My first Fullrangehorn I built with the driver SFR175A according to a construction proposal of the Hungarian manufacturer Sonido. Its chassis (I have experience with 17cm and 20cm full range speakers with Alnicomagnet) are made by hand, have a very light paper cone and a wooden phase plug. The sound of these drivers is just great, whether in a backloaded horn or with an open baffle, especially on a tube amp, these drivers show their outstanding qualities. In addition, the owner of the company is a very kind guy, who likes to help.

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