【GZHW 20SPL 8-inch (20cm) 1Ω DVC subwoofer】

You want strong bass, but you don’t want the cabin to turn noisy just from the bass. That’s exactly what the GZHW 20SPL is for.

This compact 20cm subwoofer uses a 1Ω DVC (dual voice coil). It not only adds a sense of volume to the low end, but also補s the deep bass that’s difficult for front speakers to reproduce, creating depth across the entire music.

Its construction is also designed with sound pressure and durability in mind—featuring a reinforced paper cone and an aluminum die-cast basket, among other elements. It’s suited for those who want to feel the definition of kick drums and bass, and for those who want a bit more impact when turning the volume up.

However, a subwoofer isn’t something you can finish just by choosing the unit. The way you select an amplifier compatible with 1Ω DVC, the box volume, the installation method, the connection with the front speakers, and adjustments to the gain and crossover will significantly change how it sounds.

The ideal outcome is not a situation where only the bass stands out, but one where vocals and instruments are not hindered—so the music is supported from below as a whole. At LOGON, we work together to design a setup that makes the most of the GZHW 20SPL while confirming your vehicle model, available space, the music you usually listen to, and the sonic direction you want.

If you’re thinking, “I want more punch, but I don’t want to make the cabin cramped,” “I want to add a little more depth to my factory audio,” or “I want to hear it naturally as music—not just more bass quantity,” please consult us once. Let’s tune it into bass that you can enjoy comfortably, including installation and adjustments tailored to your vehicle.

Main Specifications / Specs

【Basic Information】
Product name: GZHW 20SPL
Type: Subwoofer
Cone size: 8 inches (20cm)
Voice coil: 1Ω DVC (dual voice coil)

【Structure / Materials】
Cone: Reinforced paper cone
Basket: Aluminum die-cast basket

【About Installation】
The mounting method, box volume, and amplifier pairing vary depending on the vehicle’s space and your existing system. We will guide you after confirming the actual vehicle and your intended use.

Shop owner Komizo