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quasi 3-way active tri-amplified
DATASHEET
2500 Watts
SPOT 2500T is a ‘quasi 3-way’ active tri-amplified speaker system,
composed of an active full-range cabinet and a passive bass cabinet.
It is a high directivity, long throw compact systems, characterized by
extremely high intelligibility, even at long distances, making it the perfect
choice for live applications. This system was designed to simplify the task
of assembling clusters by simply placing multiple enclosures side-by-side
when wider horizontal dispersion is required.
SPOT 2500T incorporates all the electronics needed to process and
power the whole system. It is equipped with class D amplifiers
(with switching-mode power supplies) controlled by the Montarbo DSP
loudspeaker processor (56 bit, 180 MHz, 24 bit converters) which
provides filtering, equalization, delay, limiting and diagnostic functions.
This DSP utilizes an advanced algorithm for the real time control of both
the power output and the temperature (both internal and external) of
the amplifier; it also includes a dedicated standby function which results
in reduced power consumption when no signal is present.
5 presets are available, one of which may be customized by the user and
loaded into the DSP, thus adapting the speaker’s acoustic response to
the user’s personal taste.
The Internal DSP controller also provides an auxiliary output that may
be used to drive an external subwoofer, be it equipped with internal
filters like those in the Montarbo product line, or not.
The presets can be modified by means of the Montarbo proprietary
software program RAConLSTM with the LD2.4 USB interface (optional
device). The remote control allows: programming and storage of one
preset in the DSP and the creation of an unlimited library of personalized
settings in the PC; adjustment of the frequency response by means of a
10 filter “fully parametric” equalizer; adjustment of the delay time and
of the output level of each speaker system; monitoring of the power
amplifier’s status (temperature, protection circuits, limiters and thermal
alarms); selection of the type of subwoofer used.
FEATURES
• The geometry of the cabinet allows for easy construction of clusters
• SPOT 2500T is a ‘quasi 3-way’ active tri-amplified speaker system,
A 3-system cluster results in a 150° horizontal coverage.
composed of an active full-range cabinet and a passive bass cabinet.
• Birch plywood cabinet, finished with anti-abrasion paint.
• 3 class-D amplifiers (with switching-mode power supplies) that can
• Threaded studs (M10) for safe and simple suspension; adapter for
supply a total of 2500 Watts EIAJ (1000 + 1000 W for the LF drivers,
coupling bar (SM3, optional); 2 ergonomically designed handles.
500 W for the HF).
• 140 dB max SPL.
APPLICATIONS
• Two 15” woofers (one of which in the passive bass module) with 4” • SPOT 2500T performs at extraordinarily high levels whenever voice coil, featuring a shielded front-mounted neodymium magnet.
especially outstanding dynamics are required.
• HF driver with a 1.4” throat and a 3” voice coil, featuring a
neodymium magnet and titanium diaphragm.
• High directivity (50° H x 40° V) wave-guide horn.
• Montarbo 56 bit DSP, 180 MHz, 24 bit converters.
• Dedicated standby function.
• Processed auxiliary output allows to drive an external subwoofer.
• 5 presets one of which may be customized and loaded into the DSP.
• Presets remote control and customization by means of the proprietary
software program RAConLS™ and the optional LD2.4 USB interface.
• With a single LD2.4 USB interface it is possible to operate up to 10 speaker systems of the SPOT, WIDE and FULL series.
• Coverage of large areas.
• Stage-monitoring applications (in-fill system).
• ‘Resident’ system in theatres and in live-performances venues.
ACCESSORIES
• LD2.4 USB interface supplied with Montarbo proprietary software program RAConLSTM.
• CV-SPOT protection cover.
• SM3 dedicated coupling bar (optional accessory).
quasi 3-way active tri-amplified
DATASHEET
2500 Watts
SYSTEM’S architectURE
SPOT 2500T is a ‘quasi 3-way’ active tri-amplified speaker system,
3
composed of an active full-range cabinet and a passive bass cabinet;
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4
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the system is fitted with two 15” woofers, one of which is enclosed in
the passive bass module. Both feature a 4” voce coil and a powerful,
shielded, neodymium magnet. The magnet is front mounted, allowing
for improved cooling under power-intensive conditions.
