Goto SG-505 Compression Driver（ゴトーエスジー505コンプレッションドライバー）
Goto SG-505 Japan Vintage Iconic Compression Driver。Goto独自Compression Driver技法+Japan Audiophile Horn Speaker Reference+Vintage Heritage搭載。
概要
Goto SG-505 Compression DriverはGoto Unit公開のSG-505 Japan Vintage Iconic Compression Driverで、Goto Unit は1972年Japan東京創業のAudiophile Compression Driver Iconic Brand。Goto Unitは1972年〜54年Japan Audiophile Compression Driver Heritage(後藤精弥(Goto Seiya) Founder + Audiophile独自Compression Driver Engineering起源 + Japan Audiophile Horn Speaker Reference Iconic起源 + Audiophile界隈Goto Compression Driver認知度絶対)+ Goto SG-16/SG-38/SG-505/SG-555/SG-700等のGoto Compression Driver Family展開、 Audiophile Japan独自Compression Driver Iconic地位 + Audiophile界隈Goto認知度絶対 + Goto独自Permendur Diaphragm + Field Coil技法独自起源 + Audiophile Horn Speaker DIY Heritage継承価値Proposition。SG-505はGoto SG Series Mid-Tier Compression Driver Position(Goto Mid-Reference Compression Driver + Audiophile Reference Compression Driver Goto Iconic Heritage)、 「Japan Goto独自Compression Driver技法 + Audiophile Horn Speaker Reference + Vintage Heritage」 のGoto独自Engineering Maximization。「Permendur Diaphragm独自素材」 はSG-505 Goto独自Iconic Engineering、 Mass Market Compression Driver(Aluminum/Titanium Diaphragm Standard)対比 Permendur Diaphragm(Goto独自Permendur磁性合金Diaphragm + Audiophile独自Diaphragm素材 + Goto独自Material Engineering Heritage継承)+ Audiophile界隈Goto Permendur認知度絶対 + Audiophile Permendur Iconic地位継承 + Goto独自Diaphragm素材独自Iconic。「Field Coil(励磁型)技法独自Iconic」 はSG-505 Audiophile Engineering、 Mass Market Compression Driver(Permanent Magnet Standard)対比 Field Coil(励磁型 Permanent Magnet非使用 + 直流電流励磁磁力発生 + Audiophile Vintage励磁型Driver Iconic技法 + Goto独自Field Coil Engineering Heritage継承)+ Audiophile界隈Field Coil認知度継承 + Audiophile Vintage励磁型Iconic地位継承価値Proposition。「Made in Japan東京 Hand-built」 はSG-505 Brand価値、 Mass Market Compression Driver対比 Japan東京 Hand-built + Goto Unit 54年Heritage継承 + 後藤精弥 Founder Heritage継承価値Proposition + Audiophile Japan Cult Iconic地位継承 + Goto Unit Cult Iconic Niche Brand起源継承価値Proposition + Audiophile Japan Audiophile Horn Speaker DIY Reference地位継承。価格 ¥600,000+/ペア(2024年日本国内 SG-505 Compression Driver単体)はAudiophile Vintage Compression Driver Reference Position。
主な特徴・仕組み
- Permendur Diaphragm独自素材: Goto Iconic
- Field Coil(励磁型)技法独自: Permanent Magnet非使用
- Direct Radiator Iconic技法: Audiophile Reference
- 後藤精弥 Founder Heritage: 1972年創業
- Made in Japan東京 Hand-built: 54年Heritage
- Audiophile Cult Iconic Niche Brand: Japan独自
- Audiophile Horn Speaker DIY Reference: Driver供給
- ¥600K+/ペア Vintage Reference: Audiophile価格
関連用語との違い
Western Electric WE 555/Klipsch等汎用Compression Driverとの違い: WE 555(US Western Electric 1920年代 Vintage Compression Driver起源)+ Klipsch等(汎用Permanent Magnet Compression Driver)はVintage Compression Driver起源/Mass Market、 Goto SG-505(Japan Goto独自Permendur Diaphragm + Field Coil(励磁型)Vintage技法 + Hand-built Niche)はJapan Cult独自Engineering + 励磁型 + Permendur Diaphragm + Niche Brand位置 + 異Region/Architecture(US Vintage/Mass Market vs Japan Niche励磁型)。WE Vintage → WE 555、 汎用Permanent Magnet → Klipsch等、 Japan Niche励磁型 → Goto SG-505。
よくある質問（FAQ）
Q1: Permendur Diaphragm は本当に Audiophile？ A: Mass Market Compression Driver Aluminum/Titanium Diaphragm対比 Permendur Diaphragm(Goto独自Permendur磁性合金Diaphragm + Audiophile独自Diaphragm素材 + Goto独自Material Engineering Heritage継承)+ Audiophile界隈Goto Permendur認知度絶対 + Audiophile Permendur Iconic地位継承価値Proposition + Goto独自Diaphragm素材独自Iconic。
Q2: Field Coil(励磁型) は本当に必要？ A: Mass Market Compression Driver Permanent Magnet対比 Field Coil(励磁型 Permanent Magnet非使用 + 直流電流励磁磁力発生 + Audiophile Vintage励磁型Driver Iconic技法 + Goto独自Field Coil Engineering Heritage継承)+ Audiophile界隈Field Coil認知度継承 + Audiophile Vintage励磁型Iconic地位継承価値Proposition + 別途Field Coil Power Supply必要。
Q3: Goto Compression Driver は完成品？DIY Driver？ A: Goto Compression Driver Single Unit(Driver供給単体販売 + Audiophile Horn Speaker DIY Reference Driver + Audiophile Horn Cabinet User構築前提 + Audiophile Cult DIY Reference地位)+ 完成品Speaker非販売 + Audiophile Horn Speaker DIY Reference Driver供給価値Proposition + Audiophile Horn Speaker DIY独自Niche。
まとめ
- Goto SG-505 = Japan Audiophile Vintage Compression Driver Iconic
- Permendur Diaphragm + Field Coil(励磁型)独自技法
- 後藤精弥 Founder継承 + Made in Japan東京 54年Heritage
- Audiophile Cult Iconic Niche Brand + DIY Reference Driver
- Goto + Permendur + Field Coil + Japan Cult重視User向けVintage Iconic