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Item #:
37689331
Infinity Kappa 603CF 6-1/2" (165mm) Two-way Component Speaker System
87% of respondents would recommend this to a friend
Item #:
37689331
GBP 444
Price Details
Price
GBP 444
Excluding Shipping, VAT & Custom charges ( Shipping, VAT and custom charges will be calculated on checkout.
If Item price + shipping is below GBP 135, 20% VAT will be calculated on checkout, if it is equal or above GBP 135, no VAT will be charged. )
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Imported from USA store
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Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Monday, October 26
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Infinity Kappa Series delivers uncompromised audio quality
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What Stands Out
High-Quality Sound
Experience exceptional audio clarity with advanced engineering, delivering rich bass and crisp highs for a vibrant listening experience, ideal for audiophiles and casual listeners alike.
Durable Materials
Constructed with premium materials, ensuring longevity and resilience against wear and tear, making this speaker system a reliable choice for all your audio needs.
Easy Installation
Designed for straightforward setup, the Infinity KAPPA603CF fits seamlessly into various vehicles, offering a hassle-free upgrade to your car audio system without extensive modifications.
Product Details
- Infinity KAPPA603CF 6-1/2 165mm two-way component speaker system
- Kappa edge-driven silk dome tweeters deliver smooth highs with impressive thermal power handling and 40kHz high resolution
- Glass fiber woofer cones provide increased low-frequency output and higher efficiency
- Angled tweeter with push-button control for output level optimization
- Tweeters are angled and rotatable to provide imaging options and elevate the soundstage
- Compact crossovers with 2-way and 3-way selections for midrange upgrade
| Brand | Infinity |
| Speaker Maximum Output Power | 220 watts |
| Frequency Response | 40 KHz |
| Connectivity Technology | Coaxial |
| Audio Output Mode | Stereo |
| Item Weight | 12 lbs (5.44 kg) |
Who Should Buy?
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Car Audio Enthusiasts
Those seeking high-quality sound and clarity for an enhanced driving experience will benefit from these speakers.
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Audiophiles on a Budget
Budget-conscious users wanting premium sound quality in their vehicle without overspending will find these speakers suitable.
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DIY Installers
Individuals interested in upgrading their car audio system themselves will appreciate the easy installation process of these speakers.
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Audiophiles Preferring Brands
Users who have strong brand loyalty to specific high-end audio brands may find these speakers less appealing.
Product Description
Infinity Kappa 603CF 6-1/2" (165mm) Two-way Component Speaker System
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Customer Questions & Answers
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How to Shop Infinity Kappa 603CF 6-1/2" (165mm) Two-way Online From Ubuy?
Answer: It’s easy to shop Infinity Kappa 603CF 6-1/2" (165mm) Two-way online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location. -
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Is Infinity Kappa 603CF 6-1/2" (165mm) Two-way Available to Shop Online in UK?
Answer: Yes, at Ubuy UK this product is available for you to shop at a reasonable price. The Infinity Kappa 603CF 6-1/2" (165mm) Two-way is not available locally but you can trust us with our express shipping services. -
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How Long Does It Take to Get Product After Placing the Order?
Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.
Infinity Coaxial Speakers Editorial Review
Infinity Kappa 603CF 6-1/2" (165mm) Two-way Component Speaker System delivers exceptional audio quality with a frequency response of up to 40 KHz, making them a great option for car audio enthusiasts. Users have reported that these speakers produce awesome sound even when paired with stock stereos, and they truly shine when amplified. Many reviews commend the clean bass and high-quality treble from the tweeters, although some users noted that the tweeters can be overly loud without proper EQ settings. Overall, the Kappa 603CF is a fantastic choice for those looking to upgrade their vehicle’s sound system and experience clear and powerful audio output.
Customer Reviews & Ratings
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Pros
- High-quality treble and clear sound
- Impressive bass response for 6.5" speakers
- Compatible with various car types
- Relatively easy to install
- Great upgrade from factory speakers
Cons
- Tweeters may require EQ adjustment for balance
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
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Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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GBP 444
Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Monday, October 26
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Refined design, proprietary technology, premium materials
- Convenient features for customizing sound
- Includes 2 woofers, 2 tweeters, and 2 external crossovers
- Handles up to 110 watts RMS (330 watts peak power)
- Includes installation manual and all necessary components
- Grilles not included
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