queequeg115c71
Responses from queequeg115c71
| JM Labs Electra 937Be vs.Diva Utopia Be vs. Mezzo It is true that Yamaha experimented with Beryllium in the late 70's. The difference between the Yamaha drivers and that of the Utopia and the Electra Be's is not the material however the application of the material. Yamaha used vapor deposition wh... |