X-Treme Audio Classic Line User Manual
CLASSIC LINE
User’s manual
1/7
CLASSIC LINE
CLASSIC LINE
User’s manual
CONTENTS
1. Safety instructions
2. General information
3. Instructions
4. Stacking or flying?
5. Stacking Guidelines
6. Subwoofers
7. General Guidelines for the use of subwoofers
8. Amplification
9. Connectors
10. Cable length
11. System configurations
1. Safety instructions
It is very important that loudspeakers systems are used in a safe
manner. Professional loudspeakers are capable of producing extremely high sound levels and should be used with care. Hearing
loss is cumulative and can result from levels above 90 dB if people
are exposed for a long period. Never stand close to loudspeakers driven at high level. For stacking, ensure that the floor or stage
is level and solid. Do not stack speakers too high outdoors where
winds could topple the stack.
Fig. 1 Classic Line systems, flying configuration
Flying systems should only be assembled by a trained and experienced crew, working in association with professional riggers. All
Classic Line custers must be hung from secure and appropriately
load rated rigging points.
2. General information
The X-Treme Classic Line loudspeaker systems are highly efficient
touring products suitable for a wide variety of medium and large
scale live sound applications.
XTH is a highly efficient two-way (MF-HF) speaker with a 12” horn
loaded midrange loudspeaker and 2” compression HF driver. The
coaxial structure of the two medium-high sections allows an extraordinary degree of freedom from phase distortions and also controls the polar diagram perfectly. The compact design and angular
response free from obstructive side lobes allow the arrangement
of both simple as well as complex horizontal and vertical clusters.
2/7
User’s manual
Fig. 2 XTH loudspeaker system
Originally conceived for live concerts applications, the XTH element
can equally well be used wherever the best reproduction of voice,
songs and solo musical instruments is required.
The cabinet is made of 0.6” (15 mm) thick birch wood able to withstand any kind of mechanical stress without vibrating; it is designed
to make cluster installations starting from single modules easier in accordance with the sound dispersion angles on the horizontal plane.
Being the XTH system conceived to reproduce the frequency range
between 150 and 18k Hz, we recommend use of woofer-type
acoustic speaker, such as the XTL, to allow full extension of the
frequency response on low notes.
Fig. 4 XTS subwoofer
The XTS is equipped with high dynamics 18” woofer mounted in
direct radiation in order to reproduce the frequency range between
30 and 90 Hz. Cabinet dimensions are the same as those of other
loudspeaker system of the series, so as to facilitate the stack use.
Fig. 3 XTL woofer
Purposely designed to reproduce the first octave of the band, the
XTL is the natural complementary system of the XTH loudspeakers. Its overall dimensions are designed to make the arrangement
of array set up with the other speakers of the series easier. The
XTL is fitted with 18” woofer with high standard dynamics able to
support acoustic power as high as 1700 Watt. The XTL cabinet is
made of plywood with very high structural density and rigidity. The
development and the section of the loading were designed according to loudspeaker parameters in order to guarantee the best total
efficiency and extension response. Finally, in order to complete the
series with a subwoofer able to provide reinforcement on the deeper
low frequencies, the XTS model has been developed.
Fig. 5 XTHPS33 double subwoofer
The XTHPS33 is a double subwoofer which combines an 18” in
reflex configuration and a 15” in pass band system. The 18” is dedicated to the lowest frequency range, while the 15” works better in
higher octaves. In this way, the first octaves frequency extension
(20÷40 Hz) is coupled with the “punch” effect typical of the second
and third octaves (80÷100 Hz), thanks to the pass-band configuration. All is made to increase efficiency, to reduce distortion, to get
a good “punch” effect without renouncing the range of frequency
response.
The correct use is with electronic crossover set at 150 Hz with 24
dB/oct slope. The best performance is with an amplifier able to deliver power into 4 ohm with high current capability.
The subwoofer height corresponds exactly to two XTH and XTL
stacked speakers.
3/7
Loading...