LD4.2
Description :
The LD4.2 is a high-efficiency Class D amplifier designed to cover a 3 300 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 2x 15 A RMS and features a compressor and an AGC to ensure optimal audio quality.
Accessories or products linked to this reference :
Product references
| PRODUCTS | |
| LD1.0Lite | Induction room loop amplifier ; single loop : < 180 m² |
| LD1.0 | Induction room loop amplifier ; single loop : < 250 m² |
| LD2.0 | Induction room loop amplifier ; single loop : < 450 m² |
| LD3.0 | Induction room loop amplifier ; single loop : < 900 m² |
| LD4.0 | Induction room loop amplifier ; single loop : < 1 300 m² |
| LD1.2 | Induction room loop amplifier ; single loop : < 600 m² and multi loop : < 300 m² |
| LD2.2 | Induction room loop amplifier ; single loop : < 1 200 m² and multi loop : < 525 m² |
| LD3.2 | Induction room loop amplifier ; single loop : < 2 000 m² and multi loop : < 1 000 m² |
| LD4.2 | Induction room loop amplifier ; single loop : < 3 300 m² |
| ACCESSORIES | |
| OP-V | Plexiglas protection to lock settings on an LD serie amplifier |
| OP-R | Mounting kit for wall or rack, 1U 19" for 1 or 2 LD series amplifier |
Technical specifications
| Max coverage : single loop | 3 300 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 | 2x 15 A RMS, 42,4 Vpp |
| Max tension | 2x 34 V RMS, 96 Vpp |
| Connections | 2x 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. | |
