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The Sound Auto Concept Team

SP Audio SP-8CX Midrange 8″ / 20 cm – 250 W RMS (Pair) Super-Slim

The SP Audio SP-8CX pair represents the culmination of an 8″ (20 cm) "Super-Slim" midrange speaker for car audio enthusiasts. With only 250 W RMS (and a manufacturer spec sheet that can go beyond), this model combines ease of installation with sound performance.

Thanks to its ultra-flat design and careful engineering, this midrange easily integrates into vehicles with limited space while delivering exceptional mid-range/upper-midrange sound: vocal clarity, instrument nuances, controlled dynamics—everything you expect from a high-end audio system.

Technical Specifications

• Size: 8″ / 20 cm (nominal diameter)
• Rated power (RMS): 250 W (pair) — "super-slim" model
• Nominal impedance: 4 Ω (typically)
• Ultra-flat profile for easy mounting in compact or demanding vehicles
• Robust connectivity, high-performance voice coil, dedicated upper-midrange cone

Why choose this SP-8CX pair?

Because you are looking for:

• A large midrange speaker (20 cm) capable of "breathing" and being freer than a 16.5 cm model
• A "Super-Slim" format that easily adapts to shallow or premium locations
• A more open, more present sound, with a clear mid-range, without bloat and without excess
• A system that remains discreet but very powerful in a vehicle where space is limited

Recommended Applications

• Replacement of original speakers in vehicles with 20 cm slots
• High-end 2-way or 3-way audio systems where well-defined mids and upper-mids are desired
• Installations in compact vehicles or those with limited depth (doors, ceilings, arches, etc.) where a "slim" model is an asset
• In conjunction with a high-end tweeter and a subwoofer, for a balanced and precise rendering

Installation Tips

To fully utilize this SP-8CX pair:

• Allow for a compatible 200 mm (20 cm) cutout and check the available depth
• Use an appropriate high-pass filter (e.g., 80-120 Hz) if the midrange shares the bass with a woofer
• Install with solid mounting and ideally a rigid baffle for optimal performance
• Choose quality amplification (at least 100 W RMS per speaker) to express its dynamics

Pack Contents

• 1 × Pair of SP Audio SP-8CX speakers (8″ / 20 cm)
• Mounting accessories and screws
• Manufacturer documentation

SP Audio Quality

The SP Audio brand is renowned for its high-end car audio components, meticulously designed for enthusiasts. The SP-8CX series embodies this spirit: performance, musicality, careful integration. Add this pair to your system to take it to the next level.