* There is no problem with operation, but since the cone paper is folded, wrinkled, etc., it is inexpensive and is currently sold. Richard Allen's double cone type full range unit. With a deep, narrow range, you can enjoy the sound of sitting firmly on your back (Oikawa Tetsuji)
Maintenance information: 2023.2.15 operation confirmed
Accessories: none
Main specifications: 8 ohms playback frequency band 45 to 15,000 Hz output sound pressure level 91 dB baffle opening diameter 178 mm weight 1.8 kg