The Infinity Alpha 603CF is a 2-way component speaker system designed for automotive audio applications, featuring four 16.5 cm (6.5 inch) drivers that deliver balanced sound reproduction across a wide frequency range. This speaker set operates with a nominal impedance of 4 Ohm and provides 60 Watt RMS power handling capacity with peak power capability reaching 720 Watt. The system achieves 90 dB sensitivity at 2.83V input, ensuring efficient power utilization from most automotive amplifiers. Frequency response spans from 55 Hz to 20 kHz, covering deep bass frequencies through detailed high-frequency reproduction. The coaxial design integrates a robust woofer for low-frequency performance with a precisely tuned tweeter for clear high-frequency output. Constructed with durable materials in a black finish, these speakers are engineered for long-term reliability in automotive environments. Installation is straightforward with included mounting hardware comprising eight fastening screws, eight clip nuts, two mounting plates, two sealing rings, and comprehensive installation documentation. The speakers are compatible with standard 16 cm (6.5 inch) mounting locations in vehicle doors or dashboards. This component system maintains audio clarity even at higher volume levels while providing consistent performance across various music genres. The design focuses on delivering accurate sound reproduction without distortion, making it suitable for automotive audio enthusiasts seeking improved sound quality over factory-installed speakers. Each speaker measures approximately 16.5 cm in diameter with standard automotive mounting depth requirements. The complete package includes two full speaker sets for front or rear installation positions, providing comprehensive audio upgrade capability for most vehicle types. Material selection and construction methods prioritize durability to withstand automotive environmental conditions including temperature variations and vibration exposure.
Speaker principle | 2-way |
speaker type | Component system |
Nominal power | 60 W |
Item number | 60840547 |
Manufacturer | Infinity |
Category | Car hi-fi speakers |
Manufacturer no. | 603CF |
Release date | 6.8.2025 |
speaker type | Component system |
Speaker principle | 2-way |
Woofer diameter | 16.50 cm |
Nominal power | 60 W |
Maximum load | 720 W |
Transmission range | 55 - 20000 Hz |
Max. noise level | 90 dB |
Nominal impedance | 4 Ohm |
CO₂-Emission | |
Climate contribution |
Items per sales unit | 2 x |
Diameter | 165 mm |
How often does a product of this brand in the «Car hi-fi speakers» category have a defect within the first 24 months?
Source: Digitec GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
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How often is a product of this brand in the «Car hi-fi speakers» category returned?
Source: Digitec Galaxus20 products are on offer, but who will buy them at the lowest price? Only the first to bid will win.



















