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Product details

Advanced Specifications
Midbass
  • Outside diameter: 165 mm
  • Moving diameter: 134 mm
  • Weight: 1625 g (1895 g with front ring)
  • Chassis: Cast aluminium
  • Membrane: Treated paper
  • Dust cap: Integrated with membrane
  • Motor system: Overhung with strong ferrite magnet
  • Nominal impedance: 4 Ω
  • Nominal power: 50–100 W RMS
  • Frequency response (+/-3 dB): 55 Hz – 4.5 kHz
Midrange
  • Outside diameter: 100 mm
  • Moving diameter: 61 mm
  • Weight: 413 g
  • Chassis: Cast aluminium
  • Membrane: Treated paper
  • Dust cap: Integrated with membrane
  • Motor system: Strong neodymium magnet
  • Nominal impedance: 4 Ω
  • Nominal power: 50–75 W RMS
  • Frequency response (+/-3 dB): 160 Hz – 12 kHz
Tweeter
  • Outside diameter: 60.9 mm
  • Moving diameter: 24 mm
  • Weight: 233 g
  • Housing: Stainless steel
  • Membrane: Fabric dome
  • Motor system: Neodymium magnet
  • Nominal impedance: 4 Ω
  • Nominal power: 50–100 W RMS
  • Frequency response (+/-3 dB): 2 kHz – 20 kHz

*This system is intended for active use. Amplification, DSP, and system tuning are required.

Key Features
  • True 3-way architecture for full-range detail: dedicated tweeter, midrange, and midbass drivers
  • Rigid cast-aluminium chassis across the midrange and midbass for stability and control
  • Motor system mix designed for control and efficiency: ferrite overhung midbass + neodymium midrange/tweeter
  • Wide-band coverage per driver for clean handover in an active/DSP setup
  • Treated paper cone design (midbass + midrange) for natural tonal character
  • Stainless tweeter housing for robust mounting and durability
Best Suited For
  • Active/DSP-driven builds where you want independent control over tweeter / midrange / midbass levels, crossover points, time alignment, and EQ
  • Audiophile-style front stage upgrades focused on clarity, tonal accuracy, and soundstage realism (not just maximum volume)
  • Installers running multiple amps or multi-channel amplification, using the 3-way layout to properly allocate power and tuning per driver
  • Vehicles where you want strong midbass foundation from a 165mm driver while keeping vocals and top-end detail separated into dedicated drivers
  • Enthusiasts who plan to tune (or pay for tuning) to get the full benefit from a 3-way system
Why OSCA Backs This Product

When a customer is going active, we want drivers that behave predictably and reward proper tuning. The 7S3 is clearly built around that mindset with separate drivers, premium motor materials, and design language focused on clarity and realism. If you’re already committing to DSP and dedicated amplification, this is the kind of set that makes that extra effort worthwhile.

Reference Grade High Resolution

The Revolution Series is built to deliver a level of clarity and realism that immediately stands out. Using AI-optimised design, these speakers present your music with natural balance, effortless detail, and a smooth, non-fatiguing character that keeps you listening longer. The soundstage is wide, layered, and immersive, bringing depth and separation to every track.

Designed for high-end active systems, the Revolution 7 Series gives you total control over how your system comes to life. Backed by Crescendo’s competition heritage and premium construction throughout, this is a speaker set focused on one thing: clean, dynamic, high-resolution sound that feels as good as it measures.

REAL CAR AUDIO

Backed by People Who Live it

Revolution Series 7 — Proven on the World Stage🏆

The Revolution 7 Series is Crescendo’s flagship achievement. A fully integrated 3-way audio system, subwoofer, and amplifier lineup that has proven itself at the very top of global sound quality competition. In 2025 alone, a full Revolution 7 system powered the EMMA Asia Master Unlimited Champion to victory, claiming the prestigious “Best of the Best” sound quality title, a distinction reserved for the finest-tuned vehicles on the continent. Across Europe, the same series contributed to Crescendo’s 7-class sweep at the EMMA European Finals in Salzburg, including wins in elite divisions like Master, Expert, and Skilled Unlimited. Whether it’s the 7S3 speakers, 710 subwoofer, or 7A4 amplifier, this series is not just high-end, it’s world-class, competition-winning engineering.

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