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Alpine PDX-1.600

Mono subwoofer car amplifier
600 watts RMS x 1

15 Reviews

Item # 500PDX1600

This item is no longer available.

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Our take on the Alpine PDX-1.600

The PDX-1.600 mono amplifier supplies a whopping 600 watts of power from its amazingly compact body, plenty of punch for most sub systems. Beefy internal components and clever engineering keep the power output strong and the noise low for superb fidelity and control. The adjustable low-pass filter tailors the amp's output to your specific system.

Alpine Authorized Online Dealer

Cool and Compact Amps

Sometimes size doesn't matter. You get big power from a little box with Alpine's Power Density Digital Amplifiers. Super-efficient Class-D technology allows these small-but-mighty amplifiers to run so cool they can be stacked together for a sweet multi-amp setup, freeing up valuable space in your car.

stackable up to 3 high

Heavy duty, clean power

The PDX-1.600 mono amplifier supplies a whopping 600 watts of power from its amazingly compact body, plenty of punch for most sub systems. Beefy internal components and clever engineering keep the power output strong and the noise low for superb fidelity and control. The adjustable low-pass filter tailors the amp's output to your specific system.

High-quality connections

gold-plated connections

Front-mounted controls make post-installation adjustments a snap. Gold-plated RCA inputs, outputs, and power connections resist corrosion and signal degradation. Nifty speaker wire plugs ensure a tight connection and guarantee that your speakers play in unison.

Confused about impedance? Check out our article on matching subs and amps.

Note: Sorry, Crutchfield cannot ship Alpine products to Guam or Puerto Rico.

Product Highlights:

  • mono subwoofer amplifier
  • 600 watts RMS x 1 at 4 ohms (600 watts RMS x 1 at 2 ohms)
  • CEA-2006 compliant
  • stackable installation design with front-panel controls
  • variable low-pass filter (50-200 Hz, 24 dB/octave)
  • switchable subsonic filter (15 or 30 HZ)
  • quick-connect speaker connectors
  • preamp-level inputs and outputs
  • Class-D amplifier design
  • MOSFET power and output stages
  • fuse rating: 20A x 4
  • 4-gauge amp wiring kit with 80-amp fuse recommended — wiring and hardware not included with amplifier
  • 10-3/16"W x 2-1/2"H x 8-1/2"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

I had this hooked up to a JL 13TW5 in my tacoma at half power and my chest was pounding so much. I love my amp I think i may actually turn it up to see what it can do!!

Nic, San Diego, CA

What's in the Box:

  • Mono amplifier with four 20-amp blade fuses installed
  • 1 Speaker quick connect terminals
  • 4 Joint caps (for stacking multiple amps)
  • Four 1-1/2" Self-tapping screws
  • Four M4 x 36mm Machine screws
  • Eight M2.6 x 14mm Machine screws (with lock washers attached)
  • 2mm Allen wrench
  • 4mm Allen wrench
  • Owners Manual (English/French/Spanish)
  • Customer Care Registration/Survey
  • Warranty sheet
  • Specification verification certificate

Alpine PDX-1.600 Reviews

Average Customer Review(s):

(15 Reviews)

PDX Series

Vacas K from Pakistan on 12/6/2012

I bought this PDX 1.600 to run one cerwin vega 12.4 - 500 watts RMS in a ported box tuned at 37hz with net volume of 1.26 cf. All i know about ALPINE amps that they are the best to produce great and clean sound so does this little spy. The performance was as per my expectations along with the decore. A super clean and clear with noticeable lows in any kind a music.. Must buy it.. worth money spending.. :)

Pros: stackable small in size so can be place any where in car room. very clean, deep punch with zero distortion