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High frequencies are reproduced by one HF driver with a 1.4” throat
and 3” voice coil, featuring a neodymium magnet and titanium
diaphragm, loaded by a high directivity (50°H x 40°V) wave-guide
horn. The possibility to use a very low cut-off frequency (750 Hz)
results in improved far-field intelligibility. This system was designed
to simplify the task of assembling clusters by simply placing multiple
enclosures side-by-side when wider horizontal dispersion is required.
A 3-system cluster results in a 150° horizontal coverage, maintaining
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tonal coherence and interference-free horizontal wave-front summing.
SPOT 2500T full range cabinet incorporates all the electronics needed
to process and power the whole system. It includes three class-D amplifiers (with switching-mode power supplies) that can supply a total of
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2500 Watts EIAJ (1000 + 1000 W for the LF drivers, 500 W for the HF)
managed by the Montarbo DSP. The simple interconnection of the
two modules by means of a single Speakon® cable (supplied with the
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system) results in a ready set-up system, featuring high performance
and an extended frequency response, from 40 Hz to 20 KHz.
The maximum sound pressure of 140 dB SPL and power (2500 W)
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available are extremely high, providing no-compromise results when
large-area coverage is required.
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The full-range active cabinet’s controls and connections panel is fitted with:
- Speakon® socket for the connection of the SPOT15B bass cabinet (1).
- Balanced, line level INPUT (2), it may be fed by balanced or
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unbalanced sources and must be connected to the mixer output.
It is a 3-pin female XLR connector
- Input LINK connector (3). It is wired in parallel to the input connector and it makes possible to send the input signal to other equipment
(usually to other self-powered speaker systems).
- SUB OUT socket (4) for driving an external active sub-woofer.
By selecting the suitable preset the internal DSP may be configured
to drive a subwoofer with or without an internal crossover filter.
The passive bass cabinet controls and connections panel is fitted with:
In the first case the output is a wide-band signal, in the second case
- Speakon® socket for the connection to the full-range cabinet (11).
the output is band-limited and suitable for most active sub-woofers.
Characterized by their stunning hi-tech, spartan styling, the cabinets
It is a balanced 3-pin male XLR connector.
of both elements are built from birch plywood and finished with a
- Master volume control (5) that adjusts the system’s volume (of both
special paint providing increased protection and resistance to scratches
full-range and bass cabinets).
and abrasion, even with intensive use. They are fitted with steel
- DSP section (6) includes: 4 status Led indicators; 5 active Preset Led
protection grilles with internal foam protection and ergonomically
indicators; UP and DOWN pushbuttons allow for preset selection;
designed handles, which have been located in the correct, balanced
‘Sub 1’ and ‘Sub 2’ Leds that indicate that the SUB OUT output is active
position to ensure convenient handling. The cabinets also feature M10
and what type of sub-woofer drive signal has been selected
threaded studs for safe and simple suspension and an adapter for the
- RJ45 sockets of the two DATA ports (7) for connection to the
SM3 dedicated coupling bar (optional accessory).
Montarbo USBNet control network: a Montarbo LD 2.4 USBNet inter-
Dimensions of both cabinets are 440mm wide x 775mm high x 492 mm
face and/or another active speaker of the FULL, SPOT and WIDE series.
deep. Weight of the full-range cabinet is 35.8 kg. Weight of the bass
- Mains supply inlet socket with type A PowerCon® (blue) (8) connec-
cabinet is 27.7 kg.
tor which guarantees a reliable, vibration-proof contact.
- Type B (gray) PowerCon® connector (9) allows to link other devices to
the mains power.
- Mains ON/OFF switch (10).
