The digitally stereable column speaker Ascolto LH4025 is particularly suitable to ensure an extended coverage in large environments, such as auditoriums, churches with long aisles, cathedrals, basilicas and in general where it needs simultaneously a very incisive beam and a bright tone, capable to transmit perfectly voice as well as music.
The multibeam DSP filtering technology steers the vertical radiation patterns, matching the desired listening pattern, making column speaker Ascolto LH4025 high directive and featuring the main propagation lobes less dependent on the frequency.
Key features
Optional
Applications
Fitting accessories for installation
All digital sound columns of the Ascolto series are developed and manufactured in Germany.
| Frequency Bandwidth | 120 Hz – 20 kHz (±3 dB) |
| Maximal SPL | 132 dB (A-Weighted bei 1 m) |
| Nominal SPL (1 W/Loudspekaer) | 120 dB (A-Weighted bei 1 m), 104 dB (A-Weighted at 10 m), 101 dB (A-Weighted at 20 m), 99 dB (A-Weighted at 30 m), 98 dB (A-Weighted at 40 m) |
| Coverage horizontal (fixed) | 155° |
| Coverage vertical (adjustable) | Tilting Angle: –60° to 60° Opening Angle: 10° to 40° |
| Typical Throw | 30 m |
| Maximum Throw | 35 m |
| Dynamic Range | 102 dB |
| Transducers | 40 x 2,5" Full Range Neodym |
| Sensitivity 1W/1 m | 88,7 dB |
| Audio Input 1 | Line |
| Input Level Nominal | 0 dBu (2.19 Vpp) |
| Input Level Maximum | 10 dBu (6.92 Vpp) |
| Type | Balanced |
| Impedance | 20 kΩ at 1 kHz |
| Audio Input 2 | 100 V |
| Input Level Nominal | 39.2 dBu (200 Vpp) |
| Type | Balanced with Transformer |
| Impedance | 20 kΩ at 1 kHz |
| Audio Input 3 | Dante Audio Networkiing |
| Network | Dante Audio over IP |
| Transport Layer | Ethernet |
| Dante Latency | 1, 2 or 5 ms (configurable using Dante Controller) |
| Sampling rates | 48 kHz |
| Bit Depths | 24 |
| Type | PWM (Class D) |
| Output power | 40 x 25 W rms |
| Power Efficiency | 86% |
| THD+N | 0.07% at 10 Wrms/channel, 1 kHz |
| Input signal | Balanced |
| Channel protections | Thermal Shutdown (Tjunction< >150°C) Output Short Circuit |
| 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 512x 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 (10 Biquad) Volume: (-120 dBFS to 0 dBFS) Delay (0 m to 30 m, Step 0.1 m) Dynamic Compressor 2-Bands Input Signal Activity Detector |
| Processor | 32 bit ARM-Cortex M3 RISC 50 MHz |
| Setup Network Interface | RS485, Half Duplex, 115200 baud/s 120 Ω Parallel Termination (recommended for long distance) This network interface is used by AVE Line Array User Contol software to manage beam setup and other audio features. |
| Dante Network Interface | Ethernet, 100 Mbit/s (available only in Ascolto – Dante Series). |
| Processor Activities | DSP Firmware Booting DSP Status Monitoring PWM Power Amplifier Functions Controlling PWM Power Amplifier Status Monitoring Audio Input Channel Functions Controlling Dante-Chip Ultimo UXT Control (in Ascolto – Dante Series) Auto Stand-By Controlling RS485 Communication Infrared Communication Panel LEDs Controlling Firmware Updating |
| Audio Inputs Connector | 3-pole, 3.81 mm-pitch |
| Audio Inputs Pinout | pin 1: hot signal (+) pin 2: cold signal (-) pin 3: earth (chassis ground) |
| RS485 Network Connector | 3-pole, 3.81 mm-pitch |
| RS485 Network Pinout | pin 1: data + pin 2: data - pin 3: digital ground |
| Dante Network Connector | 8 pin Ethernet RJ45, female connector |
| Mains Connector | Module IEC 320-C14, Belastbarkeit 250 VAC, 10 A, Approvals: UL, CSA, TÜV, CCC |
| AC Range | 90 VAC to 264 VAC (Universal Input) |
| Input Frequency | Input 47 Hz to 67 Hz |
| Efficiency | 91% typ at 230 VAC |
| Power Factor Correction | Yes |
| Input Current at Full Load | 8.0 A typ at 115 VAC 4.0 A typ at 230 VAC |
| Power Consumption | Continuous: 790 VA Peak: 1027 VA Idle: 24 VA Stand-By: 4 VA |
| Protection | Thermal Protection Short Circuit Protection Output Current Limiting Under-Voltage Lock Out |
| Main Fuse | 1 × 6.3 A (slow blow) |
| Electromagnetic compatibility | EN 55022, class B, FCC part 15, level B |
| (EMC), Emissions | IEC/EN 61000-3-2 class B |
| Height | 3190 mm |
| Width | 90 mm |
| Depth | 100 mm |
| Weight | 14.0 Kg (30.86 lbs) |
| Cabinet | Powder Coated Aluminum 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 |
