【U10A Powered Subwoofer｜Naturally adds low-bass thickness】

Low frequencies are often the first to feel lacking, even with a factory audio system or after replacing speakers. However, if the bass is made to stand out by itself, the musicality of vocals and instruments will fall apart.

U10A is a powered subwoofer that combines a 25cm aluminum flat-cone driver with a built-in 180W RMS power amplifier. Housed in a compact aluminum die-cast enclosure, it’s a model that’s easy to consider in terms of installation space while still adding genuine low bass to your vehicle.

In addition to enhancing low-bass reproduction with a bass-reflex box, it also supports a low-pass filter and phase adjustment. You don’t just get impact when you turn the volume up—the overall music gains thickness even at the volume you usually listen to, aiming to make the front speakers sound more natural.

A subwoofer isn’t simply something that needs to be loud. The final impression changes depending on the mounting position and fixing method, the volume balance with the front speakers, and adjustments to phase and cutoff frequency. If it were me, I would prioritize tuning so that the music throughout the entire cabin comes together—not only the sheer punch of the U10A by itself.

This is a worthwhile choice for those who say, “The bass isn’t enough, but I don’t want an over-the-top system,” or “After replacing the speakers, I want a little more thickness in the sound.” Let’s figure out together how much low bass is ideal for your vehicle model, your current audio setup, and the music you want to enjoy.

Main Specifications / Specs

【Basic Information】

• Product name: U10A
• Type: Powered subwoofer
• Enclosure: Aluminum die-cast
• Box type: Bass-reflex

【Subwoofer Unit】

• Driver size: 25cm
• Cone: Aluminum flat-cone

【Built-in Power Amplifier】

• Amplifier type: Class AB
• RMS power: 180W
• Max power: 360W

【Filter / Adjustment Functions】

• Low-pass filter: 15Hz to 150Hz
• Low-pass filter slope: 24dB/oct
• Phase adjustment: Switch 0°/180°, continuously variable 0° to 180°
• Phase adjustment range: 0° to 360°
• Subsonic filter: 16Hz fixed
• Subsonic filter slope: 12dB/oct
• Subsonic filter: Removes unwanted sub-low frequency noise

Shop owner　Komizo (小溝(コミゾ))