Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In
  1. Home
  2. Polk Audio Store
  3. Discontinued Polk Audio Car Audio & Electronics
  4. Discontinued Polk Audio Car Speakers
  5. Discontinued Polk Audio 5.25" Component Speakers

Discontinued Polk Audio 5.25" Component Speakers

Balance of size and sonic performance in Polk Audio 5.25" Component Speakers.

Exclamation Icon It’s a no-brainer.
 Get your speakers here.

Install kit discounts · Guaranteed fit · Full warranty
Filters
Polk Audio ✕
Show products that do not fit ✕
Clear Filters
Reset Done
Price Range
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
  Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Gear Icon Find speakers that fit. Set your vehicle.
  • Mounting adapter brackets
  • Harness to avoid cutting vehicle wires

Shop the Category

filter-icon Filters & Sort
You are currently viewing discontinued products.

Dodge Ram Truck 1500 2002-2008 Factory Speaker Upgrade DXi691, DXi521, 72-6514

Polk Audio Plug and Play Installation, No Cutting Required

DXi691_DXi5212_MET-726514-2X big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Dodge Ram Truck 1500 2002-2008 Factory Speaker Upgrade DXi691, DXi521, 72-6514

Polk Audio Plug and Play Installation, No Cutting Required

• Polk Audio DXi691 + DXi521
• Dynamic Balance polypropylene cones
• 4 Ohm Impedance
• Sensitivity: 93 dB
• Speaker Harnesses Included • Quick and easy installation • No cutting into original wires needed • Plugs directly into factory harness

checkmark icon Confirm fitment. Set your vehicle.
97

• Polk Audio DXi691 + DXi521
• Dynamic Balance polypropylene cones
• 4 Ohm Impedance
• Sensitivity: 93 dB
• Speaker Harnesses Included • Quick and easy installation • No cutting into original wires needed • Plugs directly into factory harness

Polk Audio db525

5-1/4" 2-Way db Series Marine Certified Component Car Speaker System

';insertAfter(target,newItem);}var exclusive=document.getElementsByClassName("sonicExclusiveIcon").length;var sale=document.getElementsByClassName("productSaleBanner").length;if(sale == 0 && exclusive ==0){addCertified();}
db5251 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Polk Audio db525

5-1/4" 2-Way db Series Marine Certified Component Car Speaker System

• Peak Power: 250W
• RMS Power: 100W
• 25mm liquid-cooled silk/polymer composite dome
• 12 dB / octave Butterworth outboard crossover
• Pole Plate Heat Sink
• Frequency Response: 53-23,000 Hz

Promo Savings Icon
';insertAfter(target,newItem);}var exclusive=document.getElementsByClassName("sonicExclusiveIcon").length;var sale=document.getElementsByClassName("productSaleBanner").length;if(sale == 0 && exclusive ==0){addCertified();}
checkmark icon Confirm fitment. Set your vehicle.
21

• Peak Power: 250W
• RMS Power: 100W
• 25mm liquid-cooled silk/polymer composite dome
• 12 dB / octave Butterworth outboard crossover
• Pole Plate Heat Sink
• Frequency Response: 53-23,000 Hz

Polk Audio MOMO MMC5250

5-1/4" 2-way MOMO Series Component System (MMC 5250)

MMC5250 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Polk Audio MOMO MMC5250

5-1/4" 2-way MOMO Series Component System (MMC 5250)

5-1/4" 2-Way MOMO Series Component System • 100W RMS • 300W Peak • airtight rubber surround • cast aluminum basket • outboard 2-way crossover • suitable for marine use • sensitivity: 89dB

checkmark icon Confirm fitment. Set your vehicle.
3

5-1/4" 2-Way MOMO Series Component System • 100W RMS • 300W Peak • airtight rubber surround • cast aluminum basket • outboard 2-way crossover • suitable for marine use • sensitivity: 89dB

Polk Audio SR5250

5-1/4" 2-way Signature Reference (SR) Series Component Speakers System

SR5250 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Polk Audio SR5250

5-1/4" 2-way Signature Reference (SR) Series Component Speakers System

SR Series 5.25" 2-way Component System • 100W RMS • 200W Peak • aluminum woofer basket • butyl rubber surround • Zobel crossover network • sensitivity: 90dB

checkmark icon Confirm fitment. Set your vehicle.
3

SR Series 5.25" 2-way Component System • 100W RMS • 200W Peak • aluminum woofer basket • butyl rubber surround • Zobel crossover network • sensitivity: 90dB

Polk Audio DB5252 and FREE NVX IEWR2 Ear Buds Headphones

600W Peak 5.25" DB+ Series 2-way Marine/UTV Component Speakers for Car, Powersports or Marine Audio

DB5252, IEWR2 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Polk Audio DB5252 and FREE NVX IEWR2 Ear Buds Headphones

600W Peak 5.25" DB+ Series 2-way Marine/UTV Component Speakers for Car, Powersports or Marine Audio

• 300 Watts Max Each, 100 Watts RMS Each
• 0.75" shallow tweeter design
• Polypropylene UV tolerant cone
• 4 Ohm Impedance
• Sensitivity: 91dB
• Mounting Depth: 1.77"
• IP65 rated

checkmark icon Confirm fitment. Set your vehicle.
20

• 300 Watts Max Each, 100 Watts RMS Each
• 0.75" shallow tweeter design
• Polypropylene UV tolerant cone
• 4 Ohm Impedance
• Sensitivity: 91dB
• Mounting Depth: 1.77"
• IP65 rated

 
    Clear all

    Polk Audio 5.25" Component Speakers Information

    5.25 inch component speakers from Polk Audio are an excellent choice for crystal clear music. Replace those factory speakers and quickly notice the difference in sound and quality of your music and audio. When you are ready for new 5.25" component speakers, think of Polk Audio.
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage

    Add vehicle
    2 | Make
    3 | Model
    Why Use a Vehicle Fit Guide?
    Where to find vehicle info | Shop without vehicle
    Whoa! Slow down. Add your details below!
    additional information required
    Add vehicle details to confirm fitment
    Ignore fitment details
    Find stereos and more that work -- fast.
    2 | Make
    3 | Model
    Remove

    Can't find your vehicle? Click here and we'll help.

    Where to find vehicle info

    Go to Fitment

    Didn't find your car?

    Submit your details and we'll help!
    Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon
    Back

    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

    Back
    Track your order
    Call our experts
    Support Center
    Return & Exchanges
    Follow on Instagram Instagram logo
    Subscribe on YouTube YouTube logo