LD4.0
Description :
The LD4.0 is a high-efficiency Class D amplifier designed to cover a 1 300 m² room in a single loop. It includes three units: two switchable inputs (combo and terminal block) that support line or microphone mode, and a priority 100 V input. The device delivers an output current of 15 A RMS and features a compressor and an AGC to ensure optimal audio quality.
AuraConnect: your Aura by Opus installation, from unboxing to go-live, in just a few taps.
You arrive on site with a new Aura by Opus device to install. Instead of digging through a manual, you open AuraConnect, scan the product’s QR code, and the device is instantly recognized, ready to configure. That’s the essential mobile app to configure and manage your Aura by Opus installations, and with it, the entire Aura by Opus range can be set up and controlled in just a few taps, whether you’re an installer or a venue owner.
- Quick device onboarding: scan a QR code or enter the serial number to register a product.
- Full and customizable configuration: broadcast name, transmission power, audio input selection, mono/stereo modes, and more.
- Two user profiles adapted to your needs:
- Owner: view and control all installations, and invite an installer if required.
- Installer: create projects, manage customers and devices from a unified dashboard.
- Centralized management of multiple venues and rooms: create zones, assign devices, and track interventions.
- Real-time updates and status monitoring: stay informed and keep your devices up to date.
AuraConnect makes deploying Aura by Opus solutions smooth, fast, and professional, ideal for public venues, education facilities, reception areas, and multi-site environments.
Don’t wait any longer, download it now!
Accessories or products linked to this reference :
Technical specifications
| Max coverage : single loop | 1 300 m²* |
| INPUT | |
| Audio inputs | 2x LINE/Microphone + 1x 100 V |
| Connector type | Pheonix and/or Combo Neutrik |
| Phantom supply | 12 V, 2 mA |
| Automatic Gain Control (AGC) | > 36 dB |
| POWER SUPPLY | |
| Voltage | 90-265 V AC, 50/60 Hz |
| Passive protection | 3,15 Afuse |
| SETTING AND DISPLAY | |
| Gain adjustment | IN, IN2 and IN3 |
| Treble control | 0 to 9 dB |
| OUTPUT | |
| Max current | 15 A RMS, 42,4 Vpp |
| Max tension | 34 V RMS, 96 Vpp |
| Connections | 1x Neutrik NL4 speakON-socket, layout 1+/1- |
| Frequency range | 100 Hz to 5 kHz (± 3 dB) |
| Distortion | < 1 % at rated output power 1 kHz |
| ADDITIONNAL FUNCTIONS | |
| LED display | Power, Input gain level and Magnetic loop current |
| Headphone | Headphone output 6,35 mm Jack |
| PRODUCT SPECIFICATIONS | |
| Dimensions | 42 x 200x 215 mm |
| Net weight | 1,56 kg |
| *Coverage given as an indication subject to room installation constraints (metal, listening height, geometry etc...). A SmartLoop study is strongly recommended. | |
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