DS-PA3

RDL DS-PA3 – 3.5 Watt Wall-Mounted Audio Amplifier with Dual Inputs

RDL DS-PA3 is a compact, high-efficiency Class D audio amplifier designed for wall-mount AV installations. It features two line-level inputs – a balanced input on the rear panel and a stereo mini-jack on the front – with automatic source switching.

The rear input accepts both professional and consumer-level signals, with a sensitivity switch on the side of the chassis for installer configuration. When a source is connected to the front mini-jack, the rear input is automatically disabled. The stereo signal from the mini-jack is summed to mono and amplified.

The amplifier delivers 3.5 W RMS into 8 ohms or 6.5 W RMS into 4 ohms, making it ideal for powering a single speaker in conference rooms, classrooms, or exhibit spaces. Output level is adjusted via a front-panel gain control. The unit has no illuminated indicators, making it suitable for dark environments. It operates from a 24 V DC ground-referenced power supply.

Functionality

• Wall-mounted Class D audio amplifier
• Two inputs: rear balanced and front stereo mini-jack
• Automatic input switching
• Stereo-to-mono summing
• Front-panel gain control
• 24 V DC power supply
• Drives 4 or 8 ohm speakers

Features

• Device type: mono audio amplifier
• Output power: 3.5 W RMS (8 Ω), 6.5 W RMS (4 Ω)
• Audio inputs:
  • Rear: balanced/unbalanced line-level
  • Front: stereo mini-jack (-10 dBV)
• Input sensitivity switch (side-mounted)
• Automatic source selection
• Speaker output: detachable terminal block
• Amplifier: Class D, high-efficiency, low heat
• Construction: ultra-compact all-metal housing
• Protections: thermal and short-circuit
• Mounting: wall box

RDL DS-PA3 offers a reliable and flexible solution for localized audio amplification in professional AV systems, with excellent sound quality and seamless source integration.