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Kicker 48CWRT84

CompRT Series shallow-mount 8" subwoofer with dual 4-ohm voice coils

Item # 20648CT84

Kicker's CompRT shallow-mount subs let you squeeze big bass into difficult-to-fit installations.

Kicker's CompRT shallow-mount subs let you squeeze big bass into difficult-to-fit installations.

Item # 20648CT84

In stock

$169.95 Sale: -$16.99 off

$152.96 each

Other options

About the Kicker 48CWRT84

Big sound from a small sub

If you're looking for bass for a tight space, Kicker designed their CompRT subs with compact cars, pickup trucks, and ATVs in mind. The low-profile 48CWRT84 8" subwoofer performs just like a full-size sub, but without killing all your cargo space. This high-performance CompRT sub stands less than 3" tall, so your installation options are wide open. Kicker has redesigned the forced-air cooling system, so this sub will run cooler when you drive it hard (and you know you will).

Big sound from a small sub

If you're looking for bass for a tight space, Kicker designed their CompRT subs with compact cars, pickup trucks, and ATVs in mind. The low-profile 48CWRT84 8" subwoofer performs just like a full-size sub, but without killing all your cargo space. This high-performance CompRT sub stands less than 3" tall, so your installation options are wide open. Kicker has redesigned the forced-air cooling system, so this sub will run cooler when you drive it hard (and you know you will).

Made to bring the boom

The 48CWRT84 comes equipped with a rigid injection-molded polypropylene cone that won't flex and cause distortion while you're cranking the bass. Its rubber surround will last through years of heavy use, combining with a special-design back and top plate to give you more excursion (which equals more bass) than other skinny subs.   

Made to fit many systems

This sub handles up to 300 watts RMS so make sure you've got a solid amp to power it. You can wire the dual voice coils for either 2- or 8-ohm total impedance, giving you more wiring options when setting up your system. This versatile sub sounds great in sealed or ported enclosures.

READ LESS

Product highlights:

  • 8" shallow-mount subwoofer with dual 4-ohm voice coils
  • injection-molded polypropylene cone
  • rubber surround
  • power handling: 300 watts RMS (600 watts peak)
  • frequency response: 30-500 Hz
  • sensitivity: 81.8 dB
  • top-mount depth: 2.7125"
  • sealed box volume: 0.2 - 1.0 cu. ft.
  • ported box volume: 0.8 - 1.2 cu. ft.
  • grille not included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # 48CWRT84

What's in the box:

  • One 8" Dual 4-ohm voice coil subwoofer
  • Kicker logo sticker
  • 4 Adhesive backed screw covers
  • Manual (English/ Spanish/ German/ French)
  • Screw cover installation instructions
  • Template on box

Customer reviews

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Kicker 48CWRT84 reviews

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7 reviews

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More details on the Kicker 48CWRT84

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Features

Dual Voice Coils: This woofer features dual 4Ω voice coils, offering wiring flexibility. When the voice coils are wired in parallel, the woofer presents a 2Ω load. When the voice coils are wired in series, the woofer presents an 8Ω load.

Shallow-Mount: Kicker's CompRT series is designed to minimize depth, giving you subwoofer options where standard enclosures don't fit.

All-Weather: Although not marine certified, Kicker describes the CompRT series as weatherproof.

Cooling: Kicker engineers developed a Forced Air Cooling system, using the motor structure to pull air across the voice coils, helping the sub run up to 20% cooler than the previous model.

Sealed Enclosures: Sealed enclosures provide the most control over a woofer and provide accurate sonic reproduction, making them suitable to all types of music. Kicker recommends sealed enclosures from 0.2 ft³ to 1.0 ft³.

