The Kenwood KFC-S1666 S Series is a 6.5-inch (16cm) 2-way coaxial speaker designed as a highly efficient factory replacement.It is specifically engineered to perform well even when powered directly by a standard car head unit rather than an external amplifier.
Technical Specifications
Feature
Specification
Speaker Size
6.5" (16cm)
Configuration
2-Way Coaxial
Peak Input Power
300W
RMS Input Power
30W
Frequency Response
40Hz – 22kHz
Sensitivity
90dB (at 1m)
Impedance
4Ω
Mounting Depth
43.2mm (Shallow mount)
Peak Input Power
300W
Rated Input Power
30W Impedance 4 ohms
Woofer Features
6-1/2inch PP Cone
Tweeter Features
1inch Balanced Dome Tweeter
Specifications
Sensitivity: 90dB / W / m
Frequency Response: 40Hz - 22kHz
Cutout Diameter: 4-7/8inch
Mounting Depth: 1-11/16inch
Gross Weight: 2.9lbs
Weight of Magnet (Woofer): 0.49lbs
Pair with other Kenwood products
Explore our complete Kenwood collection to find the perfect complement to your purchase
Forget manual mileage logs. Our system automatically records every journey from start to finish, ensuring complete and accurate data without any extra work.
Distinguish private and business use
Easily separate personal and professional trips. The system tags journeys automatically, helping you stay compliant and saving time on administration.
Real-time GPS tracking
Track your vehicle’s location live and view complete route histories at any moment. Perfect for both individual drivers and fleet managers who need full visibility.
Have questions about our trip registration and vehicle tech solutions? We’ve gathered the most common questions and answers to help you get started quickly.
How does the trip registration system work?
Our trip registration device automatically logs every journey you take. It uses GPS tracking to capture routes in real time and distinguishes between business and private trips. You can access all reports via our secure online dashboard or mobile app.
Is the system approved for tax purposes?
Yes. All trip data and reports are fully compliant with tax authority requirements. You can download your mileage logs as official, tax-proof documentation at any time, ensuring you stay 100% compliant.
Do I need professional installation?
No. Our devices are designed for plug & play installation. Simply connect the unit, and you’ll be ready to track trips within minutes. If you prefer, we also offer professional installation through our certified partners.
Can I use the system for multiple vehicles?
Absolutely. Our trip registration solution supports single vehicles as well as full fleets. Each vehicle gets its own device, and all data is managed from one central dashboard for easy oversight.
What happens to my data if I cancel the service?
Your trip history remains securely stored for up to 12 months after cancellation. You can download all reports before closing your account to ensure you have full access to your mileage records.
Reliable, intuitive, and surprisingly affordable. I use Fleetassist for my personal car and it’s been a game changer. Trip overviews are crystal clear and the app works flawlessly.
Sophie L
Utrecht
I run a small delivery business and needed a system that’s both tax-compliant and easy to manage. Fleetassist delivers exactly that. The installation was quick, and the live tracking is spot-on.
Jamal K
Canada
As a self-employed electrician, I’m on the road a lot. With Fleetassist, I no longer have to think about logging my trips — it’s all done automatically. And the customer support? Top-notch.
