* Since the dent on one side of the diaphragm and one part of the speaker terminal have been replaced with a push type one, it is inexpensive. High efficiency driver unit used in A7-500, etc. Further wideband playback is possible by combining it with the 511B sectional horn. Serial 7190, 7194 (Fujisawa Yukishi)
Maintenance information: 2026.6.14 Maintained (driver disconnection repair, centering adjustment, bush-type terminal installation.)
Accessories: No accessories
Main specifications: Alnico 8Ω, allowable input, 50W, 105dB, frequency characteristics, 500Hz to 20kHz, W114 x H114 x D94 mm, 3.0 kg