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Ave Stuttgart – Ascolto LH3225

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 LH3225 is unique for its acoustic directivity, extremely selective and capable of reaching deep space. The Ascolto LH3225 is particularly suitable to ensure an extended coverage in large environments, where it needs simultaneously a very incisive beam and a bright tone.

Ascolto LH3225

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 LH3225 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 LH3225 is optionally available with Dante card. Thus the LH3225 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) 103 dB/106 dB (A-Weighted at 10 m)

100 dB/103 db (A-Weighted at 20 m)

98 db/101 dB (A-Weighted at 30 m)

97 dB/100 dB (A-Weighted at 40 m)

96 db/99 dB (A-Weghted at 50 m)
Coverage horizontal (fixed) 155°
Coverage vertical (adjustable) Tilting Angle: –60° to 60°
Opening Angle: 12° to 40°
Typical Throw 25 m
Maximum Throw 30 m
Dynamic Range 102 dB
Transducers 32 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 32 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 5,5 A at 115 VAC
Power Consumption Continuous: 533 VA

Peak: 1065 VA

Idle: 24 VA

Stand-By: 4 VA

General Specifications

Height 2655 mm
Width 90 mm
Depth 100 mm
Weight 11.2 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