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Alpine PDX-F6

600W PDX Series 4-Channel Power Density Digital Amplifier

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List price $850.00

$499.99

with warranty

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  • PDX Series 4-Channel Class D Car Amplifier
  • RMS Power Rating (@ 14.4V):
    • 4 ohms: 150 watts x 4 chan.
    • 2 ohms: 150 watts x 4 chan.
    • Bridged, 4 ohms: 300 watts x 2 chan.
  • Total RMS output: 600 watts
  • DC-DC PWM Power supply with STAR circuitry
  • Blue LED power/status indicator conveniently located on the top
  • Discrete pre-amp stage
  • 6-Layer glass epoxy PC board
  • Automatic over-current protection system
  • Soft start turn-on prevent initial system popping
  • 4/3/2 channel operation
  • System Protection circuitry keeps the amp running properly
  • Large aluminum alloy heatsink for extreme heat dissipation
  • Gold-plated RCA level inputs
  • Proprietary screw terminals ensure a solid and secure connection
  • Input sensitivity:0.2-4 V with input level
  • Variable high-pass filter (30-400 Hz, 12 dB/octave)
  • Variable low-pass filter (30-400 Hz, 12 dB/octave)
  • CEA-2006 compliant amplifier
  • Frequency response: 5-100,000 Hz
  • Dimensions: 7-9/16"D x 10-1/8"W x 2"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year Sonic Electronix warranty

Alpine products are warranted solely by Sonic Electronix, Inc. under the same period and terms as the original Alpine warranty. Sonic Electronix is not an Authorized Alpine Dealer and Alpine requires all merchandise purchased by Sonic Electronix customers to be returned solely to Sonic Electronix. Alpine products are also covered by our Standard Return Policy for returns on exchanges or refunds within 30 days from the date of purchase.

Product History:

Alpine PDX-F6 thumbnail
(newest, current model)
Alpine PDX-4.150 thumbnail
(previous model, replaced by Alpine PDX-F6)

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

150 watts x 4 channels
RMS Power @ 2 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

150 watts x 4 channels
Bridged RMS Power

Bridging refers to combining two channels on an amplifier to create one channel with double the voltage and an increased power output. A 2-channel amplifier will bridge down to 1-channel and a 4-channel amplifier can bridge to create 2-channels. An amplifier is most commonly bridged to drive a subwoofer.

Remember, once you bridge two channels down to one its final impedance will be 4 ohms unless otherwise specified. This rating lists the RMS power created once an amplifier is bridged.

300 watts x 2 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
PDX (Alpine)
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

D
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
4
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

600 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
4 ohms
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
0.003%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
No
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
No
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
High-pass (HP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

30 - 400 Hz
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

30 - 400 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
94 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
No
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
30A x 2 
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
73%
4 Star
27%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.6
Value
4.8
Features
4.6
Design
4.9
Usability
5.0

Adam

Canyon Country, CA

Overall
Durability
Value
Features
Design
Usability

WOW

October 30, 2010

Just put the Alpine PDX-F6 in to power Alpine SPR-17S and SPR-17C. This amp is awesome, it runs silent while bringing the best out of these speakers. I love how small this amp is and how much power it delivers for its size. Just WOW. I would recommend these to anyone! Sonic's customer service and shipping were extremely fast and helpful as always!

2 of 2 found this helpful

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troy

Columbus, GA

Overall
Durability
Value
Features
Design
Usability

Troy

July 6, 2014

This is an awesome product. It allowed me to increase my sound quality on my motorcycle!

0 of 0 found this helpful

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Hector

San Diego, CA

Overall
Durability
Value
Features
Design
Usability

great amp great sound

February 6, 2013

this amp is awesome has great dynamics and great sound i will recommend to use speakers with 4 ohms because lower will get the amp pretty hot.. overall great amp!

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Brian Steele

Grenada

Overall
Durability
Value
Features
Design
Usability

Excellent amplifier!

June 3, 2012

Excellent amplifier - well worth what I paid for it. Runs slightly warmer than expected for a "class D" amplifier, but delivers what I expected and more. The use of plugs instead of screw-down terminals for the power inputs and speaker outputs is a definite plus.

0 of 0 found this helpful

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John

Novi, MI

Overall
Durability
Value
Features
Design
Usability

Awesome.. Tons of power in a small size

March 23, 2012

This is the 4th PDX amp I have owned. I have the first gen amps in another vehicle, and was impressed so the new ones are now in my new vehicle. I have this stacked with a M12 under the seat in my pickup, power 6.5" compoents and 6x9 coax speakers. Plenty of power from this guy. All the features work great and it does everything I need it to. I wish it had rca pass-thru's but it is not that criticle. Build quality is top notch, and they are clean as can be. No added gimicks here.

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Steve

Australia

Overall
Durability
Value
Features
Design
Usability

great buy

January 18, 2012

The PDX-F6 was easy to install gives me more than enough power for the small SUV its mounted in, its driven by an Alpine INA-W900E (not happy with the firmware too restricted) Vifa speakers with a Focal under seat sub (120W) there have been no complaints about the sound quality or volume.

