Montarbo professional sound systems

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SPOT1500

SPOT1500


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1500 watts

Documents

SPOT1500_drawing.pdf
SPOT1500_owner's-manual.zip
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Two-way active bi-amplified speaker system

  • SPOT1500 represents the “light” version of the SPOT 2500T: there is no bass cabinet with it’s dedicated amplifier.

  • SPOT1500 is a high directivity, long throw compact system, 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. A 3 element system results in a 150° horizontal coverage, maintaining tonal coherence and interference-free horizontal wave-front summing.

  • The cabinet is built from birch plywood and is characterized by its stunning hi-tech, spartan styling. It is fitted with M10 threaded studs to allow for safe and simple suspension and features ergonomically designed handles which have been located in the correct, balanced position for handling by a single person. It also has a stand adapter.

  • The system is equipped with:
    - one 15” woofer, featuring a 4” voce coil and a powerful, shielded, neodymium magnet. The magnet is front-mounted, allowing for improved cooling under power-intensive conditions.
    - one HF driver with a 1.4” throat and 3” voice coil, featuring a neodymium magnet and titanium diaphragm, loaded by an high directivity (50° H x 40° V) wave-guide horn. The horn has a very low cut-off frequency, resulting in improved far-field intelligibility.

  • SPOT1500 is equipped with two class-D amplifiers (with switching power supplies) that are able to provide a total of 1500 Watts EIAJ (1000 W for the LF driver, 500 W for the HF) managed by the Montarbo DSP.

  • The Montarbo digital processor (56 bit, 180 MHz, 24 bit converters) takes care of the filtering, equalization, delay, limiter and diagnostic functions, while optimizing the system’s power and linearity.
    It utilizes an advanced algorithm for the real-time control of both the power output and temperature (both internal and external) of the amplifier, thus increasing the system’s overall reliability; 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, thus adapting the speaker’s acoustic response to the user’s personal taste. A dedicated software program, developed in our R&D laboratory, makes it possible to operate the speaker on a remote control basis by means of a Personal Computer and our LD24 USB interface. With a single LD24 USB interface it is possible to operate up to 10 speaker systems by remote control.
    The remote control allows:
    - programming and storage of custom presets in the PC;
    - adjustment of the frequency response by means of a 10 filter “fully parametric” equalizer;
    - adjustment of the delay and output level of each speaker system;
    - monitoring of the power amplifier’s condition (temperature, protection circuits, limiters and thermal alarms).
    An auxiliary output from the Internal DSP controller may be used to drive an external subwoofer, be it equipped with internal filters like those in the Montarbo product line, or not. The type of subwoofer used may be selected via the remote control.
    This control software makes this system extremely flexible.
    The possibility of changing the frequency response, generating personalized presets and then saving an unlimited number of them in the PC represents a major advantage for sound engineers when the system is being used as stage monitor: once a performer’s personal preset (e.g. for the drummer or for the lead vocalist) has been programmed, it may be saved for use at a subsequent event.
    In fixed installations, the ability to adjust the delay and equalizer make it possible to align the sound system’s phase and frequency response.

  • The control and connection panel is fitted with:
    - 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.

    Note: SPOT 1500 is not fitted with the link connector for the SPOT 2500T bass cabinet.

Applications:

It is perfect for live music, but its excellent vocal/speech intelligibility at long distance qualify it as a highly recommended option for conventions.

Specifications

Enclosures

2-way bass-reflex
Components

custom designed on Montarbo specifications
LF

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

HF

1 x compression driver (1.4” throat, 3” voice coil) with neodymium magnet titanium diaphragm
fitted to a high directivity (50° H x 40° V) wave guide horn
Frequency response 45 - 20.000 Hz
max SPL (peak) 135 dB
Electronic cross-over 750 Hz
Built-in amplifier 2 class D power units
LF output powe 1000 W
HF output power 500 W
Total Output Power 1500 W EIAJ
Built-in DSP Montarbo
Processing 56 bit/180 MHz
Conversion 24 bit
Managements 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 balanced XLR connectors for the input, link and DSP processed output for driving external subwoofer
RJ45 DATA connectors for the two RS485FD serial interfaces for the connection to a PC (Montarbo net)
PowerCon® connector for mains power supply
(input + link)
Volume control
Status Led indicators (signal, clipping, thermal warning protection)
Active preset LED indicators
Construction

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

Carrying handles
M10 threaded inserts
Speaker-stand adapter
Dimensions / Weight W 440 x H 775 x D 492 mm / 35 kg