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

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.

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.

Speaker Control

Let your amps control your speakers. The PDX amplifiers’ groundbreaking damping factor means less distortion and clarity that exceeds other amplifiers.

By the Power Invested in PDX

We now pronounce you amplified. The PDX mono amplifiers can be used with virtually any subwoofer(s). PDX amps produce the same amount of power into both 2ohm and 4ohm so they will get the most from your subwoofers in almost any situation. 

Less Load on your Alternator and Battery

Get the most out of your stereo system without a trailer load of batteries. The PDX revolutionary design provides higher efficiency at all volume levels.

Low Interference

Install these amps anywhere in your vehicle without interference. So you can store an amp or few under your seat, and won’t have to worry about interference coming from other electronics in your car environment. Their small footprint and unique stacking capability make them perfectly suited to the hash in-vehicle environment.

Make Use of your Space

Now you don’t have to sacrifice space in your car for big bulky amps. PDX amplifiers are built from an advanced Power Density design to provide more power per square inch. Stick to PDX to get the best sound quality without taking up too much room.

Stack ‘Em Up

The PDX amplifiers all share a universal chassis size – all models are the same size so you can vertically stack the set up you want. Their unique design makes them easy to stack, easy to install. Plus, the main controls are found behind the front panel of the amp, so the amp always looks neat and tidy and easy to access.

Features

• Class-D
• 4/3/2 Channel Operation
• Stackable Installation Design
• Thermal Management Processor
• Adjustable Crossover (HP/LP)
• MOSFET Power Supply
• DC-DC PWM Power Supply
• MOSFET Final Outputs
• STAR Circuitry
• Auto Over-Current Protection
• Top Mounted Blue LED Power/Status Indicator
• Integrated Wire and Mounting Screw Terminals
• Input Channel Selector
• Input Mode Selector Switch
• One Side Terminal Layout
• Gold Plated RCA Input Connectors
• Continuously Adjustable Gain Control
• Gold Plated Power Screw Terminals
• 4-Layer Glass Epoxy PC Board
• Speaker Quick Connect