Buy wisely
Buy wiselyBuy wisely
For RetailersFor developers
  1. Home
  2. Electronics
  3. Audio
  4. Speakers
  5. Kicker KSC504 5.25" 150W 2-Way Car Speakers
Buy wisely

BuyWisely is your one stop price comparison platform, delivering the best deals from over 20,000 online shops. We empower shoppers to make smart, cost-effective choices by offering transparent pricing, price history, and the latest deals across a broad range of products. With BuyWisely, your money goes further.

Popular Shops
JB Hi-Fi
The Good Guys
Harvey Norman
Appliances Online
Bing Lee
Kogan
Amazon
Officeworks
Contact Us
[email protected]
Affiliate Disclosure
Legal Information
Privacy Policy
Logos provided by Logo.dev
© 2026 BuyWisely•Price data powered by pricesAPI.io•Retailers: SellWisely.io

Price comparison

Price data powered by pricesAPI.io

Last updated at 06/09/2026 11:14:47

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64Amazon.com.au

$141.41

Kicker KSC504 5.25" 150W 2-Way Car Speakers

Delivery $7.95

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$148.85

Kicker KSC504 5.25" 150W 2-Way Car Speakers | 2 | Less than 250W | 0713034011026

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ryda.com.au&sz=64RYDA - We'll Negotiate

$148.85

Kicker KSC504 5.25" 150W 2-Way Car Speakers - Live Price Matching

Delivery $7.95

https://www.google.com/s2/favicons?domain=strathfieldcarradios.com.au&sz=64Strathfield Car Radios

$168.85

Kicker 51KSC504 KS Series 5.25Inch Co Axial Speakers

Delivery between 11–13 Sept $9.95

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

Decent Subwoofer
19 August 2023grumpyjim-65

originally posted on ebay.com

Good sound for the price. I took away one star because the terminals are pretty flimsy. Connectors were a little tight, & I was afraid of breaking them before I got the wires attached. Otherwise a good value.

Excellent mount for many vehicles
23 November 2021rockhound66

originally posted on ebay.com

I dont like my phone up in my windshield or clipped to a vent and had trouble finding anything that would hold well down lower. This mount has a very small base and can be mounted in many places out of the way. Magnet is very strong. Only down side is my contact charging was blocked by the large square metal plate on the phone. The smaller round plate is used down lower to allow contact charging again. Both plates are supplied.

Full range capable speakers
18 May 2023jacksonultracom

originally posted on ebay.com

Capable of taking power to overcome the noise of my van at speed! They are a bit bright in my van cab, but that is a tough environment! I can use the equalisation on the head unit to dial in the best sound with these. The only limit on the bass level is the rattles from the doors! They fit perfectly in the doors with the standard covers.

Specification

Speaker Design2-Way
Woofer5-1/4, 130
Tweeter3/4, 20
Rated Impedance4
Peak Power Handling150

Price comparison

Updated about 16 hours ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64
Amazon.com.au

$141.41

Kicker KSC504 5.25" 150W 2-Way Car Speakers

Delivery $7.95

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64
eBay.com.au

$148.85

Kicker KSC504 5.25" 150W 2-Way Car Speakers | 2 | Less than 250W | 0713034011026

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ryda.com.au&sz=64
RYDA - We'll Negotiate

$148.85

Kicker KSC504 5.25" 150W 2-Way Car Speakers - Live Price Matching

Delivery $7.95

https://www.google.com/s2/favicons?domain=strathfieldcarradios.com.au&sz=64
Strathfield Car Radios

$168.85

Kicker 51KSC504 KS Series 5.25Inch Co Axial Speakers

Delivery between 11–13 Sept $9.95

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

Decent Subwoofer
19 August 2023

Good sound for the price. I took away one star because the terminals are pretty flimsy. Connectors were a little tight, & I was afraid of breaking them before I got the wires attached. Otherwise a good value.

grumpyjim-65 originally posted on ebay.com
Excellent mount for many vehicles
23 November 2021

I dont like my phone up in my windshield or clipped to a vent and had trouble finding anything that would hold well down lower. This mount has a very small base and can be mounted in many places out of the way. Magnet is very strong. Only down side is my contact charging was blocked by the large square metal plate on the phone. The smaller round plate is used down lower to allow contact charging again. Both plates are supplied.

rockhound66 originally posted on ebay.com
Full range capable speakers
18 May 2023

Capable of taking power to overcome the noise of my van at speed! They are a bit bright in my van cab, but that is a tough environment! I can use the equalisation on the head unit to dial in the best sound with these. The only limit on the bass level is the rattles from the doors! They fit perfectly in the doors with the standard covers.

jacksonultracom originally posted on ebay.com
Good enough
11 February 2023

Replaced 16 year old stock speakers in my 06 jeep wrangler. The speakers sound cleaner and crisper, but not a HUGE difference from my old worn out speakers tbh. But for the price, they’ll do the job.