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BIG AL

OAKLAND CA

Overall
Durability
Value
Features
Design
Usability

MY 08 ROAD GLIDE SLAPS!

December 22, 2011

This amp gives my bike the power to slap with all the others with just 4 6*9's and 4 6.5's in my fairing all i need is for you to call baggers magazine and spread the word about this slappin amp.

0 of 0 found this helpful

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BRIAN

San Rafael, CA

Overall
Durability
Value
Features
Design
Usability

Love the Type-R stuff from Alpine.

December 13, 2011

Love the Type-R stuff from Alpine. Its like getting the top stuff for half the price. With the right amp/speaker combo, you can really push some heavy rock.

0 of 0 found this helpful

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Fortitude253

Seattle, WA.

Overall
Durability
Value
Features
Design
Usability

VERY pleased!

April 10, 2011

I'm using my PDX-F6 to drive 2 pair JBL C608GTI MKII after an Alpine PXE-H660 using my OEM 2010 Mustang GT Shaker HU. After calibration with my PC, I'm VERY pleased with the results! This AMP is perfect! Powerful, small, cool and LOUD!

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Walt

Killeen, Texas

Overall
Durability
Value
Features
Design
Usability

Small footprint, Impressive power

January 24, 2011

I bought this amp about six months ago and installed it upside down and covered on the back deck. Its digital, so it runs cool and worry free even when pumping out the watts. It also seems to sip power, with a reduction of electrical load on the factory alternator. The connections are awesome too; screw them into a plug and THEN plug them into the amp. Great for working upside down in the dark! This amp is fed by Pioneer's flagship DEX-P99RS and powers JBL GTI 6.5 components. I will say I am missing a hint of warmth that I had with my old JBL/Crown amplifier. I am mean a hint, probably not decernable to the average listener. Overall, the ease of use, the power output and clarity at the highest levels makes this amp a reccomendable one.

0 of 0 found this helpful

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jonathan

windsor, CA

Overall
Durability
Value
Features
Design
Usability

great amp

January 8, 2011

I would recommend this product

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

NVX XKIT44 4-Gauge 4-Channel Wiring Kit

4-Channel 100% OFC Complete True 4 Gauge Amp Kit with RCA Cables and Speaker Wire

Your Price $99.99

T-Spec V12-4DAK 4-Channel 4-Gauge Wiring Kit

Get everything you need to hook up your new amplifier!

Your Price $119.95

NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

Your Price $79.99

Kicker Big 3 Package 1/0 Gauge Big 3 Upgrade Kit

Get all you need including wire cutters to upgrade your power and ground wire.

Your Price $149.99

Belva BBG3KT CCA 1/0 Gauge Big Three Kit

Features everything needed to upgrade factory power and ground wire.

Your Price $39.99

Universal Remote Level Bass Control

Controls bass level and frequency via RCA/Interconnect connectors on any amp.

Your Price $7.99

Small Universal Remote Level Bass Control

The Scosche RLC is a smaller universal bass remote that connects via RCA inputs.

Your Price $11.99

StreetWires FB4

4 AWG / 4 Gauge Firewall Bushing

Your Price $6.95

NVX XDBU4 - Top of the Line!

Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs

Your Price $17.99

Professional Installation for your Car Power Amplifier

Covers labor charges through our professional installer network.

Your Price $89.99

NVX XIV45 4-Channel RCA Audio Interconnect Cable

5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $23.99

StreetWires ZN9 Series Interconnect Cable

16.4 ft. of 4-Channel RCA Cable with Rhodium-plated contacts and ZeroNoise construction for clear signal transfer!

Your Price $99.95

Kicker 4-Channel RCA Audio Interconnect Cable

4 Meters (13 ft.) 4-Channel K-Series RCA Audio Interconnect Cable

Your Price $19.95

NVX XWS1225 12 AWG Speaker Wire

25 ft. of True 12 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $39.99

NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

Your Price $13.99

Belva BBSW127 12 AWG Speaker Wire

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $14.99

Belva BBSW167 16 AWG Speaker Wire

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

Your Price $12.99

Scosche SPL Meter SPL1000F

Handheld boomSTICK measures your SPL range from 60 to 135 dB

Your Price $21.99

AutoSound 2000 CD-102

High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.

Your Price $11.99

AutoSound 2000 CD-104

Audiophile reference series test disc for evaluation of all audio components.

Your Price $11.99

XIX2025 Strapping RCA

0.25 Meter (0.86 ft) Hyper-Flex RCA cable w/ Serpentine-Cut Nickel Plated Connectors

Your Price $12.99

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Product Summary

Manufacturer

Model Number

PDX-F6

UPC

793276301031

Weight

10.50lbs

Internal SKU

pdxf6

Internal Product ID

26219

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Alpine PDX-F6