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.
There are no live offers for Kicker KSC504 5.25" 150W 2-Way Car Speakers right now. The all-time low we recorded was $133.97 on 26 Nov 2025. Set a price alert to hear when it's back in stock.
Prices last updated 6 Sept 2026.
Kicker KSC504 5.25" 150W 2-Way Car Speakers
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.
Last updated at 09/06/2026 11:14:47
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!
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!
Kicker KSC504 5.25" 150W 2-Way Car Speakers - Live Price Matching
Delivery $7.95
Kicker 51KSC504 KS Series 5.25Inch Co Axial Speakers
Delivery between 11–13 Sept $9.95
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.
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.
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.
| Speaker Design | 2-Way |
| Woofer | 5-1/4, 130 |
| Tweeter | 3/4, 20 |
| Rated Impedance | 4 |
| Peak Power Handling | 150 |
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!
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!
Kicker KSC504 5.25" 150W 2-Way Car Speakers - Live Price Matching
Delivery $7.95
Kicker 51KSC504 KS Series 5.25Inch Co Axial Speakers
Delivery between 11–13 Sept $9.95
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.
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.
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.
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.
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
It sounds very good! Good value. Product has a good reputation and it has lived up to it. Would buy from them again.
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.
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.
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.
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
| Speaker Design | 2-Way |
| Woofer | 5-1/4, 130 |
| Tweeter | 3/4, 20 |
| Rated Impedance | 4 |
| Peak Power Handling | 150 |
