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Rockford Fosgate PS-8

Punch Series powered 8" subwoofer

Item # 575PS8

Been disappointed with compact powered subs in the past? Rockford Fosgate brings you a space-saving powered...

Been disappointed with compact powered subs in the past? Rockford Fosgate brings you a space-saving powered...

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About the Rockford Fosgate PS-8

Rockford Fosgate gets small

Been disappointed with compact powered subs in the past? Rockford Fosgate brings you a space-saving powered subwoofer with some serious kick. The Punch Series PS-8 houses a high-performance 8" shallow-mount sub and a 150-watt Class D amplifier in a compact enclosure, a perfect match for compact cars, trucks, SUVs, and anywhere else you want Rockford Fosgate's signature sound in a limited space.

Rockford Fosgate gets small

Been disappointed with compact powered subs in the past? Rockford Fosgate brings you a space-saving powered subwoofer with some serious kick. The Punch Series PS-8 houses a high-performance 8" shallow-mount sub and a 150-watt Class D amplifier in a compact enclosure, a perfect match for compact cars, trucks, SUVs, and anywhere else you want Rockford Fosgate's signature sound in a limited space.

Rockford Fosgate PS-8 Powered 8" Subwoofer

You'll find the controls you need to tune this powered sub to fit your system.

Features get big

The PS-8 features a comprehensive set of controls for getting the bass right in your vehicle, including an adjustable low-pass crossover, onboard Punch EQ control, and a selectable phase control that gets this sub firing in concert with the rest of your speakers.

You can select from three different turn-on modes, and the wired remote control allows you to adjust the bass from the front seat. And the PS-8 also includes all the wiring and mounting hardware you'll need to install it.


Product highlights:

  • 8" powered shallow-mount subwoofer
  • built-in Class-D amplifier (150 watts RMS)
  • adjustable 12 dB/octave crossover
  • phase control (0/180 degrees)
  • onboard Punch EQ control
  • remote bass level controller included
  • high/low level input select
  • 3-way (remote/DC offset/signal sense) turn-on select
  • short-circuit, thermal, and reverse polarity protection
  • power, ground, and turn-on wires and mounting hardware included
  • dimensions: 14-1/2"W x 9-1/2" D x 3-3/8"H
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # PS-8

What's in the box:

  • Enclosure loaded with one 8" woofer and built-in amplifier
  • 17' 10-gauge power wire with in-line fuse holder
  • 10-amp fuse (installed in fuse holder)
  • 18" 10-gauge ground wire (ring terminal attached to one end)
  • Removable power plug
  • 12" Signal input harness
  • Remote Level Control
  • Metal mounting bracket (for remote)
  • 15' Remote cable (3.5mm plug on both ends)
  • Two 3/8" Remote mounting screws
  • Four 1" Self-tapping screws
  • Installation and Operation manual (English/ French/ Spanish/ German/ Italian)

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<< >>

More details on the Rockford Fosgate PS-8

Pat M.

Features & specs

Enclosure Type Sealed
Finish Material Cast Aluminum
Grille Steel
Connector Type Harness
Bi-amp Inputs No
Woofer Size (inches) 8
Woofer Material Not given
Passive Radiator ---
Width 14-7/16"
Height 3-7/16"
Depth 9-1/2"
Second Depth N/A
Parts Warranty 1 Year
Labor Warranty 1 Year
Frequency Response 25-120
Amplifier Power (RMS) 150 watts
Maximum Wattage 300 watts
Sensitivity N/A
Impedance N/A
Second Voice Coil Impedance N/A
Crossover Point 50-120

Product Research


Overview: The Rockford Fosgate Punch PS-8 is an all-in-one bass solution featuring an 8" woofer in a cast aluminum enclosure and a built-in 150 watt RMS amplifier.

Closed-Loop Design: The closed-loop design allows Rockford Fosgate to build the woofer, amplifier, and enclosure as a single system, optimizing each element for the best possible performance with the others.

Klippel Verified: The Klippel distortion analyzer, a device that uses a laser and sophisticated software to do large-scale analysis of drivers in motion, lets Rockford Fosgate optimize the speaker's motor structure, voice coil alignment, and suspension to yield the best possible performance.

