It is inexpensive because there is a hang on one side magnet part. It is a famous woofer used in audio equipment such as airports. It is a full range designed specifically for the voice band. The low band has the property of spreading in all directions. It corresponds to a wide range of genres, from classical to jazz (Yukishi Fujisawa)
Maintenance Information: 2021.4.21 Sweep Tested
Accessories: None
Main Specifications: 4 inch x H54mm 8Ω 16 W 65-15,000Hz 90dB 0.94kg