【KFC-RS175S｜17cm Custom-Fit Speaker】

If the sound from your factory speakers feels a bit muffled, the vocals sound distant, or you want a bit more soundstage—this 17cm custom-fit speaker is an easy option to consider.

KFC-RS175S uses a configuration that combines a woofer and a tweeter. While tuning the presence of the vocals and the clarity/extension of high frequencies, it aims to deliver sound that connects naturally from the low end to the high end. Even with music you usually listen to, vocal contours and instrument locations become easier to identify, making it more enjoyable to listen even on long drives.

For the diaphragm, it uses a mica-filled PP material that achieves both light weight and stiffness. The diamond-array pattern on the surface increases diaphragm stiffness, reproducing clear sound with low distortion. The tweeter is designed with the frequency bands related to vocal presence in mind, making it suitable for those who want vocals to feel more full-bodied.

The included multi-bracket supports installation in a wide range of vehicle models, including Toyota, Nissan, Honda, Mitsubishi, Subaru, Mazda, Suzuki, VW, Audi, BMW, and more. Many compatible vehicles can be installed without needing to purchase separate brackets—another reason this product is easy to handle.

However, speaker sound isn’t determined by simply swapping the product. Differences in the factory system on the vehicle side, the condition of the doors, the installation method, and the tweeter orientation can all change how the same product sounds. If it were me, I would first confirm the vehicle model and your usual way of listening, then make the adjustments starting with the parts that are most likely to show an effect—without doing more than necessary.

This is a model that’s also easy to recommend to people who are considering replacing factory speakers but don’t know how much the sound will change. If you want to discuss together things like the installation method that fits your vehicle and deadening, let’s decide the direction while looking at your actual car. We’ll guide you thoroughly so you can enjoy your everyday drives with great sound—tailored to your vehicle.

Main Specifications / Specs

【Basic Information】

• Product name: KFC-RS175S
• Type: 17cm custom-fit speaker
• Configuration: 2 speakers (1 pair)
• Tweeter: 1 set included

【Installation / Fitment】

• Multi-bracket: Included
• Compatible vehicle models: Toyota, Nissan, Honda, Mitsubishi, Subaru, Mazda, Suzuki, VW, Audi, BMW, and more
• Number of compatible vehicle models: 300+ models (as of Nov. 2022)
• Separately sold options: Not required for a wide range of vehicles

【Key Design Features】

• Diaphragm: Mica-filled PP diaphragm
• Diaphragm surface: Diamond-array pattern
• Diffuser: Wave-shaped design
• Tweeter: Design considering frequency bands related to vocal presence
• Network: Design considering the connection of woofer and tweeter sound