CEA-2031 and CEA-2006 Compliant: The subwoofer's power handling and the amplifier's power output conform to CEA industry standards, allowing consumers to make an apples-to-apples comparison between the PS-8 and other powered subwoofers bearing the CEA-2031 and CEA-2006 logos.

Integrated Amplifier: The 8" woofer is powered by a built-in Class-D amplifier rated at 150 watts RMS.

Quick Disconnect Power/Ground: The power, ground, and remote turn-on wires attach to a quick disconnect terminal block, so the subwoofer can be easily removed when you need more storage space. Each terminal is a set screw clamp and will accept up to 10 gauge wire.

Audio Inputs: The amplifier section will accept either a line level (RCA) or speaker level signal. The included 12" input harness has a Molex plug on one end and female stereo RCA jacks on the other. When using a speaker level input, cut the RCA jacks off and splice into the remaining wires. Adjust the Input Level switch to match your input type, High for speaker level input or Low for line level (RCA) input.

Auto Turn-On: The Auto Turn-On switch offers three options:

  • REM: the amp turns on when +12 volts DC is applied to the remote terminal
  • DC Offset: the amp turns on when a DC offset voltage is detected on the signal inputs (from a speaker level source)
  • Audio: the amp turns on when an incoming audio signal is detected (can be used with line level or speaker level inputs)

Note: When the DC Offset or Audio setting, the REM terminal becomes a 12 volt output, for turning an additional amplifier on.

Gain control: The rotary gain control allows you to match the output level of your headunit to the input level of the powered subwoofer.

Crossover: The 12 db/oct low-pass crossover is always engaged; the crossover point is adjustable from 50 to 120 Hz.

Punch EQ: Use the rotary dial to adjust the bass boost; continuously variable from 0 to +12 dB, centered at 45 Hz.

Phase: A switch allows you to reverse the phase of the subwoofer (0°, 180°).

Protection Circuit: The PS-8's amplifier is equipped with thermal overload, short circuit, and reverse polarity protection. The amplifier will shut down if any of these situations is encountered.

Remote Punch Level: A wired Punch Level Control is included so you can adjust the output level from the driver's seat. The remote has a bracket to mount it under the dash. The included 15' cable, with a 3.5mm mini-plug on each end, connects the remote to the subwoofer.

Note: The Punch Level Control measures approximately 2-3/8" wide x 1" high x 2" deep (3-1/2" deep including the knob and cable).

