power link for PowerCon connector to feed other units in parallel (up to a
maximum of 3 extra units).
g) AC INDICATORS (Power supply)
- ON: lights up with correct AC signal.
- STAND BY: lights up during switch on sequence.
- OVERVOLTAGE PROTECTION: lights up if the AC input signal exceeds
250VAC. The system shuts down automatically and cannot be connected
until the AC level is correct. This protects against erroneous connection to
400V or neutral voltage drop.
Master Audio
Xcellence Series XLT.Ver 1.0 Feb 10 7
C
A D
B
E
G
F
Fig.2. X-15LT connection panel
Always use mains power cable supplied by manufacturer.
Never connect the XLT to an unearthed mains supply or by using an
unearthed mains cable.
Master Audio
Xcellence Series XLT.Ver 1.0 Feb 10 8
3. Dimensions:
X-15LT has height 75 cm, width 47 cm, depth 50 cm
Fig.3. X-15LT cabinet. External dimensions
As a low frequency reinforcement, we offer the X-18W subwoofer which is totally
compatible with X-15LT top cabinet.
4. X-18W Subwoofer
The X-18W cabinet is ideal for bass reinforcement in general and specifically in
combination with the model X-15LT. 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.
Master Audio
Xcellence Series XLT.Ver 1.0 Feb 10 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; 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. 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.4. X-18W cabinet. External dimensions
Master Audio
Xcellence Series XLT.Ver 1.0 Feb 10 10
4.2. Presets
The X-18W includes six manufacturer presets for different types of application. The
DSP system can also store up to 16 other presets, depending on user requirements.
ATTENTION: When the X-18W is used in conjunction with the X-15LT in XOVER
preset, the X-18W must operate in positive polarity (LPF90+, LP110+, LPF130+).
When the X-18W is used in conjunction with the X-15LT in FACTORY, NEARFIELD,
LOUDNESS or SPEECH presets, the X-18W must operate in negative polarity
(LPF90-, LP110-, LPF130-).
P1-LPF90+
P4-LPF90-
Low pass filter
at 90Hz
P2-LPF110+
P5-LPF110-
Low pass filter
at 110Hz
P3-LPF130+
P6-LPF130-
Low pass filter
at 130Hz
Fig.5. X-18W PRESET options
This manual suits for next models
2
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