quasi 3-way active tri-amplified
DATASHEET
2500 Watts
TECHNICAL SPECIFICATIONS
SPOT2500T Frequency Response:
RED: PRESET1 - BLUE: PRESET2 - MAGENTA: PRESET3 - GREEN: PRESET4
+10
+7.5
+5
+2.5
+0
d
B
-2.5
-5
S
P
L -7.5
-10
-12.5
-15
-17.5
-20
30
50
100
200
500
1K
Hz
2K
5K
10K
20K
Dimensions in millimeters
440
492
225
130
204
170
775
562
207
Same dimensions for full-range cabinet and bass cabinet
Kg
SPOT 2500T full-range cabinet = 35,8Kg
SPOT 2500T bass cabinet = 27,7Kg
492
Enclosure Frequency response Sensitivity SPL max. Total Power Full range cabinet: 2-way bass reflex; Bass cabinet: bass-reflex
40 - 20.000 Hz
104 dB SPL @ 1W/1m
140 dB
2500 W EIAJ
• Components
full-range cabinet LF HF
bass cabinet
Custom designed on Montarbo specifications
15” woofer (4” voice coil) with shielded, neodymium magnet
assembly, front-mounted
1.4” throat, 3” voice coil driver with neodymium magnet and titanium diaphragm high directivity (50° H x 40° V) wave guide horn
15” woofer (4” voice coil) with shielded, neodymium magnet
assembly, front-mounted
• Electronic cross-over
750 Hz
• Built-in amplifier
Total Output Power
LF
HF
Input sensitivity
3 class D power units
2500 W EIAJ 2 x 1000 W 500 W
0 dBu (775mV)
• Built-in DSP
Processing
Conversion
ADC
DAC
Management function
Montarbo
56 bit/180 MHz
24 bit
112 dB
113dB
Filtering, EQ, delay, limiting, diagnostic
5 presets, 1 of which is custom-programmable
Remote control by PC by means of LD2.4 USB interface
(optional device)
• Connections and controls
Full range cabinet
4-pole Speakon® for the bass cabinet
Balanced XLR connectors for input, link and processed output for driving external sub
RJ45 DATA connectors for the connection to a PC (Montarbo net)
PowerCon® connector for mains power (input + link)
Volume control
Status Led indicators (signal, clipping, thermal warning, protection)
Active preset LED indicators
Bass cabinet
4-pole Speakon® for the full-range cabinet
PHYSICAL SPECIFICATIONS
• Construction
Birch plywood, anti-abrasion paint
Steel protection grilles with internal foam
• Features
threaded studs (M10) for safe and simple suspension
Adapters for SM3 coupling bar; side transport handles
• Dimensions / Weight
Full range cabinet W 440 x H 775 x D 492 mm / 35.8 kg
Bass cabinet W 440 x H 775 x D 492 mm / 27.7 kg
USB INTERFACE
This compact, USB-powered interface allows
TECHNICAL SPECIFICATIONS
to control and monitor up to 10 systems,
• Dimensions
W 73 x H 45 x D 22 mm
• Interfaces
1 x USB-B
1 x RJ45
• Cable length
100 m (CAT5)
using a single USB port of the controlling
computer. Data connection is provided by
a single RJ45 connector - a single CAT5
cable is run up to 100 m to the first
system and further systems are connected
in series. The network connection between the LD2.4 and the systems
is through a standard RS485FD physical interface using Montarbo’s
proprietary protocol.
• Maximum network size 10 SPOT, WIDE and FULL speaker system, in any combination.
LD2.4 is supplied with one USB type AB cable and one CD with RAConLS software
quasi 3-way active tri-amplified
DATASHEET
2500 Watts
CONFIGURATIONS
The full-range SPOT2500T speakers may be installed in various ways, and the internal DSP presets allow to optimize their performances
in the various configurations.
- They may be installed over of the SPOT15B bass cabinet, using the SM3 dedicated coupling bar (optional accessory) fitted in the built-in
adapters: POLE MOUNTING configuration.
- They may be placed on stage ground or stacked over the SPOT15B bass cabinet: STACKED configuration.
- They may be stacked upside-down over the SPOT15B bass cabinet, thus creating a dipole configuration that will result in increased sound
pressure at low frequencies: DIPOLE configuration.
- They may be placed side-by-side to create a ‘cluster’ of two or more speakers, thus extending the horizontal dispersion without creating
wave-front interferences: CLUSTER configuration.
For each one of these configurations, illustrated in the following figures, a dedicated factory preset is provided in the internal DSP.
50°
POLE MOUNTING
50°
50°
50°
50°
50°
STACKED
DIPOLE
150°
CLUSTER
The contents of this publication are ©2009 by Elettronica Montarbo srl. Data, text and pictorial material may not be reproduced in any manner without prior written permission of Elettronica Montarbo srl.
All rights reserved. The information contained in this brochure has been carefully drawn up and checked, however no responsibilities will be assumed for any inexactitude. Technical data and appearance of products are subject to change without prior notice.
The trademarks Neutrik Speakon®, Combo® and Power Con® are property of Neutrik.
Elettronica Montarbo srl • 40057 Cadriano Bologna (Italy) •
+39 051 766437 • Fax +39 051 765226 • [email protected] • www.montarbo.com