Garage
Shop

Customer Ratings & Reviews


Infinity Kappa 50.11cs thumbnail image
View product page

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
4.7
Value
4.4
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...

amazing

I bought these speakers and the 6 1/2 version, while ive only installed the 6 1/2"s in a previous vehicle, powered by a kenwood 4ch amp pushing 85w @ 2ohm, they sounded incredible, super crisp and clear. i am now installing the 5 1/4 set into my current vehicle and have purchased the current model of the kenwood amp that powered the 6 1/2" set, which will put out 100w @ 2ohm. due to the 5 1/4" being a small speaker size i imagine the very low end will suffer, which is why i am also going to be running an 8" sub to complete the setup.

By Eric on August 2, 2014

23 found this helpful


infinity speakers!!

speakers are great and the service was second to none thank-you sonic!!!

By Ron on March 23, 2015

17 found this helpful


Crisp clean and LOUD!

I got these to replace my Kappa 6x8's that were discontinued years ago. The old Kappa's were amazing and I only replaced them after a careless mechanic smashed one of my tweeters. It turned out to be a good thing because I am seriously impressed by these new Kappa 5.25's. They are loud and crisp with tremendous frequency response and sensitivity. I'm running these with an audiophile quality Pioneer deck and an old school MTX Elite 1000.4 4 channel amp. I highly recommend these speakers. Please amplify to reach their full potential!

By Stephen on July 10, 2016 Checkmark Icon Verified purchase

2 found this helpful


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

1974 Ford Thunderbird

1996 Eagle Vision

1990 Lexus LS400

2005 GMC Envoy

2012 Subaru Legacy

1985 Subaru DL

2001 Subaru Impreza

2018 Audi S4

2004 Jaguar S-Type

2011 Ram 2500

Vehicle
Store
Delete

2000 Harley Davidson FLTR Road Glide

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
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

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.