GlamisFreak originally posted on bestbuy.com
Kickin' sound
3 April 2021

Install these in a 1997 BMW Z3. Perfect fit and the sound is fantastic. Driven by a Panasonic in dash 60 watt per channel radio much better than the original speakers. Highly recommend

Satisfied originally posted on walmart.com
Satisfied.
12 March 2023

It sounds very good! Good value. Product has a good reputation and it has lived up to it. Would buy from them again.

ale-7508 originally posted on ebay.com
The price is right.
2 March 2022

These are better than scoche, and dual, worse than pioneers and kickers. Good in between. Sounds is clean and crisp, I have no complaints. My entire system is autotek, 6.5's, 6x9's and 2 12" dvc subs powered by a Boss PV3700 5 channel. Cheap system with overall decent performance. It won't blow you out of the car but you will feel the music.

xenocide_21 originally posted on ebay.com
comact sub with nice kick
10 September 2020

I truly thought item was used when it showed up. box was damaged a little probably due to shipping, and what looked like dog, or cat hair on speaker box. Its worked great so far, and we are happy with the performance of said sub.

me196269 originally posted on ebay.com
easy install and sound great.
23 January 2023

I replaced the door speakers in my 2001 Yukon XL with these and it was very easy. I used the original 'snap-in' retainers. They sound very good.

interceptorf originally posted on ebay.com
great sounding subwoofer
1 December 2021

the specifications of this sub works very well with my system, this infinity reference 1070 out performs my old Rockford 4410 sub by a mile, matches my infinity kappa 6x8's great bye

amdphenom15532500 originally posted on ebay.com

Specification

Speaker Design2-Way
Woofer5-1/4, 130
Tweeter3/4, 20
Rated Impedance4
Peak Power Handling150

You may also like

Kicker CSC54 5.25" 2-Way Coaxial Speakers
Kicker CSC54 5.25" 2-Way Coaxial Speakers$106.25 - $289.90
852
Compare 22 offers
Kicker 46CSC684 CS Series 6"X8" 2-Way Car Speakers
Kicker 46CSC684 CS Series 6"X8" 2-Way Car Speakers$130.96 - $477.90
871
Compare 19 offers
Kicker CSC654 6.5" 2-Way Coaxial Speakers
Kicker CSC654 6.5" 2-Way Coaxial Speakers$74.95 - $454.90
3,093
Compare 40 offers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers
Kicker KSC504 5.25" 150W 2-Way Car Speakers

Kicker KSC504 5.25" 150W 2-Way Car Speakers

$141.41

(131 reviews)

The Kicker KSC Series 5.25" 2-Way Speakers deliver powerful, high-fidelity sound in a thin-mount design, making them an ideal upgrade for factory speaker replacements. With a 300W peak power and 150W RMS per pair, these speakers provide rich, clear audio with deep bass and smooth highs. The silk-dome tweeters enhance sound clarity, while the polypropylene woofer and tough rubber surround ensure durability and accurate sound reproduction, even at high volumes. Designed for seamless installation, the KSC Series speakers feature a thin-mount profile that easily fits behind factory grilles, eliminating the need for modifications. The 0.75" neodymium tweeters are engineered for precise high-frequency response, and with a frequency range of 45-21k Hz, these speakers deliver balanced, distortion-free sound. The 4-ohm impedance and 90dB sensitivity allow for efficient power handling, making them compatible with both factory and aftermarket car audio systems. For added versatility, the KSC5G grilles (sold separately) provide stylish protection, while the 4.5" mounting hole diameter and 1.75" top mount depth make installation quick and hassle-free. Whether you're upgrading a stock system or building a high-performance car audio setup, the Kicker KSC Series 5.25" Speakers offer exceptional clarity, durability, and sound accuracy for an enhanced in-car listening experience.

