Bosch Plena – PLM-4Px2x PLENA matrix DSP Amplifiers

Key Features:

• Multi-Channel, High-Quality Audio:

  • 4-channel Class D amplifiers.
  • Flexible output options: 100V, 70V, 8Ω, and 4Ω.
  • Rated power per channel: 130W (PLM-4P125) and 220W (PLM-4P220).

• Advanced DSP Features:

  • Input mixer for flexible source mixing and level control.
  • Crossovers with HPF and LPF filters (up to 8th order).
  • 8-band parametric EQ per zone with dynamic bass enhancement.
  • 120ms output delay per channel.
  • Dynamic Range Compression (DRC) for precise sound control.
  • Mute and output level limiting per channel.

• Environmentally Friendly Power Management:

  • Auto standby mode reduces power consumption by over 80%.
  • Manual or automatic activation with a motion detector.
  • Rapid restoration to active mode with smooth audio ramp-up.

• Seamless Integration with PLM‑8M8 Matrix Mixer:

  • “Amp Link” simplifies setup using a single CAT 5 cable for audio and control.
  • Fully controlled via PC GUI or iOS app; compatible with third-party software.

Technical Specifications:

• Electrical:

  • Power Supply: 100-240 VAC ±10%, 50/60 Hz.
  • Power Consumption:
    • PLM‑4P125: 254W (active) / 27W (idle) / 6W (standby).
    • PLM‑4P220: 412W (active) / 36W (idle) / 6W (standby).
  • Output Power:
    • Continuous: 130W (PLM-4P125), 220W (PLM-4P220).
    • Bridged (Ch 1‑2/3‑4): 250W (PLM-4P125), 385W (PLM-4P220).

• Performance:

  • Frequency Response: 65 Hz to 20 kHz (-1dB).
  • Total Harmonic Distortion (THD+N):
    • PLM-4P125: 0.1%.
    • PLM-4P220: 0.03%.
  • Crosstalk: <-70 dB @ 1 kHz.
  • Dynamic Range (A-weighted):
    • PLM-4P125: >101 dB.
    • PLM-4P220: >102 dB.

• Connectivity:

  • Inputs: 4x 3-pin XLR balanced, 4x Phoenix terminals, 1x RJ45 (Amp Link).
  • Outputs: 4x 3-pole Phoenix terminals for loudspeaker connections.
  • Override: 2-pole Phoenix terminal.
  • Ethernet: 10/100 Mbps RJ45 for network control.
  • 12V Output: For motion detectors or other accessories.

• Mechanical:

  • Dimensions: 90 x 440 x 417 mm (3.5 x 17.3 x 16.4 in, 2RU).
  • Weight: Approx. 15 kg (PLM-4P125), 18 kg (PLM-4P220).
  • Color: Traffic Black (RAL 9017) or Silver (RAL 9006).

• Environmental:

  • Operating Temperature: -10°C to +45°C.
  • Storage Temperature: -40°C to +70°C.
  • Relative Humidity: <95%.

Certifications and Standards:

• Safety: EN 60065.
• EMC Emission: EN 55103‑1.
• EMC Immunity: EN 55103‑2.

The PLM‑4Px2x amplifiers are ideal for venues requiring high-quality sound and efficient energy management, offering advanced DSP features, seamless integration, and flexible control options for a wide range of professional audio applications.