Empower Your Marine Sound
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The superb audio performance and outstanding durability of Alpine's new Marine product line is based on over 30 years experience in the car audio industry. Powerful and amazingly capable: The Alpine Marine PDX-4.100M Power Density 4 Channel Amplifier is a durable, reliable digital power station  providing over 90% efficiency at all power levels – even with the engine off.

459 €
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PDX-4.100M – The Marine Power Station Loaded with 600 Watts of power Alpine's PDX 4.100M Multi Channel Amplifiers play amazingly long and efficient without wasting battery. Alpine's Marine Amplifiers deliver outstanding performance at all volume levels. Engineered for the severe challenges of the marine environment Alpine's PDX-4.100M work with maximum performance and durability.
The PDX-4.100M amps are 60% smaller than previous models with the same output power, which makes it easy to find adequate mounting space. Even two or more amps together make a small package – and, a powerful amp system that installs practically anywhere! The audio and crossover controls are conveniently placed on the front of the amplifier, making them easily accessible for further sound tuning. The Alpine Marine Amplifiers are also perfectly aligned to allow each amplifier to be stacked upon the other. Marine – Ready Marine Coating System and ATSM proven Salt/Fog plus UV-light resistance make Alpine's Marine Amplifiers well-prepared for cruising beyond the limit. Overview

  • 100W RMS x 4 @ 4 Ω (CEA-2006)
  • Marine Coating System
  • Salt/Fog (ASTM B117) Certified
  • UV (ASTM G154/D4329) Certified
  • 4/3/2 Channel (bridgeable)
  • HP/LP crossover 30Hz-400Hz variable
  • "Quick connect" High Current speaker terminals

Super high efficiency Alpine's PDX Marine amplifiers are over 90% efficient at all power levels - drawing less current saving valuable battery power. Cool running to play PDX switch-mode digital amplifier technology allows PDX Marine amps to run cool and resist the harsh marine environment.

Greater System Flexibility Both amps deliver identical output into 2Ω and 4Ω loads, which allows for greater system building flexibility. An efficient way to get more dynamic bass: the amplifier power can be used to drive either one 4Ω speaker or two 4Ω speakers wired in parallel. Power with Extreme Clarity 400 watts of power produce impressive clear and crisp sound. The secret of the clean performance and the effortless power coming from the PDX-1.600M, and the PDX-4.100M is a design that combines improved feedback circuitry and a revolutionary power supply filtering system. In addition they boast a damping factor that is 350% better than Class A/B amps. Smart Stacking Design Saves Space All PDX Marine amps have the same size and shape. Using the removable 1” diameter trim caps from their top, they can be vertically stacked on top of each other, sharing one set of mounting holes. This is an industry-first installation option that saves enormous amounts of 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.

Build a Full System To build the perfect individual marine system for every boat the PDX Marine amplifiers are available in a mono and a 4/3/2 channel designs.
So for those who really want to embark the ultimate boom on the water, Alpine Marine Amplifiers deliver every time.

Omadused & TŠpsustused



  • 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 Ciruit
  • 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 4Ω) 76 dBA
  • Speaker Impedance: 4 or 2 Ω
  • Frequency Response: 20Hz - 20kHz (+0, -1dB)
  • Input Sensitivity: 0.2V to 4.0V (For Rated Power)
  • Power Requirements: 14.4V DC (11V to 16V)


  • Heat Sink (WxHxD): 10-1/8'' x 7-9/16'' x 2-7/16''
  • Heat Sink (WxHxD): 257mm x 192mm x 62mm

Sound Tuning

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

RMS Power Ratings

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

CEA-2006 Power Ratings

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