Защита для усилителя басов ударные детали НЧ-динамик мини практичный порт отверстие сабвуфер ABS Профессиональный барабанный вставной инструмент

Features:
Tuning port designed for bass drums.
It can be expand your low end frequencies.
The bass drum enhancer made of environmentally friendly ABS, the gold nine is durable and not easily deformed.
Enhances the bass audio advancement, concentrates the air in the drum cavity, and compresses it inside, making the bass part more powerful.
The effect is adjustable, just adjust The drum of the drum can be tight.
Specifications:
Material: ABS, rubber
Color: white, red, black
Size:about 17x10cm
Package included:
1pc x loudspeaker
Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 0.5-2 cm differences due to manual measurement.