Pioneer TS-B401PRO PRO Series 4" Bullet Tweeter - Each (TSB401PRO)

Pioneer TS-B401PRO PRO Series 4" Bullet Tweeter - Each (TSB401PRO)

The Pioneer TS-B401PRO is built for anyone who wants their system to hit hard, sound crisp, and turn heads the moment the music starts. If you’re chasing bold sound pressure levels with sharp high-frequency detail, this powerful 4" bullet tweeter steps up with strength, clarity, and attitude.

High Output Power That Commands Attention

With 600 watts max power and 300 watts RMS, this tweeter doesn’t just play music—it projects it with force. The combination of a titanium diaphragm and a 4-ohm impedance helps deliver clean, cutting highs that stay accurate even at high volumes. Thanks to its impressive 106 dB efficiency, every watt counts, letting you squeeze out massive output without the strain.

Built for the P.R.O. Series Experience

The Pioneer P.R.O. (Pioneer Reference for Open Show) lineup was inspired by the brand’s history of dominating SPL competitions. If you know anything about Pioneer breaking world records—like hitting 173.0dB in 2004 and 180.5dB in 2005—it’s clear where this tweeter gets its DNA. The P.R.O. series was built for enthusiasts who want serious sound pressure in open show-style environments, whether you're hosting an outdoor party or making a statement at a tailgating event.

Engineered for High Sensitivity and Control

The Pioneer TS-B401PRO features a 4" titanium diaphragm that gives the tweeter its signature clarity and durability. The horn-loaded design enhances projection, while the die-cast aluminum chassis keeps everything stable under high power. This combo helps maintain accuracy, manages heat effectively, and supports long, loud listening sessions without distortion.

Designed for Tough Performance

This tweeter isn’t just powerful—it’s rugged. A ferrite magnet weighing over 15 ounces and a heavy-duty motor structure help achieve impressive power handling and heat dissipation. Built to thrive in open show conditions, it delivers strength you can feel and performance you can trust.

Field-Serviceable for Added Value

The field-serviceable tweeter unit means you can maintain performance over time. Instead of replacing the whole tweeter, you can service it—an added bonus for anyone who pushes their system hard.

Wide Frequency Range for Crisp, Clear Detail

Covering 2,500 Hz to 22 kHz, the Pioneer TS-B401PRO handles everything from sharp vocals to sizzling cymbals with precision. Even at high output levels, you get consistent clarity across the entire high-frequency spectrum.

Performance Specs That Matter

• 600W max power / 300W nominal
• 4-ohm impedance
• 106 dB sensitivity
• 2,500 Hz – 22 kHz frequency range
• Titanium diaphragm and die-cast aluminum chassis
• Cutout: 3-3/4"
• Mounting depth: 2-5/8"
• Magnet weight: 431 g (15.2 oz)

Whether you’re building a competitive open show setup or just want that live-concert feel outdoors, this tweeter delivers the punch and precision the P.R.O. series is known for.

Elevating your sound system doesn’t have to be complicated. The Pioneer TS-B401PRO gives you the raw power, crisp clarity, and high sensitivity you need to make every moment louder, sharper, and more exciting.

FAQs

1. Is the Pioneer TS-B401PRO designed for high-volume environments? Yes, it’s built for open show settings and delivers high sound pressure levels with excellent efficiency.
2. What type of diaphragm does the Pioneer TS-B401PRO use? It features a titanium diaphragm engineered for accuracy and durability.
3. What is the frequency range of the Pioneer TS-B401PRO? It covers 2,500 Hz to 22 kHz for clear and detailed high-frequency response.
4. How sensitive is the Pioneer TS-B401PRO? It has a sensitivity rating of 106 dB, making it extremely efficient.
5. What materials are used in the construction of this tweeter? It includes a titanium diaphragm, die-cast aluminum chassis, and a ferrite magnet built for strength and heat management.