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Customer Q&A

27 questions already asked

Was told i need a module to install this into my truck does it come with that?
[ J  Jun 26, 2020 ]
2 answers
I don't know what module they are talking about, but all u need is a basic amp wiring kit & about 1hr of time. It's easy & makes a huge difference in sound!
[ KELLY S  Jun 27, 2020 ]
I needed no module. Just connected it to my head unit. And of course wired it for power to the positive side of the battery. Comes with instructions and all the parts you will need. Except for any connectors you will need to wire to the head unit.
[ Jerry  Jun 27, 2020 ]
How to connect to speakers without preamp outs? My 07 miata has no rear speakers. They were removed to install a rollbar. I think i have the factory harness for those speakers.
[ Travis  Jun 17, 2020 ]
1 answer
If the speaker wiring is still there and connect to the car stereo you can use the high level input on the PS8. Look up your car stereo wiring on google or give Crutchfield a call.
[ Mike B  Jun 18, 2020 ]
Has anyone else got a rumbling sound every time this sub is powered up?
[ Fletch  Aug 30, 2019 ]
1 answer
I ordered a pair of these for my F150 and yes, I have a rumbling noise. I have since wired the power directly to battery but still have noise. Haven't had time to get back to it.
[ John  Sep 02, 2019 ]
Will This Fit Under The Seat Of A Chevy SSR?
[ #BIGBOSSHAWG  Jun 17, 2019 ]
3 answers
Not sure. It fit under the rear seat of a 2014 Nissan Frontier which is what I have.
[ VIRGINIA  Jun 21, 2019 ]
Not sure. We put it behind seat in a 2007.5 Silverado
[ Kuckuck  Jun 18, 2019 ]
I don't know how much space you have? It fits under my passenger seat fine(98 Toyota Tacoma SR5 extra cab) and sounds great. The product dimension is listed in the description. Hope this helps.
[ Eric  Jun 17, 2019 ]
Will this mount under a TJ Wrangler's front seat?
[ Angela  Jun 14, 2019 ]
1 answer
Yes it should as long as it has factory seats. I would just check the height you have under the seat and the width before installing.
[ Matt  Jun 14, 2019 ]
Can you hook this up to a 2018 Nissan Titan Rockford Fosgate stock system?
[ Javier  Mar 26, 2019 ]
2 answers
Yes, it will work fine. Just needs power and source input. You should be able to grab the rear speaker wires for the inputs.
[ Michael  Apr 02, 2019 ]
Yes this unit has line level inputs so you can hook to speaker outputs on stock system.
[ Leonard  Apr 01, 2019 ]
Will this work with my factory alpine system in my 2012 ram 1500?
[ Jesse  Mar 12, 2019 ]
2 answers
Yes, it has both low level and speaker inputs. I tapped into the rear speakers on my F150, through the wiring harness, and it works great. Different genres of music will need to be adjusted for the bass outputs, but that is easy with the wired remote. I found the wiring harness colors for the rear speakers on the internet.
[ Dennis  Mar 12, 2019 ]
As long as you have one sub out rca then yes. This depends on your harness. I used a splitter to keep my stock sub in the loop. This sub is very good at getting the low frequencies that stock just doesn't touch.
[ Alexander  Mar 12, 2019 ]
Can you use one bass controller for two of these?
[ Matthew  Feb 14, 2019 ]
2 answers
Not sure I only bought 1. Not sure if even possible
[ JASON  Feb 14, 2019 ]
I do not have a concrete answer on that. I would venture to say that if you bridge the two amps your bridging your power. Each amp would provide the sound that you dial into it on the side panel. I'm almost positive that each remote bass boost link would function independently. Rockford is awesome at answering specific questions like that, so I've heard from my friends that run a more complex system than what I have.
[ NATHAN  Feb 14, 2019 ]
I'm trying to install this on the back panel (sideways)on my 1994 f150 and this doesn't come with a sub mount or straps to keep it secure. Any recommendations on how to properly mount this sub?
[ josh  Aug 06, 2018 ]
1 answer
i mounted mine to a piece of a wooden shelf and then bolted the wood panel to the floor. you could do the same thing or screw the panel to the back sheet metal.
[ Leo  Aug 06, 2018 ]
Can these fit under my backseats in my 2002 Jeep Grand Cherokee?
[ Nicholas  May 17, 2018 ]
2 answers
I have no idea. I do know that it will not fit under my 2009 Subaru Outback seats. I believe the thickness of the unit is listed at 2-7/8 inches. I suggest measuring something and cutting it to that length (e.g. pen, stick, match, etc) and then seeing if the object will stand upright under your Jeep seats.
[ Roy  May 19, 2018 ]
If you've got six inches to spare then these should fit quite nicely.
[ brian  May 17, 2018 ]
If my Kenwood head unit has subwoofer level control would I need to use the "PLC" level control that comes with it?
[ JTurner6972  Apr 20, 2018 ]
1 answer