Cons: none so far

Alpine & subwoofers

Victor from SoCal on 4/11/2010

I came a across a really sweet deal on a close out price on the PDX 1.600 so I purchased two of them. I will be powering the best sounding 8" subs on the market. Beating out the competition 3 years in a row with the highest SPL systems in the car audio world. Plus the beauty of these subs they out pound and sound deeper louder than any sub out there and they can out perform with one driver what two outside competitor subs can do in a enclosure of optimal proportions and TS parameter designs and porting. I have two 8" subs in a custom fibergalss ported console enclosure with the entire under seat as part of the enclosure as well and each 8" sub handles a incredible 500 watts rms and peak at 1800watts more than any conventional 10" or 12" would do thermally with out voice coil failure. I was tight on space and the power for each will be optimal for what I want in my 2006 Nissan Frontier Crew cab behind the rear seat. Well I can't wait to install them with all 4 & 0 gauge power cable I will have one mean arsenal of power with XS power batts and Odyssey batts! With my Alpine 9887 HU and PDX amps will have one mean combination! :)



Worth every Cent

Nic from San Diego, CA on 4/10/2010

I had this hooked up to a JL 13TW5 in my tacoma at half power and my chest was pounding so much. I love my amp I think i may actually turn it up to see what it can do!!



best for price

Ben from Bangor, ME on 2/13/2010

i have had this for about a year now, and just last week i realized that it was only putting out half the power. There is a Volt switch that was turned to .1- 1v for head units that only put out that kind of pre-out voltage. I now only have it turned up half-way, and have done damage to my car. So if (and you should) you get this amp, make sure that switch is turned to the right setting. It is also a very efficient amp, so it wont dim your lights as bad as an analog amp; so if you have a car with a smaller engine, this is a must if you want good power for smaller cars. It has only turned off once, because stupid me left it cranked up at a party with the car turned off, and it drained the battery. You cant go wrong with Alpine



Great Amp!

Darren from Clayton, NC on 11/25/2009

I have this running a JL W6v2 12" in the Pro-Wedge Sealed Box and I couldn't be happier. The sound is super clean, and installation on this amp is very easy. The small/compact size makes it snap to place and if you purchase another in the PDX line, they stack and look amazing. You will not be disappointed.



clean amp

Logan from santa barbara, ca on 9/1/2009

I first had this amp hooked up to a 12" alpine type r sub which hit well. i now have it hooked up to 2 10" JL audio w3s which hits good also. if your looking for an amp that hits really hard this amp is not for you this amp is SQ not SPL. it has super clean bass. my certificate also came back 690w RMS so it has power.doesn't really ever get hot.real a 4 guage kit or wires this amp does not mess around with power it draws.



Great clean bass

Ben from Bangor, ME on 8/8/2009

I ended up putting this with 2 P2 12's in a '05 Accord, and my back seat folds down, which seems to be even louder. There was a "Certification" certificate in the box this came in, and it said that its rated for 705 watts continuious power, so you really get a good amp for the price (plus its Alpine). The only regret is that I have 8 guage wiring for it, thanks to letting my local big box store hook it up for me. It is a very efficient amp that runs cool. I have the gain turned all the way up on mine, and with it cranked up my lights hardly dim. Like someone put on a previous comment; i have stuff falling off in my car. If your the type of person that wants a lot of power that doesnt turn your headlights off at night, then get this digital amp. I think its worth the price.



Great Subwoofer Amp

Ray from Philly on 7/17/2009

I just got this amp to power my two 12'' Kicker L5 subs. I couldn't be any happier with my purchase. Not sure if it's the subs or the amp, but the combination kills. This amp keeps my mirrors rattling and my windows shaking. My entire car goes wild and pieces of my door panels have fell off from the power this amp brings. Get this amp.



PDX 600 Mono

Bubaluke39 from Shrewsbury, MA on 6/25/2009

Crutchfield Customer Review (What's this?)

This amp is well woth the money and it is so small. I can not belive how much power this little amp can put out. I only have the gain not even at half and you can here it form a block away. I am running two JBL GTO 12 in a bandpass box in my rsx. The bass is so clean and clear. I also like how cool it runs as well. If power and small size is what you want GO ALPINE!!!



I Love this AMP! Best one I've owned so far.