Vented Enclosures: Vented (or ported) enclosures typically provide better overall efficiency than sealed so they are suitable for use with smaller amplifiers, giving you more bass output from a given amount of power. Kicker recommends the following ported enclosures:

  • Minimum Enclosure Volume: 0.8 ft³ with an 8" x 1½" x 20¾" slot port
  • Maximum Enclosure Volume: 1.2 ft³ with an 8" x 2" x 19⅛" slot port

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Customer Q&A

43 questions already asked

Q
I have an 06 mustang, will these work to replace my factory front lower door subs?
[ John  Jun 07, 2021 ]
2 answers
A
John, Those are not 6 1/2 subwoofers.you may need 6 1/2 speakers to replace your lower front door
[ RAVELLA  Jun 07, 2021 ]
A
If they the same size yes u can use these without box
[ Alex  Jun 07, 2021 ]
Q
I have a 2002 Chevy suburban w a 8" factory sub in back. This will fit but will it require an amplifier to work? If so, what size amp is needed?
[ Mike  Mar 30, 2021 ]
3 answers
A
No the factory amp well wrk just fine no need to change it
[ STEVEN  Mar 31, 2021 ]
A
I just installed this same amp in my Scion XB, and I'm running a 1 channel 500 watt amp. The minimum is 300 watt, but like to adjust my frequencies depending on my genre of music for the power so I like a little more ump with my bump.
[ REGINALD  Mar 31, 2021 ]
A
I would measure what the ohms are on the factory sub. I purchased the 2 ohm DVC's and the 4 ohm DVC's. The 2 ohm DVC's measured at 1 ohm per coil and the 4 ohm DVC's measured at 2 ohms. I currently returned the 2 ohm model and swapped them for the 4 ohm model. I have one installed in the factory box until my dual box comes. I am pushing with a Alpine 600 watt rms Amp. I tried running mine off the factory Amp and it wasn't enough power.
[ MARC D  Mar 31, 2021 ]
Q
I have an 06 mustang, will these work to replace my factory front lower door subs?
[ John  Jun 07, 2021 ]
2 answers
A
John, Those are not 6 1/2 subwoofers.you may need 6 1/2 speakers to replace your lower front door
[ RAVELLA  Jun 07, 2021 ]
A
If they the same size yes u can use these without box
[ Alex  Jun 07, 2021 ]
Q
I have a 2002 Chevy suburban w a 8" factory sub in back. This will fit but will it require an amplifier to work? If so, what size amp is needed?
[ Mike  Mar 30, 2021 ]
3 answers
A
No the factory amp well wrk just fine no need to change it
[ STEVEN  Mar 31, 2021 ]
A
I just installed this same amp in my Scion XB, and I'm running a 1 channel 500 watt amp. The minimum is 300 watt, but like to adjust my frequencies depending on my genre of music for the power so I like a little more ump with my bump.
[ REGINALD  Mar 31, 2021 ]
A
I would measure what the ohms are on the factory sub. I purchased the 2 ohm DVC's and the 4 ohm DVC's. The 2 ohm DVC's measured at 1 ohm per coil and the 4 ohm DVC's measured at 2 ohms. I currently returned the 2 ohm model and swapped them for the 4 ohm model. I have one installed in the factory box until my dual box comes. I am pushing with a Alpine 600 watt rms Amp. I tried running mine off the factory Amp and it wasn't enough power.
[ MARC D  Mar 31, 2021 ]
Q
Is this a plug and play ready sub for 2009 Jeep Wrangler Unlimited that has a factory sub?
[ Steve  Jul 28, 2021 ]
1 answer
A
I swapped this for the factory sub in F-150 2006, and kept the factory amp. Very easy to connect.
[ Ryan's  Jul 28, 2021 ]
Q
I have an 06 mustang, will these work to replace my factory front lower door subs?
[ John  Jun 07, 2021 ]
2 answers
A
John, Those are not 6 1/2 subwoofers.you may need 6 1/2 speakers to replace your lower front door
[ RAVELLA  Jun 07, 2021 ]
A
If they the same size yes u can use these without box
