Pioneer TS-B401PRO

What is Pioneer P.R.O.

In the early 2000s, an SPL competition called “dB drag racing” became popular in the U.S. By 2003, there were approximately 10,000 competitors, with winners achieving around 150dB. Pioneer broke the world record in 2004 by reaching 173.0dB and renewed this title the following year with an impressive 180.5dB!

Around 2005, under the sponsorship of the IASCA (International Auto Sound Challenge Association), an emerging SPL competition called "OPEN SHOW" was introduced with great success. The acronym for Pioneer P.R.O. (Pioneer Reference for Open Show) for our dedicated products comes from this designation.

Now, it's a trend that can also be enjoyed casually outdoors, whether partying or tailgating at your favorite sports event.

Large and Heavy

Specifically crafted for open show car audio systems, these speakers exemplify phenomenal maximum power and incredible efficiency, allowing not only high sound pressure (SPL) but also hours of musical enjoyment. The basket and the imposing motor structure of this speaker, which uses a heavy magnet, offer all the required power handling and heat dissipation to move the main cone and its large aluminum voice coil.

Titanium and Aluminum

A titanium diaphragm is the centerpiece of the horn-loaded tweeter unit, which uses a high-quality die-cast aluminum basket and center bullet to maintain better accuracy under high power and improve heat dissipation.

• 600 Watts Max. Power / 300 Watts Nominal Power
• 4.0" Titanium Diaphragm Bullet Tweeter
• Field-Serviceable tweeter unit
• Frequency range: 2500 Hz to 22 kHz
• Speaker Impedance: 4 ohms
• Speaker Efficiency: 106 dB (1W/1M)
• Designed for High Sensitivity and High-power Handling
• P.R.O. Series - Pioneer Reference for Open Show

Specification: