Although it is cheap, it is a woofer with a long history as an under-seat woofer!!

Although it is small, it achieves a deep bass range with a natural sense of spaciousness and a sense of scale that goes well with the mid-to-high range.
In addition, in order to thoroughly eliminate and reduce the standing wave phenomenon that greatly affects the reproduced sound, we have taken measures using YS Corporation's original standing wave treatment material.
With its amazingly thin form, it can be installed under the passenger seat.

Specifications: 10inch (25cm) thin tune-up subwoofer (built-in amplifier)
Maximum output: 200W
Rated output: 150W
Frequency response: 30Hz-160Hz
S/N ratio : 91dB
Input sensitivity: 82mV (at RCA input) / 800mV (at high level input)
Maximum current consumption: 12A
Crossover: Low pass 50Hz-100Hz
Size (width x depth x height ) 369 x 275 x 82 mm
With high level input
Base controller included
Wiring kit included (excluding RCA cable)
Phase selection switch: 0°/180°
Auto turn ON/ OFF function (effective at high level input)
Standing wave countermeasure: Real Silt Diffusion® adopted