[ Alex  Jun 07, 2021 ]
Q
I have a 2002 Chevy suburban w a 8" factory sub in back. This will fit but will it require an amplifier to work? If so, what size amp is needed?
[ Mike  Mar 30, 2021 ]
4 answers
A
No the factory amp well wrk just fine no need to change it
[ STEVEN  Mar 31, 2021 ]
A
I just installed this same amp in my Scion XB, and I'm running a 1 channel 500 watt amp. The minimum is 300 watt, but like to adjust my frequencies depending on my genre of music for the power so I like a little more ump with my bump.
[ REGINALD  Mar 31, 2021 ]
A
I would measure what the ohms are on the factory sub. I purchased the 2 ohm DVC's and the 4 ohm DVC's. The 2 ohm DVC's measured at 1 ohm per coil and the 4 ohm DVC's measured at 2 ohms. I currently returned the 2 ohm model and swapped them for the 4 ohm model. I have one installed in the factory box until my dual box comes. I am pushing with a Alpine 600 watt rms Amp. I tried running mine off the factory Amp and it wasn't enough power.
[ MARC D  Mar 31, 2021 ]
A
It should fit but would suggest a 300 watt amp
[ PETER  Mar 30, 2021 ]
Q
Is this a plug and play ready sub for 2009 Jeep Wrangler Unlimited that has a factory sub?
[ Steve  Jul 28, 2021 ]
1 answer
A
I swapped this for the factory sub in F-150 2006, and kept the factory amp. Very easy to connect.
[ Ryan's  Jul 28, 2021 ]
Q
I have an 06 mustang, will these work to replace my factory front lower door subs?
[ John  Jun 07, 2021 ]
2 answers
A
John, Those are not 6 1/2 subwoofers.you may need 6 1/2 speakers to replace your lower front door
[ RAVELLA  Jun 07, 2021 ]
A
If they the same size yes u can use these without box
[ Alex  Jun 07, 2021 ]
Q
I have a 2002 Chevy suburban w a 8" factory sub in back. This will fit but will it require an amplifier to work? If so, what size amp is needed?
[ Mike  Mar 30, 2021 ]
4 answers
A
No the factory amp well wrk just fine no need to change it
[ STEVEN  Mar 31, 2021 ]
A
I just installed this same amp in my Scion XB, and I'm running a 1 channel 500 watt amp. The minimum is 300 watt, but like to adjust my frequencies depending on my genre of music for the power so I like a little more ump with my bump.
[ REGINALD  Mar 31, 2021 ]
A
I would measure what the ohms are on the factory sub. I purchased the 2 ohm DVC's and the 4 ohm DVC's. The 2 ohm DVC's measured at 1 ohm per coil and the 4 ohm DVC's measured at 2 ohms. I currently returned the 2 ohm model and swapped them for the 4 ohm model. I have one installed in the factory box until my dual box comes. I am pushing with a Alpine 600 watt rms Amp. I tried running mine off the factory Amp and it wasn't enough power.
[ MARC D  Mar 31, 2021 ]
A
It should fit but would suggest a 300 watt amp
[ PETER  Mar 30, 2021 ]
Q
Is this a plug and play ready sub for 2009 Jeep Wrangler Unlimited that has a factory sub?
[ Steve  Jul 28, 2021 ]
1 answer
A
I swapped this for the factory sub in F-150 2006, and kept the factory amp. Very easy to connect.
[ Ryan's  Jul 28, 2021 ]
Q
I have an 06 mustang, will these work to replace my factory front lower door subs?
[ John  Jun 07, 2021 ]
2 answers
A
John, Those are not 6 1/2 subwoofers.you may need 6 1/2 speakers to replace your lower front door
[ RAVELLA  Jun 07, 2021 ]
A
If they the same size yes u can use these without box
[ Alex  Jun 07, 2021 ]
Q
I have a 2002 Chevy suburban w a 8" factory sub in back. This will fit but will it require an amplifier to work? If so, what size amp is needed?
[ Mike  Mar 30, 2021 ]
4 answers
A
No the factory amp well wrk just fine no need to change it
[ STEVEN  Mar 31, 2021 ]
A
