Search  for anything...
KICKER

KICKER 51PTRTP12 - TRTP 12" 500w Powered Down Firing Loaded Subwoofer Enclosure | 500 watt built-in amp, deep car bass from a compact footprint, no separate amplifier needed, plug-in system upgrade

  • Based on 55 reviews
Condition: New
Checking for the best price...
$549.99 Why this price?
Labor Day Deal · 17% off was $659.95

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: 20 left in stock
Fulfilled by Amazon
Arrives Saturday, Sep 12
Order within 10 hours and 7 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Model: 51PTRTP12


Features

  • Compact, factory-tuned enclosure for tight locations to fit many trucks and SUVs
  • Two models available 12-inch sub with 500-watt amp, or a 10-inch sub with 400-watt amp
  • Amp is built-in and power-matched for hard-hitting bass
  • Easily integrates with factory system
  • Down-firing for ultimate driver protection

Description

PTRTP Powered Down-Fire Enclosures are loaded with a passive reFLEX subwoofer and the KICKER CompRT active thin sub, delivering incredible bass without needing lots of space or an amplifier. Place them under a truck seat, in the cargo area of your SUV, or in your trunk – perfect for many trucks or SUVs. It includes a built-in, power-matched amp that integrates with most factory systems for hard-hitting bass. This compact, factory-tuned sub enclosure fits tight spaces in trucks and SUVs, delivering powerful bass with easy integration and robust protection. The tough, down-firing enclosure resists stacking weight and provides ultimate driver protection. This compact, factory-tuned subwoofer enclosure fits tight spaces in trucks and SUVs, offering hard-hitting bass with a 10-inch sub (400W amp). Features include easy integration, down-firing for protection, tough internal bracing, extra output, and a remote bass control. This compact, factory-tuned subwoofer enclosure fits tight spaces in trucks and SUVs, offering hard-hitting bass with a 12-inch sub (500W amp). Features include easy integration, down-firing for protection, tough internal bracing, extra output, and a remote bass control.

Brand: KICKER


Speaker Maximum Output Power: 1000 watts


Frequency Response: 25 hertz


Connectivity Technology: RCA


Audio Output Mode: Stereo


Audio Output Mode: Stereo


Mounting Type: Floor Standing


Enclosure Material: Injection-molded polymer


Speaker Type: Subwoofer


Additional Features: Bass Boost


Antenna Location: 12 Volt Automotive


Subwoofer Diameter: 12 inches


Is Waterproof: FALSE


Warranty Type: Limited


Control Method: Remote


Speaker Size: 12 inches


Woofer Diameter: 12 inches


Specific Uses For Product: In-car audio systems


Frequency Response: 25 hertz


Signal-to-Noise Ratio: 90 db


Connectivity Technology: RCA


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: RCA


Power Source: Corded Electric


Audio Driver Type: Dynamic Driver


Audio Driver Size: 12 inches


Number Of Circuits: 1


Brand: KICKER


Model Number: 51PTRTP12


Model Name: 51PTRTP12


Built-In Media: 51PTRTP12


Warranty Description: 1-Year Manufacturer Warranty


Number of Items: 1


UPC: 713034092094


Manufacturer: Kicker


Speaker Maximum Output Power: 1000 watts


Input Voltage: 14.4 volts_of_direct_current


Unit Count: 1 Count


Item Dimensions D x W x H: 15.3"D x 8.3"W x 29.5"H


Item Weight: 34.9 pounds


Compatible Devices: Smartphone, Tablet, MP3 Player, Desktop, Television, Projector, Laptop


Compatible with Vehicle Type: Truck, SUV


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Can’t beat it for the price
Model: 51PTRTP12
Fit perfectly in the back of my Tahoe behind the third row. Sounds great for an all in one unit. Price was competitive and shipping was fast. It’s not gonna rattle your neighbors windows when you drive by but adds low end response to the factory bose speakers I already had.
Reviewed in the United States on February 3, 2026 by RM
    • Great product for my vw Jetta sportwagen
Model: 51PTRTP12
Review Image by Kirill
Review Image by Kirill
I thought long and hard about whether to get the 10-inch or 12-inch, and I went with the 12-inch. This compact subwoofer amazes me every day—it delivers incredibly deep bass that you can adjust to your liking, and it barely takes up any space in the trunk, even though I have a sedan. It’s a very sturdy, high-quality product. I recommend it to anyone who loves great bass but doesn’t want it to take up space in their trunk. ... show more
Reviewed in the United States on October 27, 2025 by Kirill
    • Clean tight bass
Model: 51PTRTP12
Great value, very compact . Have it connected with the kicker line output converter for my 2023 ridgeline . It’s got clean tight bass in an all in one package .
Reviewed in the United States on January 3, 2026 by Michael
    • Should you pull the trigger?
Model: 51PTRTP12
I had a 24 speaker stereo back in the early 90s in a camaro. Rattle the other cars at the stop light setup. But its been over 20 years since I had a stereo like that. I put this unit (500w version) in a stock 4th gen Acura MDX Advance. Here is my opinion - Oh its so easy to only have a few wires - power, ground, control knob, input from stock subwoofer and two knobs to adjust. That's it. Set the gain on the high side and then use the remote knob to dial in the bass based on the song being played. I don't mind fiddling with the gain knob in between songs. When I want to hear the lyrics I keep it turned down. Then for some songs I want to rattle the interior like back in the day and turn that knob up. The fact that this thing can regulate heat inside the enclosure is baffling to me. I had so many heat issues back in the day. You lose the adjustabilty of a seperate amp + crossover with a bunch of adjustability to dial in your system if you are after perfection. But if you already have a car with a great sound system like I do but just wanted more oomph out of the bass. You cannot go wrong with this setup. More than enough to give you a headache or damage your hearing. ... show more
Reviewed in the United States on June 12, 2025 by Mario
    • Still slaps just need to turn the bass knob up a little higher.
Model: 51PTRTP12
Overall this is an awesome package, 12in sub with a built in amp in a very good manageable size. I replaced an older 10in kicker solo L7in a ported enclosure, nothing wrong with is still hitting strong but I just thought I would upgrade to a 12in. I like the downward firing aspect as it clears up some space in the trunk of my car. Only thing is I wish it would hit a little harder but I guess that’s the sacrifice that I made in order to regain some of my trunk space. Don’t get me wrong it’s still hits hard and sounds great but I think my old 10 hit just a little harder. All things considered I would say that I am substantially satisfied with my purchase. ... show more
Reviewed in the United States on April 14, 2026 by Sebastian
    • Plenty of bass for a normal situation
Model: 51PTRTP12
I was about to have a couple subs installed at a custom shop, but decided to do this one myself. Sounds awesome to me. Plenty of bass for 2025 Sierra Denali with Bose. Install was easy but I’m also pretty handy. For the money, I highly recommend this setup.
Reviewed in the United States on October 1, 2025 by Brian Bunch
    • Great sound in a compact design
Model: 51PTRTP12
Review Image by NiteLine
Review Image by NiteLine
I put this is in a 2019 Sequoia and it fits perfect into the cargo area with the 3rd row up. Hits hard and produces great bass with the OEM speakers. The down firing form factor works great in the cargo area and you can also place stuff on top of it. Very happy with this powered sub!
Reviewed in the United States on November 26, 2024 by NiteLine
    • Absolutely amazing for my SUV
Model: 51PTRTP12
Installed in my SUV, LOVE IT!!!!! I researched for days before buying this.
Reviewed in the United States on January 26, 2026 by Z

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...