Infinity Alpha 603M

480 W, 16.50 cm
Delivered between Fri, 17.4. and Thu, 23.4.
Only 4 pieces in stock at supplier
free shipping

Product details

The Infinity Alpha 603M is a 16 cm 3-way coaxial car speaker system designed to enhance sound performance in vehicles. With a peak power of 480 watts and a nominal power of 60 watts, these speakers deliver robust sound across a wide frequency range of 55 Hz to 20,000 Hz. The 3-way coaxial design integrates a 16.5 cm woofer with separate midrange and high-frequency components for balanced sound reproduction with clear highs, detailed mids, and solid bass. With a sensitivity of 90 dB at 2.83 volts, the speakers produce powerful, clear sound even at moderate power levels, featuring a nominal impedance of 4 ohms for compatibility with most car audio systems. The sturdy construction made from durable materials in a black finish includes protective grilles that preserve both speaker protection and aesthetic appeal. The system comes complete with mounting accessories, including sealing rings, screws, spring nuts, and mounting rings for easy installation in most vehicle doors or rear decks. The compact design with appropriate mounting depth ensures compatibility with various vehicles while maintaining sound quality. These speakers are built for long-term reliability and consistent performance under typical car audio conditions, making them suitable for upgrading factory audio systems as well as enhancing aftermarket installations.

Key specifications

speaker type
Cinch
Speaker principle
3-way

General information

Item number
60840536
Manufacturer
Infinity
Category
Car hi-fi speakers
Release date
6.8.2025

Speaker properties

speaker type
Cinch
Speaker principle
3-way
Woofer diameter
16.50 cm
Maximum load
480 W
Power
60 W
Transmission range
55 - 20000 Hz
Max. noise level
90 dB
Nominal impedance
4 Ohm

Voluntary climate contribution

CO₂ emissions
17.48 kg
Climate contribution
CHF 0.42

Scope of delivery

Items per sales unit
2x

Package dimensions

Length
41.80 cm
Width
21.50 cm
Height
9.70 cm
Weight
1.68 kg

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

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 Galaxus
  • Infinity
    Not enough data
  • 1.Alpine
    0 %
  • 1.Blaupunkt
    0 %
  • 3.Pioneer
    0.2 %
  • 4.JVC
    0.4 %

Warranty case duration

How 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?

Source: Digitec Galaxus
  • Infinity
    Not enough data
  • Alpine
    Not enough data
  • Blaupunkt
    Not enough data
  • Focal
    Not enough data
  • JVC
    Not enough data

Unfortunately, we don't have enough data for this category yet.

Return rate

How often is a product of this brand in the «Car hi-fi speakers» category returned?

Source: Digitec Galaxus
  • Infinity
    Not enough data
  • 1.JVC
    3.6 %
  • 2.Alpine
    4.9 %
  • 3.Focal
    5.2 %
  • 4.Pioneer
    7.3 %
Source: Digitec Galaxus