Speaker System

Speaker System
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Availability: Pre-Order
Model: SPOT2500T
Manufacturer: Montarbo
Average Rating: Not Rated

SPOT2500T-Quasi 3-Way Active Tri-amplified Speaker System


SPOT2500T is 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 is equipped with class D amplifiers 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 or not. 
The presets can be modified by means of the Montarbo proprietary software program RAConLS™ 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.


• 3 class-D amplifiers (with switching-mode power supplies) that can supply a total of 2500 Watts EIAJ (1000 + 1000 W for the LF drivers, 500 W for the HF).

• 140 dB max SPL.

• Two 15” woofers (one of which in the passive bass module) with 
4” voice coil, featuring a shielded front-mounted neodymium magnet.

• 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.

• The geometry of the cabinet allows for easy construction of clusters. 
A 3-system cluster results in a 150° horizontal coverage.

• Birch plywood cabinet, finished with anti-abrasion paint.

• Threaded studs (M10) for safe and simple suspension; adapter for coupling bar (SM3, optional); 2 ergonomically designed handles.



• Coverage of large areas.

• Stage-monitoring applications (in-fill system).

• “In-house” system in theatres and in live-performances venues.




‘quasi 3-way’ system composed of:
‘full range’ cabiner: two-way bass reflex
‘bass cabinet’: bass-reflex


custom designed on Montarbo specifications

Full range cabinet LF

1 x 15” woofer (4” voice coil) with shielded, neodyumium magnet assembly, front-mounted for optimal cooling 


1 x 1.4” throat, 3” voice coil driver with neodymium magnet and titanium diaphragm fitted to a high directivity
(50° H x 40° V) wave guide horn

Bass cabinet

1 x 15” woofer (4” voice coil) with shielded, neodyumium magnet assembly, front mounted for optimal coolings

Frequency response 40 - 20.000 Hz
max. SPL (peak) 140 dB
Electronic cross-over 750 Hz

3 class D power units built-in the full-range cabinet

LF output power 2 x 1000 W
HF output power 500 W
Total Output Power  2500 W EIAJ 
DSP Montarbo - built-in the full-range cabinet
Processing 56 bit/180 MHz
Conversion 24 bit
Management functions

Filtering, EQ, delay, limiting, diagnostic (energy control, external and amp. temperature control)      
5 presets, 1 of which  is custom-programmable
Remote control by PC (of up to 10 systems)

Connections and controls

Full range cabinet (SPOT 2500T) 
4-pole Speakon® for the bass cabinet (SPOT15B)
balanced XLR connectors for input and link and DSP  processed output for driving external sub  
RJ45 DATA connectors for the two RS485FD serial interfaces 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 (SPOT15B)
4-pole Speakon® for the full-range cabinet (SPOT2500T)

Construction Birch plywood, high-impact, chip-resistant paint, steel protection grill with internal foam protection

Carrying  handles  
M10 threaded inserts (on the full range cabinet)
mounting adapter for the dedicated speaker stand 


Full range cabinet (SPOT 2500T) 
W 440 x H 775 x D 492 mm  
Bass cabinet (SPOT15B) 
W 440 x H 775 x D 492 mm


Full range cabinet (SPOT 2500T) 
35.8 kg 
Bass cabinet (SPOT15B) 
27.7 kg

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Speaker System
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Speaker System
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Speaker System
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