I'm pretty sure you can used and is goto be increased the power a lot on your subwoofer, that's results I have on my previous pioneer DVD head unit on my Nissan, has a small subwoofer and the power was increased almost twice as I have before, I have to mention to have to replace the speakers on the doors.
[ Oscar  Apr 20, 2018 ]
Maybe a ridiculous question, but does this come with a fuse installed or do I need to purchase one?
[ C  Mar 26, 2018 ]
9 answers
You do not need to buy any fuses for this sub it comes with them already included the 10 amp fuse is already in the fuse holder
[ Zachary  Apr 03, 2018 ]
It comes with everything you need.
[ Bryan  Apr 03, 2018 ]
yes it has a fuse
[ RANDY  Apr 03, 2018 ]
A fuse is supplied with this you do not need an additional installation kit.
[ Heather  Apr 03, 2018 ]
I can't remember but I would go ahead and get two fuses so you have extra ones on hand if you ever need one. I always keep extra fuses of all sizes in my vehicle anyway
[ Jeff  Apr 03, 2018 ]
Yes it did include the fuse in the fuse holder.
[ John  Apr 03, 2018 ]
I would purchase one, I did.
[ Lumpy  Apr 03, 2018 ]
Fuse is included and already installed. So far happy with this product!
[ Aaron  Apr 03, 2018 ]
It came with one.
[ WILLIAM C  Apr 03, 2018 ]
Has anyone installed this in a jeep cj?
[ Donnie  Jul 03, 2017 ]
1 answer
We installed ours in a '91 Chevrolet 1500 pickup. Having absolutely no clue what we needed to order to make it fit we solely relied on Crutchfield's team of experts. Received the order with instructions and everything fit as promised. Have shopped here a few times just because of the expertise of their customer support.
[ Tonya  Jul 05, 2017 ]
How easy is removal? Want to install in a Chevy Avalanche under back seat. However if I need to lower the midgate, think I may need to temporary remove from time to time. Once all the wires are run, can I simply unplug everything to remove, and then re-hook up when done?
[ Doug  Feb 07, 2017 ]
2 answers
Should be pretty easy to remove, even if you run speaker wires instead of aux cables, there is an adapter with an plug in for easy removal.
[ BRENDAN  Feb 09, 2017 ]
Absolutely, it will only take a few minutes
[ DORAN L  Feb 08, 2017 ]
I just got this sub this week had it installed and it worked great until I drove up to my home. I got it installed at about 7000 ft and I live at 8500 ft. When I drive back to my house it starts rattling really bad. Then when I get home and leave my car off for awhile it works fine after that. I have had all the wires checked and still no resolution as to what it maybe. Any ideas here?
[ Jeremy  Jan 17, 2017 ]
1 answer
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings/connections on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: Or try our online support center:
[ Kenny  Jan 17, 2017 ]  Staff
Do subwoofer amps use a different rating standard? Asking because I see this unit has a 10 amp fuse but is rated at 150 watts RMS. How is that even possible when V x A = W ? At an overly optimistic 14.4 volt power source (13.8 volts typically) that yields a max of 144 watts at 100% efficiency. More typically at 13.8 volts and 80% efficiency it's a 110 watt output. I actually have one of these and it works and sounds great but it not a 150 watt amp.
[ Mark  Jan 08, 2017 ]
3 answers
I believe that the unit is rated for a fuse up to 30 amps. 30 A x13.8 V x 80% = 330W
[ David  Oct 25, 2017 ]
100% efficiency isn't possible. I owned one and blew it's circuitry by asking "too much". Not just a own fuse. It's actual audible "crossover is nowhere near the low it professed.
[ James  Jan 09, 2017 ]
Look man the thing sounds good. I was not looking for anything crazy. You wanna get into numbers take it to a pro. Lol
[ keith  Jan 08, 2017 ]
My head unit only has one sub preamp output. Is this something I can use a Y-adapter for with the PS-8 without sacrificing any sound quality?
[ Eric  Jun 19, 2016 ]
2 answers
Hello Eric, it sounds to me like you want to hook up more than one subwoofer amp off your head unit??
[ Timothy  Jul 03, 2016 ]
I'm confused about why you would need a Y-adapter. Just run the sub out to the PS-8. I have mine plugged into the sub output on my equalizer. The equalizer splits out the sub vs non-sub frequencies and I need something to put the bass back into my system. After a little tweaking, it sounds great.
[ Greg  Jun 21, 2016 ]
What gauge power wire does it come with?
[ Micah  Jun 04, 2016 ]
1 answer
Thanks for your question. It comes with 17 ft of 10-gauge power wire with in-line fuse holder. You'll find this information on the product page details tab under "What's in the box". Hope that helps.
[ Kenny  Jun 04, 2016 ]  Staff
Has anyone combined this unit with a factory Bose system in a GMC truck?
[ Ken  May 22, 2016 ]
2 answers
