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Quest PB-4120D 4 Channel Class D Power Amplifier - 4 x 120W

Model: PB-4120D

Quest PB-4120D 4 Channel Class D Power Amplifier - 4 x 120W
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More models to choose from:

4 x 120W$986.00
4 x 300W$1,106.00


About: Quest PB-4120D 4 Channel Class D Power Amplifier - 4 x 120W

The Quest Commercial PB-4120D and PB-4300D are versatile and efficient Class D, digital multi-channel power amplifiers of advanced design, able to drive 70/100 V-line loudspeaker systems directly as well as low impedance 4/8ohms speaker loads. The PB-4120D can deliver 120 watts RMS per channel, and the PB-4300D can deliver 300 watts RMS per channel. The PB-Series advanced technology, clear sound, lightweight and reliable performance makes it ideal for any distributed sound system installation.

  • The amplifiers deliver either 120W or 300W of clean power per channel at 70/100V and 4 Ohms
  • Class D amplifier operating at 85% efficiency using switching power supplies. The PB-Series amplifiers generate virtually no heat, thanks to their low current draw.
  • Built-in70/100V output transformers with flat frequency response from 40Hz to 20kHz provide constant voltage for distributed speaker systems.
  • Independent input level controls for each channel allow precise adjustments.
  • Clean, crisp sound – Impressive audio specifications such as < 0.3% THD, dynamic range of 105 dB, crosstalk of > 70 dB, and frequency response of 50 Hz to 18 kHz guarantee ultra-clean sound quality.
  • LED signal indicators for each channel continuously display power output levels and allow you to correct for overloading (clipping) conditions.
  • Forced air cooling via internal fan provides reliable performance without thermal and overheating problems.
  • Input connections for each channel are made using Euroblock connectors to accommodate both balanced and unbalanced signals sources.
  • Output connections for each channel are made using Euroblock connectors which accept 12 gauge wire.
  • CSA/UL approved.
  • Class D & switching power supply
    • PB-4120D @ 120V / 5.8A
    • PB-4300D @ 120V / 13.9A
  • The PB-Series amplifiers can be mounted in any standard 19” rack (taking just two rack spaces), making it easy to integrate into any fixed or traveling PA rig.
  • Housed in a double rack space (2RU) 19” rack mounting housing.
  • Three-year warranty.

Specifications

  • Rated Power (1kHz, 1%THD+N )
    • 120W x4 (70/100V)
    • 60W x4 (8Ω) 
    • 120W x4 (4Ω) 
  • Output Impedance: 4Ω, 100V (83.3 Ω) or 70V (40.8 Ω)
  • Input Sensitivity: 1Vrms
  • Input Impedance: 10KΩ Balanced
  • Frequency Response: 50Hz - 18kHz
  • Total Harmonic Distortion + Noise: < 0.3%
  • Signal to Noise Ratio: > 90 dB
  • Common Model rejection: 70 dB
  • Crosstalk: > 70 dB
  • High-Pass filter switch: 400 Hz
  • Protection: DC-Short Circuit, Over Heating, Overload
  • Cooling system: Temperature controlled fan
  • Amplifier Technology: Class D
  • Power supply: 120V AC, 50/60Hz
  • Weight (Net): 20.3 lb. (9.2 Kg)
  • Unit Dimension (WxHxD): 19 x 14.75 x 3.5 in (483 x 375 x 89mm)

UPC: 694970007802

Reviews: Quest PB-4120D 4 Channel Class D Power Amplifier - 4 x 120W

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Warranty: Quest PB-4120D 4 Channel Class D Power Amplifier - 4 x 120W

AVShop.ca Warranty:

30 Days

Manufacturer's Warranty:

Quest Commercial Audio Products sold in Canada are covered by a 3 year limited warranty. 

Manufacturer's Warranty will cover parts, labour and return shipping back to you once repaired. Shipping into the service centre is not covered