Mono Power Density Digital Amplifier

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Install Under the Front Seat

These amplifiers are so compact, they can even be installed under a seat! That’s right, put 1,000 watts under a seat, instead of filling up the trunk. The controls on the front are still accessible.

• Compact enough for under-seat installation.
• Convenient controls and terminals make installation easy.
• Put the mono amp under one seat and a fullrange amp under the other seat to hide away the entire amplifier system.

Low Resistance, High Current Speaker Terminals

When you disconnect an amp it is hard to connect again because you don’t know the polarization, but the PDX amps eliminate that problem. You just plug the speaker cables into the terminals – you can’t do anything wrong.

• Error-free connections.
• Much faster and easier.
• Convenient installation with pre-wired connectors.

Small Footprint

The illustration shows how amazingly compact the PDX amplifiers are as compared to the previous MRD-M1001.

• About 60% smaller than previous models with same power output.
• Makes it possible to build a serious sound system with powerful bass — without filling up the boot!!

Same Power Output into 2Ohm and 4Ohm

The ability to provide the same output to 2Ohm and 4Ohm provides greater system building flexibility.

• Mono amp has two subwoofer connectors, making it easy to add a second subwoofer.
• Same amount of power used to drive one 4Ohm speaker can drive two 4Ohm speakers when they are wired in parallel to create a 2Ohm load.
• Efficient way to get more dynamic bass.

Full Range Class-D Amplification

Class-D amplification provides extremely high efficiency, with power losses much lower than with other types of operation. The PDX amps set new benchmarks for performance and accuracy. They use an advanced power supply, custom DSP processor and a true digital Class-D circuit for superior power production and efficient operation.

Excellent Sound Quality

In the PDX-4.150 and PDX-2.150, Alpine met the challenge of producing a full range digital amplifier to rival the sound quality of even the best high-end Class A/B amplifiers. They use improved feedback circuitry to faithfully reproduce the input signal for improved dynamic range and higher fidelity. A revolutionary power supply filtering system, lower switching frequencies and lower output impedance combine to create extremely low distortion and greater speaker control, for clarity that meets or exceeds that found in the best Class A/B amplifiers. All three amps benefit from the use of trickle down technology from the AlpineF#1Status amplifier.

Amazing Power Density Ratio

Alpine’s goal is to give customers powerful amps that take up a minimum of space, and this has been achieved as never before with the PDX amps. We have even developed a new way to measure this performance, called the Power Density Ratio. To find it, divide the total RMS power from all channels by the total displacement volume of the amplifier in cubic centimeters (WxDxH).

The PDX-1.1000, for example produces an impressive 0,27 watts per cubic centimeter. Competitors only achieve a Power Density Ratio of about 0,13. The PDX-1.1000 is also extraordinarily small and efficient. In fact, the power supply is so efficient that the amp does not need a heat sink. All the power goes into output, not heat.

Layered Installation

All of the new PDX series amplifiers share an identical form. Using the removable 1” diameter trim caps from the top of the amplifiers, the amplifiers can be vertically stacked on top of each other and share one set of mounting holes – an industry-first installation option.

• Can stack up to 3 PDX amps without increasing footprint of installation space

Features

• Power Density Ratio Design
• DC-DC PWM Power Supply
• Discrete Pre-Amp Stage
• Switch-mode Digital Amplification
• Subsonic Filter (30Hz/50Hz selectable)
• S.T.A.R. Circuit
• 1 Preout
• High Temperature Protection
• Over Current Protection
• Variable Crossover
• Layered Installation Capability
• Quick Connect Speaker Terminal
• Same Power into 2ohms and 4ohms

Power Specification

• 1500W MAX Power
• 1 x 600W RMS (2ohms, 14.4V, 1% THD)
• 1 x 600W RMS (4ohms, 14.4V, 1% THD)
• S/N Ratio (IHF A Weighted ) 110dBA
• Frequency Response  20Hz - 200Hz (20Hz +/-1dB, 200Hz –3dB)
• Crossover Frequency 50Hz - 200Hz (-24dB/oct)
• Input Sensitivity (V/at 10k ohms) 0.1 - 8.0V
• Dimensions 257 (W) x 192 (H) x 62 (D) mm
• Weight 3.11kg