Ascolto LH2425

Description:

The digitally controlled line arrays Ascolto® are equipped with high-quality 2,5” neodymium loudspeakers, capable to spread perfectly voice as well as sound instruments. They can handle higher power applications, delivering great tone at any volume levels. Each Ascolto® digital line array contains a set of custom-designed, fully-programmable 135-MHz, 48-bit DSPs where high precision 76-bit accumulators ensure the bit resolution for a total quality in digital audio processing such as beam filtering and audio equalization.
The Ascolto LH2425 is unique for its acoustic directivity, extremely selective and capable of reaching deep space. The Ascolto LH2425 is particularly suitable to ensure an extended coverage in large environments, where it needs simultaneously a very incisive beam and a bright tone.

Ascolto LH2425

enhances the quality of the sound;

improves environment with acoustically difficult characteristics;

focuses the sound energy directly to the public, minimizing the effects of the sound
reflections of the ceiling and the side walls;

fulfills all aesthetic and architectural requirements;

distributes capably audio in cathedrals, churches, mosques, theaters, auditoriums, airports,
railway stations and in general everywhere it is necessary acoustic precision and reliability.

The digitally controlled line arrays Ascolto® are equipped with high-quality neodymium loudspeakers, capable to spread perfectly voice as well as sound instruments. They can handle higher power applications, delivering great tone at any volume levels. Each Ascolto® digital line array contains a set of custom-designed, fully-programmable 135-MHz, 48-bit DSPs where high precision 76-bit accumulators ensure the bit resolution for a total quality in digital audio processing such as beam filtering and audio equalization.

The Ascolto LH2425 possesses the innovative Anti Reverberation System ARS®, capable of increasing the voice intelligibility in reverberant environments. ARS conveys uniformly acoustic energy on the lower part of the audio beam and reduce drastically the audio emission upwards, attenuating significantly the acoustic reflections related to ceilings.

AVE Line Array User Control® is a sophisticated software application that uses a complex proprietary algorithm to calculate accurately SPL distribution of Ascolto® Digital Line Arrays from their EASE® models. It allows the user to select the appropriate dispersion pattern and transfer aiming and filtering parameters to the digital line array through the dedicated network.

The AVE IRC Infrared Remote Control lets you control the configuration settings even if a host computer is not available.

The LH2425 is optionally available with Dante card. Thus the LH2425 can be integrated in an existing speaker system or in a Dante network.

 

Data sheet:

Acoustic Specifications

Frequency Bandwidth 120 Hz – 20 kHz (±3 dB)
max. SPL (Nominal/Peak) 102 dB/105 dB (A-Weighted at 10 m)
99 dB/102 db (A-Weighted at 20 m)
97 db/100 dB (A-Weighted at 30 m)
96 dB/00 dB (A-Weighted at 40 m)
Coverage horizontal (fixed) 155°
Coverage vertical (adjustable) Tilting Angle: –60° to 60°
Opening Angle: 16° to 40°
Typical Throw 20 m
Maximum Throw 25 m
Dynamic Range 102 dB
Transducers 24 x 2,5" Full Range Neodym
Sensitivity 1W/1 m 87.5 dB

Electrical Specifications

Audio Input 1 Line
Input Level Nominal 0 dBu (2.19 Vpp)
Input Level Maximum 10 dBu (6.92 Vpp)
Type Balanced
Impedance 20 kOHm at 1 kHz
Audio Input 2 100 V
Input Level Nominal 39.2 dBu (200 Vpp)
Type Balanced with Transformer
Impedance 20 kOhm at 1 kHz

Power Amplifier

Type PWM (Class D)
Output Power 24 x 25 Wnms (8 Ohm)
Power Efficiency 86%
THD+N 0,07% at 10 Wrms/channel
Input Signal Balanced
Channel protections Thermal Shutdown (>150°C)
Output Short Circuit

DSP Module

DSP Processor 48 bit Fixed Point DSP
76 bit internal Accumulator
145 Mhz
Sample Rate 48 kHz
A/D Conversion Resolution: 24 bit linear PCM
Conversion: 1 bit delta-sigma 256x
Sample: 48 kHz
SNR: 102 dB (A-Weighted)
D/A Conversion Resolution: 24 bit linear PCM
Conversion: upsampling 128x
Sample rate: 48 kHz
SNR: 105 dB (A-Weighted)
Signal Processing Beam Forming Filtering
Input Equalization (8 Biquad)
Volume: (-120 dBFS bis 0 dBFS)
Delay (0 m to 30 m, Step 0,1 m)
Dynamic Compressor 2-Bands
Input Signal Activity Detector

Control Module

Processor 32 bit ARM-Cortex M3
RISC
50 MHz
Network Interface RS485. Full Duplex, 115200 bauds/s
Processor Activities DSP Booting
DSP Monitoring
PWM Power AmplifierControling
PWM Power Amplifier Monitoring
Remote Input Channel Controling
Auto Stand-By Controling
RS485 Communication
Panel LEDs Controlling
Firmware Updating

PSU-Module

AC Range 90 VAC to 264 VAC (Universal Input)
Input Frequency 47 Hz to 67 Hz
Efficiency 90 % at 230 VAC
Input Current 4,0 A at 115 VAC
Power Consumption Continuous: 395 VA
Peak: 790 VA
Idle: 12 VA
Stand-By: 4 VA

General Specifications

Height 1970 mm
Width 90 mm
Depth 100 mm
Weight 8.2 kg
Cabinet Powder Coated Aluminium Extrusion
Colour RAL 9010
Special colour available for an additional charge
Temperature Range 0°C to 40°C (32°F to 102°F)
Protection class IP 54
Certificates CE
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