【USB-8｜Add Depth to the Low Frequencies Inside Your Car with a 20cm Powered Subwoofer】

I want the sound of my factory audio to have a bit more low-bass thickness and impact.

That’s exactly what the USB-8 is for—an integrated unit combining a 20cm flat-cone woofer and a power amplifier. Even in vehicles where it’s difficult to find space to install a large, box-type subwoofer, you can add a bass system in a relatively compact form.

It’s not just about making the bass louder. By補完ing the lower frequency range that front speakers alone have difficulty reproducing, the entire music can sound fuller. If you adjust it so it doesn’t get in the way of vocals and instruments, you’ll often be able to feel the foundation of the track even without increasing volume—giving your usual music a slightly different impression.

A Configuration That’s Easy to Combine with a Factory System

The USB-8 supports high-level input, allowing it to connect to head units that don’t have pre-outs. This makes it easier to consider if you want to add a subwoofer without significantly replacing your factory navigation system or factory audio.

When using high-level input, the auto power-on function can also be used, so you don’t need to operate the subwoofer unit every time you get in the car. If you place the included level controller within reach, you can adjust the amount of bass according to the music or your mood.

The low-pass filter can be set in the 50 to 100Hz range, and it also includes a phase-switching function. A subwoofer isn’t the kind of device that automatically sounds good just by being installed—how you set it up to work with the front speakers is crucial.

How You Mount and Tune It Changes How Easy It Is to Listen To

The USB-8’s external dimensions are W240mm × H74mm × D345mm. Depending on the vehicle, the mounting location and fixing method will vary, but this is a size that’s convenient when you want to add a subwoofer to a limited space.

On the other hand, if you handle things like how you tap power, how you route the signal cables, mounting method, and level adjustment in a rough or careless way, you may end up with bass that stands out too much—or with less unity between the subwoofer and the front speakers.

At LOGON, we consider how to combine the USB-8 while confirming the vehicle model, the configuration of the factory audio, the music you usually listen to, and your preferences for volume. If it were me, I wouldn’t focus first on “just getting more bass.” I’d prioritize the position and settings that make the bass connect naturally when you listen to your everyday music.

If you’re interested in adding a subwoofer but you’re unsure which size will fit, whether it can be connected to your factory navigation, or how much of the trunk you’ll need, let’s sort it out together based on your vehicle. With mounting and tuning that let you make the most of the USB-8, we’ll finish it in a way that lets you enjoy your daily music even more.

Main Specifications / Specs

【Basic Information】

• Product name: USB-8
• Type: 20cm powered subwoofer
• Unit: 20cm flat-cone woofer
• Impedance: 2Ω + 2Ω (DVC)

【Output / Performance】

• Rated output: 100W (50W + 50W)
• Maximum output: 160W (80W + 80W)
• Operating power supply voltage: DC14.4V (10.0V to 16.0V)
• Maximum current consumption: 8A
• S/N ratio: 60dB or higher
• Low-pass filter: 50 to 100Hz

【Input / Features】

• RCA input sensitivity: 50mV to 0.2V
• High-level input sensitivity: 0.8V to 10.0V
• High-level input: Supported
• Auto power-on function: Supported (only when using high-level input)
• Phase switching function: Available
• Level controller: Included (4.0m)

【Size / Weight】

• External dimensions: W240mm × H74mm × D345mm
• Weight: 5.0kg

【Included Accessories】

• Level controller 4.0m
• 12-gauge power cable 5.0m
• Remote cable 5.0m
• High-level speaker cable 5.0m
• Grounded connector cable 1.5m
• Mounting hardware set