Description
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Pioneer TS‑B400PRO
The Pioneer TS‑B400PRO is a 4″ (≈ 10 cm) bullet‑horn tweeter from Pioneer’s PRO Series — designed for high output “open show” car audio systems. It features a titanium diaphragm and aluminium die‑cast horn chassis for high efficiency and durability, with specs of 200 W RMS (continuous) and 500 W peak power handling, a sensitivity of 106 dB, an impedance of 4 Ω, and a frequency response of 2,800 Hz to 27 kHz.
Features
- 4″ PRO Series Car Tweeters
- Power Handling:
- Peak: 500 watts
- RMS: 200 watts
- Titanium tweeter construction
- Aluminum die-cast chassis
- 4 ohms impedance
- High-temperature voice coil
- In-line crossover filter
- Aggresive magnet structure
- Surface mountable design
- Sensitivity: 106dB
- Frequency response: 3,500-27,000 Hz
- Top-mount depth: 2-5/8″






















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