※Since the left and right diaphragms are different, it is inexpensive. Altec Green 802D. You can experience the light, penetrating sound typical of Altech. The exhilarating, straight sound in combination with the 511B, is attractive, as used on the A7. (TAMURA Eiji)
Maintenance information: 2026.3.19 Maintained (the coil bobbin is rounded out, penetrating adhesive penetrates into the coil float. Magnetic circuit slit maintenance → magnetic circuit slit cleaning and anti-corrosion treatment. Operation check → enter a sine wave and confirm the loss of ions. (Diaphragm centering adjustment implemented to stop noise)
Accessories: none
Main specifications: impedance 16 ohms frequency band 500 to 22 kHz efficiency 110 db 120 x 100 mm 3.4 kg