Royal Sangyo Co., Ltd. » 製品群紹介 http://www.royalsangyo.co.jp/en We respond to a full range for customer needs, from speaker development and design, to manufacturing. Fri, 05 Dec 2025 00:04:17 +0000 ja hourly 1 http://wordpress.org/?v=3.5.2 Metal diaphragm (for compression driver) http://www.royalsangyo.co.jp/en/archives/44 http://www.royalsangyo.co.jp/en/archives/44#comments Mon, 11 Sep 2023 03:22:37 +0000 plust@H270003 http://www.royalsangyo.co.jp/en/?p=44 gun01

Edge shape can be tangential, roll, or special.

We lead the industry in shaping precision, including edges

]]> http://www.royalsangyo.co.jp/en/archives/44/feed 0 Metal diaphragm (titanium) http://www.royalsangyo.co.jp/en/archives/46 http://www.royalsangyo.co.jp/en/archives/46#comments Mon, 11 Sep 2023 03:22:53 +0000 plust@H270003 http://www.royalsangyo.co.jp/en/?p=46 gun02 

Complex shapes can be formed

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Complex shapes can be formed

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]]> http://www.royalsangyo.co.jp/en/archives/50/feed 0 Metal diaphragm (Cone type, deep drawing) http://www.royalsangyo.co.jp/en/archives/52 http://www.royalsangyo.co.jp/en/archives/52#comments Mon, 11 Sep 2023 03:23:33 +0000 plust@H270003 http://www.royalsangyo.co.jp/en/?p=52 gun05

]]> http://www.royalsangyo.co.jp/en/archives/52/feed 0 Cloth diaphragms http://www.royalsangyo.co.jp/en/archives/54 http://www.royalsangyo.co.jp/en/archives/54#comments Mon, 11 Sep 2023 03:23:48 +0000 plust@H270003 http://www.royalsangyo.co.jp/en/?p=54 gun06

]]> http://www.royalsangyo.co.jp/en/archives/54/feed 0 Typical types of surface treatment http://www.royalsangyo.co.jp/en/archives/56 http://www.royalsangyo.co.jp/en/archives/56#comments Mon, 11 Sep 2023 03:24:00 +0000 plust@H270003 http://www.royalsangyo.co.jp/en/?p=56 gun07

Edge Material Coating or treatment
Polyester
silk
titanium
aluminum		 Coating or treatment
Urethane, acrylic, melamine, rubber, phenol coating, phenol coating
IP (Ion Plating), oxidation treatment DLC (Diamond Like Carbon)
Ceramic coating

 

*For the edges in the photos, the material is polyester with phenol coating.

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*We offer a wide range of colors; the above are some examples

]]> http://www.royalsangyo.co.jp/en/archives/58/feed 0 Diaphragm ASSY 1 (for compression driver) http://www.royalsangyo.co.jp/en/archives/60 http://www.royalsangyo.co.jp/en/archives/60#comments Mon, 11 Sep 2023 03:24:24 +0000 plust@H270003 http://www.royalsangyo.co.jp/en/?p=60 gun09

]]> http://www.royalsangyo.co.jp/en/archives/60/feed 0 Diaphragm ASSY 2 (for tweeter) http://www.royalsangyo.co.jp/en/archives/115 http://www.royalsangyo.co.jp/en/archives/115#comments Fri, 22 Sep 2023 06:28:47 +0000 plust@H270003 http://www.royalsangyo.co.jp/en/?p=115 gun10

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