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Discontinued Product

Alpine PDX Series 4/3/2 Channel Power Density Digital Amplifier - PDX-4.100

Abt Model: PDX4100 | UPC Code: 793276300881
This product is no longer available.

Product Details

Alpine PDX Series 4/3/2 Channel Power Density Digital Amplifier, Model PDX4100

Good things come in small, stackable packages. Who knew something so small could pump so much power? The Alpine PDX series amplifiers are for the true car audio enthusiast – for those who want the best power, sound quality, and efficiency, all from a compact size. Get the most out of your system with Digital PDX.

Key Features:

  • Accurate Dynamic Sound Reproduction
    Alpine’s goal is to deliver the best sound quality possible. With the PDX series, digital switch-mode amplification yields incredible sound quality. Advances in the PDX design include improved feedback circuitry to faithfully reproduce the input signal for improved dynamic range and higher fidelity. If you’re listening to your favorite rock song, your amp is ready to jump from loud to calm and back again with ease
  • Installation Flexibility
    The PDX amplifiers’ unique design allow for a clean, easy, and fast install in your car! All the controls and wiring connections are in one convenient location
  • Save Space
    PDX amplifiers are 60% smaller than previous models with the same output power. Install your amps easily without sacrificing valuable room, power and performance
  • Smart Stacking
    The PDX amplifiers feature a smart stackable design. All PDX amplifiers are the same size, regardless of the amount of power or channel specifications. Their exclusive design allows them to be stacked vertically on top of one another. This is an industry-first installation option that saves a ton of space in the trunk or under a seat
  • Low Resistance, High Current Speaker Terminals
    Quick disconnect plugs with low resistance and high current capabilities make installing quick and easy
  • More Power, Better Sound
    PDX amplifiers deliver outstanding sound quality. The revolutionary design of the PDX incorporates improved feedback circuitry and power supply filtering system, plus a damping factor that is 350% better than Class A/B amps
  • Unprecedented Sound Matching & Accuracy
    A highly effective Powerful Feedback Circuit accurately compares the amplifier’s output against the original music signal. If there are any differences found between the two, the feedback circuit automatically removes the distortion in real-time! This keeps your music true to the original recording without added distortion or filter noise
  • Same Power Output - 2 ohm or 4 ohm Configuration
    PDX amplifiers have the unique capability to deliver the same power output regardless of 2 ohm and 4 ohm loads. This provides the ultimate in system flexibility and subwoofer configuration diversity



  • Gain Control: Adjustable
  • Board Design: 4-Layer Glass Epoxy PC Board
  • Final Outputs: Fast Switching, Low Impedance Direct Fets
  • Pre-Amp Stage: Discrete
  • Connector Plating: Gold Plated Input, Output, Power and Speaker Terminals
  • Crossover: Adjustable High Pass, Low Pass
  • RCA Output: Non-Fading Pre-Amp Output
  • Power Indicator: Top Mounted Blue LED Power/Status Indicator
  • Current Protection: Auto Over-Current Protection
  • Board Circuitry: STAR Circuit
  • Power Supply Design: DC-DC PWM Power Supply
  • Power Supply: Fast Switching, Low Impedance Direct Fets
  • Thermal Control: Thermal Management Control
  • Channel Design: 4/3/2 Channel
  • Amplifier Type: Class-D (Switch Mode Digital)


  • Mounting Design: Easy Stacking
  • Screw Mount / Wire Cover: Integrated Wire and Mounting Screw Terminals
  • Terminal Layout: One-Sided
  • Connectors: Quick Disconnect Terminals



  • Signal to Noise: CEA 2006 S/N Ratio (IHF A Weighted, Reference: 1W into 4O) 76 dBA
  • Speaker Impedance: 4 or 2 O
  • Frequency Response: 20Hz - 20kHz (+0, -1dB)
  • Input Sensitivity: 0.2V to 4.0V (For Rated Power)
  • Power Requirements: 14.4V DC (11V to 16V)

Sound Tuning

  • Crossover: Variable, 30-400Hz (-12dB / oct ), Low-Pass/High-Pass /OFF Selectable

RMS Power Ratings

  • Bridged 4 Ohms: Bridged into 4O (=1%THD+N) 200w x 2
  • Per channel into 2 Ohms: (@14.4V =1%THD+N, 20Hz - 20kHz) 100W x 4
  • Per channel into 4 Ohms: (@14.4V =1%THD+N, 20Hz - 20kHz) 100W x 4

CEA-2006 Power Ratings

  • CEA-2006 Power Rating: (4/2 O@14.4V =1%THD+N), S/N 76dBA (Ref. 1W into 4 O): 100w x 4

Approximate Weight:

  • Shipping: 7 lbs
Key Features
3/2 Channel Power Density Digital Amplifier - PDX4100/ 100W x 4 RMS Power Handling/ Adjustable Gain Control/ 4-Layer Glass Epoxy PC Board/ Gold Plated Input, Output, Power And Speaker Terminals/ Adjustable Low-Pass Crossover/ Top Mounted Blue LED Power/Status Indicator/ STAR Circuit/ Thermal Management Control
More reasons to buy the Alpine PDX-4.100 from Abt Electronics
  • Abt.com is an authorized dealer (Learn More).
  • The Alpine PDX-4.100 is Brand New.
  • The Alpine PDX-4.100 Ships in a Factory Sealed Box.
  • Abt ships this product for free!
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