Pioneer launches groundbreaking HVT subwoofer


Pioneer Electronics Asia Centre Pte. Ltd. – 18 November 2014 – Pioneer Electronics, a leader in aftermarket car audio, today unveils the world’s first patented Horizontal-Vertical Transforming (HVT) subwoofer outside Japan, TS-WH500A. The unique HVT technology, modelled after the Scott Russell linkage[1] concept was first developed by Pioneer, who created the TS-WH500A to achieve top-notch rich bass reproduction in the thinnest form ever found in the market.

“As the inventor of the cutting edge HVT technology, we are proud to introduce the world’s first patented HVT subwoofer outside Japan, which drastically reduced the thickness and unwanted vibrations compared with conventional subwoofers,” said Mr. Daisuke Takekawa, Senior General Manager of Sales & Marketing Group, Pioneer Electronics AsiaCentre. “The HVT subwoofer represents Pioneer’s enduring commitment in creating innovative products to enhance our customers’ audio experience in the car. Drivers can now enjoy a whole new level of the bass sound with significantly lower distortion and greater low frequency precision in a much sleeker form factor.”


TS-WH500A, the patented HVT subwoofer, leverages on the HVT linkage mechanism which:The TS-WH500A adopts the patented HVT mechanism already applied in Pioneer’s Sound Wing loudspeakers – a Scott-Russell linkage inside the subwoofer unit, which transforms horizontal movement of the voice coil into vertical movement of the diaphragm, thereby dramatically reducing subwoofer height as well as unwanted vibration, while achieving quality sound delivery through a sleek and slim design This new linkage mechanism is the key feature that powers the TS-WH500A’s ability to outperform conventional subwoofers by heightening bass sound quality while spotting a much slimmer design, an outstanding breakthrough in which Pioneer is the first to achieve.

Dramatically Reduced Thickness – The unique placement of the voice coil and super flat diaphragm effectively reduced the thickness of the subwoofer.

Elimination of Unwanted Vibration – Unlike conventional structures where the diaphragm and voice coil moves in the same direction, these two components are designed to move opposite from one another in the new TS-WH500A. This improvement greatly minimized the excess force usually encountered within traditional subwoofer units, which are often the cause of undesirable noises at the bottom cabinet or ‘floor noise’. With HVT technology, these unwanted vibrations are almost non-existent in the TS-WH500A.

Richer Bass Reproduction – Despite its small enclosure, the TS-WH500A is better equipped to produce ultra-low frequency and a wider range than other conventional models. The HVT linkage mechanism allows the subwoofer to perform soft suspensions by easing the limitation of movement of the spider and/or voice coil, preventing further acoustic distortion in order to achieve superior acoustic response with clearer bass.

Flexible Installation – With the TS-WH500A’s dimensions at 60mm (height), 250mm (width) and 340mm (length), more car owners have the option to install the HVT subwoofer under their vehicle’s seats with its uncommonly compact and slim design.


Pioneer HVT subwoofers will be available at Pioneer authorised dealers from late November 2014.

For more on these products, please visit the Pioneer Car Entertainment Facebook page at


Additional notes:
PIONEER is registered trademark of Pioneer Corporation.

About Pioneer Electronics AsiaCentre (PAC) Pte. Ltd.
The regional headquarters of Pioneer Corporation since 1992, PAC’s core business covers the audio and video industries with a diversified range of products encompassing DVD-related products, home stereo systems, speakers, car audio visual and DJ equipment. In line with the corporate vision to become a company that works together in ‘pursuing innovations one after another’, PAC aims to continuously introduce innovative products that will raise entertainment to the level of pure emotion. For more information, please visit

[1]Scott-Russell linkage is a mechanism which produces a linear motion at a right angle to the input linear motion