I just installed this same amp in my Scion XB, and I'm running a 1 channel 500 watt amp. The minimum is 300 watt, but like to adjust my frequencies depending on my genre of music for the power so I like a little more ump with my bump.
[ REGINALD  Mar 31, 2021 ]
A
I would measure what the ohms are on the factory sub. I purchased the 2 ohm DVC's and the 4 ohm DVC's. The 2 ohm DVC's measured at 1 ohm per coil and the 4 ohm DVC's measured at 2 ohms. I currently returned the 2 ohm model and swapped them for the 4 ohm model. I have one installed in the factory box until my dual box comes. I am pushing with a Alpine 600 watt rms Amp. I tried running mine off the factory Amp and it wasn't enough power.
[ MARC D  Mar 31, 2021 ]
A
It should fit but would suggest a 300 watt amp
[ PETER  Mar 30, 2021 ]
Q
Is this a plug and play ready sub for 2009 Jeep Wrangler Unlimited that has a factory sub?
[ Steve  Jul 28, 2021 ]
1 answer
A
I swapped this for the factory sub in F-150 2006, and kept the factory amp. Very easy to connect.
[ Ryan's  Jul 28, 2021 ]
Q
I have an 06 mustang, will these work to replace my factory front lower door subs?
[ John  Jun 07, 2021 ]
2 answers
A
John, Those are not 6 1/2 subwoofers.you may need 6 1/2 speakers to replace your lower front door
[ RAVELLA  Jun 07, 2021 ]
A
If they the same size yes u can use these without box
[ Alex  Jun 07, 2021 ]
Q
I have a 2002 Chevy suburban w a 8" factory sub in back. This will fit but will it require an amplifier to work? If so, what size amp is needed?
[ Mike  Mar 30, 2021 ]
4 answers
A
No the factory amp well wrk just fine no need to change it
[ STEVEN  Mar 31, 2021 ]
A
I just installed this same amp in my Scion XB, and I'm running a 1 channel 500 watt amp. The minimum is 300 watt, but like to adjust my frequencies depending on my genre of music for the power so I like a little more ump with my bump.
[ REGINALD  Mar 31, 2021 ]
A
I would measure what the ohms are on the factory sub. I purchased the 2 ohm DVC's and the 4 ohm DVC's. The 2 ohm DVC's measured at 1 ohm per coil and the 4 ohm DVC's measured at 2 ohms. I currently returned the 2 ohm model and swapped them for the 4 ohm model. I have one installed in the factory box until my dual box comes. I am pushing with a Alpine 600 watt rms Amp. I tried running mine off the factory Amp and it wasn't enough power.
[ MARC D  Mar 31, 2021 ]
A
It should fit but would suggest a 300 watt amp
[ PETER  Mar 30, 2021 ]
Q
Is this a plug and play ready sub for 2009 Jeep Wrangler Unlimited that has a factory sub?
[ Steve  Jul 28, 2021 ]
1 answer
A
I swapped this for the factory sub in F-150 2006, and kept the factory amp. Very easy to connect.
[ Ryan's  Jul 28, 2021 ]
Q
I have an 06 mustang, will these work to replace my factory front lower door subs?
[ John  Jun 07, 2021 ]
2 answers
A
John, Those are not 6 1/2 subwoofers.you may need 6 1/2 speakers to replace your lower front door
[ RAVELLA  Jun 07, 2021 ]
A
If they the same size yes u can use these without box
[ Alex  Jun 07, 2021 ]
Q
I have a 2002 Chevy suburban w a 8" factory sub in back. This will fit but will it require an amplifier to work? If so, what size amp is needed?
[ Mike  Mar 30, 2021 ]
4 answers
A
No the factory amp well wrk just fine no need to change it
[ STEVEN  Mar 31, 2021 ]
A
I just installed this same amp in my Scion XB, and I'm running a 1 channel 500 watt amp. The minimum is 300 watt, but like to adjust my frequencies depending on my genre of music for the power so I like a little more ump with my bump.
[ REGINALD  Mar 31, 2021 ]
A
I would measure what the ohms are on the factory sub. I purchased the 2 ohm DVC's and the 4 ohm DVC's. The 2 ohm DVC's measured at 1 ohm per coil and the 4 ohm DVC's measured at 2 ohms. I currently returned the 2 ohm model and swapped them for the 4 ohm model. I have one installed in the factory box until my dual box comes. I am pushing with a Alpine 600 watt rms Amp. I tried running mine off the factory Amp and it wasn't enough power.
[ MARC D  Mar 31, 2021 ]
A
It should fit but would suggest a 300 watt amp
[ PETER  Mar 30, 2021 ]
Q
Is this a plug and play ready sub for 2009 Jeep Wrangler Unlimited that has a factory sub?
[ Steve  Jul 28, 2021 ]
1 answer
A
I swapped this for the factory sub in F-150 2006, and kept the factory amp. Very easy to connect.
[ Ryan's  Jul 28, 2021 ]
Q
I have an 06 mustang, will these work to replace my factory front lower door subs?
[ John  Jun 07, 2021 ]
2 answers
A
John, Those are not 6 1/2 subwoofers.you may need 6 1/2 speakers to replace your lower front door
[ RAVELLA  Jun 07, 2021 ]
A
If they the same size yes u can use these without box
[ Alex  Jun 07, 2021 ]
Q
I have a 2002 Chevy suburban w a 8" factory sub in back. This will fit but will it require an amplifier to work? If so, what size amp is needed?
[ Mike  Mar 30, 2021 ]
4 answers
A
No the factory amp well wrk just fine no need to change it
[ STEVEN  Mar 31, 2021 ]
A
I just installed this same amp in my Scion XB, and I'm running a 1 channel 500 watt amp. The minimum is 300 watt, but like to adjust my frequencies depending on my genre of music for the power so I like a little more ump with my bump.
[ REGINALD  Mar 31, 2021 ]
A
I would measure what the ohms are on the factory sub. I purchased the 2 ohm DVC's and the 4 ohm DVC's. The 2 ohm DVC's measured at 1 ohm per coil and the 4 ohm DVC's measured at 2 ohms. I currently returned the 2 ohm model and swapped them for the 4 ohm model. I have one installed in the factory box until my dual box comes. I am pushing with a Alpine 600 watt rms Amp. I tried running mine off the factory Amp and it wasn't enough power.
[ MARC D  Mar 31, 2021 ]
A
It should fit but would suggest a 300 watt amp
[ PETER  Mar 30, 2021 ]
Q
Is this a plug and play ready sub for 2009 Jeep Wrangler Unlimited that has a factory sub?
[ Steve  Jul 28, 2021 ]
1 answer
A
I swapped this for the factory sub in F-150 2006, and kept the factory amp. Very easy to connect.
[ Ryan's  Jul 28, 2021 ]
Q
I have an 06 mustang, will these work to replace my factory front lower door subs?
[ John  Jun 07, 2021 ]
2 answers
A
John, Those are not 6 1/2 subwoofers.you may need 6 1/2 speakers to replace your lower front door
[ RAVELLA  Jun 07, 2021 ]
A
If they the same size yes u can use these without box
[ Alex  Jun 07, 2021 ]
Q
I have a 2002 Chevy suburban w a 8" factory sub in back. This will fit but will it require an amplifier to work? If so, what size amp is needed?
[ Mike  Mar 30, 2021 ]
4 answers
A
No the factory amp well wrk just fine no need to change it
[ STEVEN  Mar 31, 2021 ]
A
I just installed this same amp in my Scion XB, and I'm running a 1 channel 500 watt amp. The minimum is 300 watt, but like to adjust my frequencies depending on my genre of music for the power so I like a little more ump with my bump.
[ REGINALD  Mar 31, 2021 ]
A
I would measure what the ohms are on the factory sub. I purchased the 2 ohm DVC's and the 4 ohm DVC's. The 2 ohm DVC's measured at 1 ohm per coil and the 4 ohm DVC's measured at 2 ohms. I currently returned the 2 ohm model and swapped them for the 4 ohm model. I have one installed in the factory box until my dual box comes. I am pushing with a Alpine 600 watt rms Amp. I tried running mine off the factory Amp and it wasn't enough power.
[ MARC D  Mar 31, 2021 ]
A
It should fit but would suggest a 300 watt amp
[ PETER  Mar 30, 2021 ]
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