Joseph from Roanoke, VA on 6/17/2009

Like the title says, this is the best amp I've owned so far. I've owned various different brands, Rockford, Kicker, etc. I had the MRP-1000 before trading it in for this one. This Alpine PDX amp simply rocks compared to all others. Although I have a Kicker 400 mono amp in another car that sounds great also. This to me sounds just as loud as the MRP-1000 amp, but this one sounds sooo much cleaner bass. Since its a digital amp it doesn't get as hot either, just gets a little warm and thats it. Doesn't seem to draw as much power as my lights don't dim much compared to the MRP-1000 amp. This is a "Great" amp. Wish I had the money for the PDX 1.1000 amp though, I'm sure that one really rocks. Buy this one, I highly recommend it.



type R

brad from central IL on 5/14/2009

I got a great deal on this amp after blowing up my kenwood KAC 9104D which is a 1800 watt mono, this amp pushed my 12" type R's great but just didn't last in the long run...i got the 1.600 the day i blew my kenwood up and its a completly different world now hits harder, cleaner and just all around better....i'm now going to buy another one and another sub i'm completely impressed with this amp and can't wait to get another one...great design small easy to hide if you wanted to and easy to stack if your looking for a small amp with a HUGE kick this is the amp to buy!!!



Alpine PDX-1.600

Dan from Westerly, RI on 1/6/2009

I bought this amp to drive two Alpine Type S 10" subwoofers. Let me tell you, this thing has a TON of power. Clean, brutal, power. The test slip reads 731wrms. Simple controls, cool operation, and an awesome appearance really make this a great addition any system in the 500w - 700w range. Also, make sure you do run 4Ga. wire. My battery is in my trunk, right under the amp itself, and I figured 8Ga. would do the trick for a short run. Wrong. Go 4 Ga. big difference. Kinda wish it had bass boost though, I'm an EQ freak.



Excellent Amp!!!

ssgdukes from St. Louis, MO on 11/7/2008

I bought this amp last week and after tweaking it and tuning it to my listening pleasure I must say it is the best amp I have ever owned. It is very effective in power management and sound quality. Hits hard with clean and precise sound. I have it pushing 2 12 inch Type E's in a sealed box and this amp pushes them perfectly. I recommend this amp to anyone looking for effective SPL and SQ.



Excellent Cool Running Amp...

larryvk from Seattle, Washington on 10/4/2007

Crutchfield Customer Review (What's this?)

Take this from an Electrical Engineer, this amp is great. Stays extremely cool even though being ran at a very high load. I use a 20 Farad capacitor to supply immidiate power. With this combination, the amp hits hard and low. It also looks great, has a very small footprint and has a well thought out layout. I suggest try it.



pdx 1.600

james from tampa, fl on 8/23/2007

I bought this because I wanted a small high powered class d amp, I knew it would push what it said it would and hooked up to a kicker L5 12" in the my hatchback it hits hard. Mounted it to the back of the box for a clean look. I have only ever owned profile amps that seemed to work pretty good but this alpine spanks them and is about half the size. It was either this or the kicker amp but this was smaller and had a better look. I am in no way disappointed and you won't be either if you buy this amp in my opinion.




Hands-on research

Product Research



PDX Amplifier Design: Class-D amplifiers boast higher efficiency, produce much less heat, and draw less current than traditional Class-AB amps. The PDX series is Alpine's totally new super-efficient power density design of full range class-D amps. They combine MOSFET power supplies, MOSFET final outputs, and a thermal management processor, along with a 4-Layer Glass Epoxy PC Board to create a high-end sound quality without the bulky heat sinks required by most amps with this much power.

STAR Topology: Alpine's unique STAR (Signal Transit for Accurate Response) Circuit PCB design provides a single common ground for all amp sub-blocks, preventing ground interference and minimizing internal noise.

2 and 4-ohm Stable: The PDX mono amplifier can be used with virtually any subwoofers because the PDX amplifier produces the same amount of power into both 2-ohm and 4-ohm, so you will get the most from your subwoofers in almost any application.

