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不器用なのにモノ作り大好きな中島の・・・その4


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   結局のところ駄作に終わったのに

名前だけは立派につくろった「DHD」ですが

(※DHD:ダイレクト・ホーン・ドライブの略でして・・・)

周囲からは全く無反応なのにもかかわらず

  早くも「002」製作に踏み切りました

「001」設計での最大の間違いは

     ◇出ていない低音を出そうとしたこと

「002」を設計するに当たっては

     ◇出ている音をバランスよく増幅すること

つまり・・・

          「欠点の克服より長所を伸ばす」

という教育思想にも似た設計なのでございます

(おぃおぃ・・・それは大袈裟だろ~!という声が・・・)

性懲りもなく今回も加工に難のある

             2㎜厚のボール紙を使用します

(強度のあるカッチリとした仕上がりが魅力でして・・・)

前回同様 大雑把な設計図を作り

   それを基にボール紙に線引きしました

 1設計・図面

高音のロスを最小限に抑えるべく

    ホーンの構造は短めとしました

さて 最初は難題の切り取り作業!

    ん?設計図に無い細かい部品が !?

 1謎の部品

オーディオに詳しい方なら もうお分かりですね?

     そうです! 「音響レンズ」です!

採用に踏み切ったのは

    その効果に期待するというよりは

「あまりにシンプルな外観にインパクトを!」

       という思惑からです

まずはその音響レンズから組立てを・・・

 1音響レンズ

次に片方の側面に作った部品を張り付けて参ります

 1内部構造

全ての部品を組み立てたらもう一方の側面と底板を

    張り付けて~

 1完成!

  それでは早速試聴してみましょ~♪

      う~ん・・・予測どおりの音です・・・

    高音域は「シャキシャキ」鳴っていますし

    全体の音量も大きくはなっているのですが

良くも悪くも音源の内臓スピーカーの延長線上で

    少々ヒステリックな音質です・・・

曲調にもよりますが中音域以下の心地よさ

    という意味では「001」の方が上かも・・・

それでも~仕上げの塗装はしっかりと!

1塗装済み002

コンパクトなサイズながら

    音響レンズが迫力あるデザインでしょ?

(只今・・・自己満足の海原で溺れております)

えっ?

低音増強で鑑賞に耐える音にするって話は

    どうなったのかって?

んん・・・・・・・・・・・・・・・・・・・・・・・

・・・・・・・・・・・・・・・・・・・・・・・・・