To answer your question, yes (Chevy Silverado, same factory Bose). But I offer this advice, do not expect this unit to be "loud". BUT, it is a great unit to add to the factory bass that the stock Bose speakers produce by themselves. However, I found that placement is everything. Under the driver seat is a great place to start; if your truck is an extended cab, under the back seat on the driver side is a good place too. Depending on how handy you are, best place I found was behind the back seat in my extended cab, mounted flush against the back of the cab. I hope this helps, enjoy the music.
[ Jerrod  May 24, 2016 ]
I don't have the factory Bose system. Trust me get it! You won't hear you coming down the street but it sounds fantastic inside the truck. My wife's not a huge bass fan but says I was right to install this unit.
[ RODNEY  May 23, 2016 ]
Which 6.5" speakers work best with this subwoofer ?
[ Msororaji  May 01, 2016 ]
4 answers
I installed Fosgate speakers in the front and rear along with the sub and am very happy with them. The key is to get the ones that fit your vehicle
[ Michael  May 03, 2016 ]
Polk audio mm651 they are amazing
[ connie  May 03, 2016 ]
Focal. They are amazing
[ keith  May 03, 2016 ]
Am using infinity but the Rockford Fosgate punch should be fine. The sub is awesome
[ DORAN L  May 02, 2016 ]
How do I securely mount this under a seat?
[ Kevin  Mar 06, 2016 ]
1 answer
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through installation of the product . Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: Or try our online support center:
[ Kenny  Mar 08, 2016 ]  Staff
I am wondering if this fits under the seat of a 2006 Nissan Murano?
[ Edwin  Feb 28, 2016 ]
1 answer
We don't have the measurements of the space under the seat in your Murano. We did measure the rear cargo area and there is enough room for it to go there. If it helps any, the measurements on this powered subwoofer are 14-1/2" wide x 9-1/2" deep x 3-3/8" tall. I hope that helps! My Bio:
[ Paul  Mar 02, 2016 ]  Staff
Can this be wired through the pass through of another amp?
[ Perry007  Feb 26, 2016 ]
1 answer
It likely will work with the pass through of the other amp for signal, but that will depend on the output of the other amp. As long as the pass through is full range you should be good to go. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat to confirm. They'll be able to take a look at your current amp, and make sure this one will work with it.
[ Jeff  Feb 29, 2016 ]  Staff
Which receivers work best with Rockford Fosgate ps8?
[ Aaron  Feb 18, 2016 ]
2 answers
I have a kenwood I bought from crutch field . They have great sub controls to adjust the lower freq. to your taste in music . My radio was 159.00 not sure of exact model kenwood
[ Bruce  Feb 18, 2016 ]
I have a pioneer receiver and it works great
[ GaryA  Feb 18, 2016 ]
I have a 2013 Scion FRS , will this fit under my passenger seat?
[ Rafael  Feb 07, 2016 ]
4 answers
You'll just need to look at the dimensions of the PS-8 and then check under your seat. I don't know anything about the Scion. You might have to pull the seat if there is room under it but you can't slide it through the front or back.
[ Kevin  Feb 09, 2016 ]
I don't know because it did not fit under the seat of my 2011 honda civic but it sounds great. I know that it would fit under my Honda Accord seat
[ DORAN L  Feb 08, 2016 ]
This unit isn't too tall, but I do not have any idea what amount of space that you have. I would call Crutchfield for an answer.
[ Michael  Feb 08, 2016 ]
I installed this in m 2015 Honda Fit, it wouldn't fit under my passenger seat and had to put it in the back. Best thing to do would be to make a duplicate out of cardboard using the dimensions listed and test fit it in different spots.
[ Walter  Feb 08, 2016 ]
Will this fit under the seat of my Yukon Denali (either front passenger seat or 2nd row bucket seat?
[ Chris  Jul 30, 2015 ]
1 answer
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
[ Krissy  Jul 31, 2015 ]  Staff
can the self contained PS-8 be wired to a cord that turns off with the key, or does it have to go directly to the battery?
[ mike  Jul 03, 2015 ]
2 answers
The red power wire should be wired directly to the battery with the inline fuse to provide high current and to avoid noise and interference from the rest of the car's electrical system. The blue wire is for the remote turn-on and ususally connected to the head unit. Check the installation instructions for additional options for the remote turn on. IF the PS-8 power wire is switched, sound quality may be compromised.
[ John  Jul 06, 2015 ]
Wire it direct to the same (+) as the deck, black to a local ground. Connect blue out of the deck to blue on the PS-8 wire harness. It'll kick on/off with the deck, which is theoretically wired to the ignition.
[ Edwin  Jul 05, 2015 ]

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