The Kicker KSC Series 5.25" 2-Way Speakers deliver powerful, high-fidelity sound in a thin-mount design, making them an ideal upgrade for factory speaker replacements. With a 300W peak power and 150W RMS per pair, these speakers provide rich, clear audio with deep bass and smooth highs. The silk-dome tweeters enhance sound clarity, while the polypropylene woofer and tough rubber surround ensure durability and accurate sound reproduction, even at high volumes. Designed for seamless installation, the KSC Series speakers feature a thin-mount profile that easily fits behind factory grilles, eliminating the need for modifications. The 0.75" neodymium tweeters are engineered for precise high-frequency response, and with a frequency range of 45-21k Hz, these speakers deliver balanced, distortion-free sound. The 4-ohm impedance and 90dB sensitivity allow for efficient power handling, making them compatible with both factory and aftermarket car audio systems. For added versatility, the KSC5G grilles (sold separately) provide stylish protection, while the 4.5" mounting hole diameter and 1.75" top mount depth make installation quick and hassle-free. Whether you're upgrading a stock system or building a high-performance car audio setup, the Kicker KSC Series 5.25" Speakers offer exceptional clarity, durability, and sound accuracy for an enhanced in-car listening experience.

Kicker KSC504 5.25" 150W 2-Way Car Speakers

(131 reviews)

The Kicker KSC Series 5.25" 2-Way Speakers deliver powerful, high-fidelity sound in a thin-mount design, making them an ideal upgrade for factory speaker replacements. With a 300W peak power and 150W RMS per pair, these speakers provide rich, clear audio with deep bass and smooth highs. The silk-dome tweeters enhance sound clarity, while the polypropylene woofer and tough rubber surround ensure durability and accurate sound reproduction, even at high volumes. Designed for seamless installation, the KSC Series speakers feature a thin-mount profile that easily fits behind factory grilles, eliminating the need for modifications. The 0.75" neodymium tweeters are engineered for precise high-frequency response, and with a frequency range of 45-21k Hz, these speakers deliver balanced, distortion-free sound. The 4-ohm impedance and 90dB sensitivity allow for efficient power handling, making them compatible with both factory and aftermarket car audio systems. For added versatility, the KSC5G grilles (sold separately) provide stylish protection, while the 4.5" mounting hole diameter and 1.75" top mount depth make installation quick and hassle-free. Whether you're upgrading a stock system or building a high-performance car audio setup, the Kicker KSC Series 5.25" Speakers offer exceptional clarity, durability, and sound accuracy for an enhanced in-car listening experience.

The Kicker KSC Series 5.25" 2-Way Speakers deliver powerful, high-fidelity sound in a thin-mount design, making them an ideal upgrade for factory speaker replacements. With a 300W peak power and 150W RMS per pair, these speakers provide rich, clear audio with deep bass and smooth highs. The silk-dome tweeters enhance sound clarity, while the polypropylene woofer and tough rubber surround ensure durability and accurate sound reproduction, even at high volumes. Designed for seamless installation, the KSC Series speakers feature a thin-mount profile that easily fits behind factory grilles, eliminating the need for modifications. The 0.75" neodymium tweeters are engineered for precise high-frequency response, and with a frequency range of 45-21k Hz, these speakers deliver balanced, distortion-free sound. The 4-ohm impedance and 90dB sensitivity allow for efficient power handling, making them compatible with both factory and aftermarket car audio systems. For added versatility, the KSC5G grilles (sold separately) provide stylish protection, while the 4.5" mounting hole diameter and 1.75" top mount depth make installation quick and hassle-free. Whether you're upgrading a stock system or building a high-performance car audio setup, the Kicker KSC Series 5.25" Speakers offer exceptional clarity, durability, and sound accuracy for an enhanced in-car listening experience.

$141.41 - $168.85

in 6 offers

The lowest price for Kicker KSC504 5.25" 150W 2-Way Car Speakers right now is $141.41 at Amazon.com.au, compared across 4 retailers.

The all-time low was $133.97 on 26 Nov 2025 — today's price is 6% above the lowest ever. That's a little above the best price we've seen.

Prices last updated 6 Sept 2026.