Speaker Control: The PDX mono amplifier's groundbreaking damping factor precisely controls the linear movement of your subwoofer giving your system less distortion and more clarity that exceeds other amplifiers.

Subsonic Filter: Also called an infrasonic filter, a subsonic filter cuts off extremely low bass (below the range of human hearing) that many speakers cannot effectively reproduce, thereby making the amp's power supply and output devices, and the speaker, more efficient. The subsonic Filter can either be set to 30Hz, 15Hz or Off.

Low Pass Filter: The amplifier features a built-in Low Pass Filter with a rotary, variable adjustment knob which permits adjustment of the crossover frequency, by rotating the knob to select any frequency between 50 to 200 Hz as the crossover point.

Terminal Layout: For wiring convenience all the inputs and outputs on the amp are on one side.

Verification Certificate: The amplifier comes with a certificate that lists the RMS power output of the individual amplifier. It also lists the model number, serial number, test date, and the test conditions (14.4 volts, 4 ohms).

CEA-2006 Compliant: CEA-2006 is a new system of testing & measurement methods for mobile audio amplifiers. This voluntary standard advocates a uniform method for determining an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured into a 4-ohm load, with 1% or less Total Harmonic Distortion (THD) plus noise, and at a frequency range of 20 Hz to 200 Hz when applicable. Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4 ohms. CEA-2006 allows consumers to compare car amplifiers and receivers on an equal basis. The Alpine PDX-1.600 under CEA-2006 regulations is rated at 600 Watts RMS x 1 channel at 2ohm or 4ohm with a 80dBA signal to noise ratio.

Speaker Connecters: The PDX series amps use a new Speaker Quick Connect plug to attach the speaker wires to the amp. Bare speaker wire, up to 8 gauge, is held in place by a set screw, the Quick Connect plug then plugs into the amp. Like an RCA jack, the Quick Connect plug uses a center positive layout, so it fits two ways and both maintain correct polarity.

Line Level Output: In addition to the line inputs, the PDX-1.600 has non-fading left and right female RCA outputs for extra system flexibility.

Stack Amps: Because the PDX series design generates so little heat, up to three amps can be stacked and bolted together. All three amps in the series, PDX-2.150, PDX-4.150, and PDX-1.1000 share the same footprint, so they can be stacked together.

Notes: When stacking multiple amplifiers, do not install vertically or at an incline. Any stack installation other than parallel to the vehicle floor, invalidates the warranty.

LED: The top mounted LED Power/Status indicator glows blue when operating normally and red when one of the protection circuits engages.

Protection Circuits: This amplifier includes protection circuits to prevent damage due to the following conditions:

  • ambient temperature too high
  • supply current too high
  • short to ground
  • over voltage


Controls (front of unit): The controls are hidden and protected by a removable metal door. The door is removed by unscrewing one hex-head screw with the supplied allen-wrench. The door is to be secured back into place once the controls are set.

  • Crossover Frequency: rotary control to select the low pass crossover frequency, variable from 50 to 200Hz, 24 dB/octave
  • Gain Control: rotary control to set the amplifier's gain according the level of the incoming signal, continuously variable from 0.1V to 8.0V depending on the Gain Range setting
  • Gain Range: select 0.1-1.0 volt or 1.0-8.0 volt range for the rotary control depending on the output RCA level of your head unit
  • Subsonic Filter: off, 15 Hz, or 30 Hz


Inputs and Outputs (rear of unit): The amplifier comes supplied with two allen-wrenches to tighten the amp's terminals and secure your wiring.

  • Power and Ground terminals: power and ground terminals are gold plated set screw terminals, will accept up to 4 gauge bare wire, Alpine recommends using a 4 gauge wire but a 6 gauge wire minimum can be used
  • Remote Turn-on terminal: gold plated set screw terminal, will accept 12 gauge to 8 gauge bare wire
  • Speaker terminals: the speaker output uses Alpine's Speaker Quick Connect plug
  • Line Level Input: Left and right female RCA jacks, gold plated
  • Line Level Output: Left and right female RCA jacks, gold plated

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.