Visual Comparison: Fidue A66 and Fidue A65

May 9, 2019 Jürgen Kraus (Calgary, Canada)

The (brown) Fidue A66 is the follow-up model to the revered (copper coloured) A65. Both sport single DDs drivers although with a completely different tuning: The A65 has a V-shaped frequency response and the A66 a more flat one. I purchased the A65 and the A66 is a warranty replacement for a faulty A65 from the Penon Audio Store. A full review of the A66 will follow.

Fidue A66 and Fidue A65 earpieces 1 — The A65 on the left, the A66 on the right.

Author

Jürgen Kraus (Calgary, Canada)
Head-Fier since 2016. He has been known as “Otto Motor” to Head-Fiers, as “Dr. Schweinsgruber” to audiobudget.com users and Youtubers, and as “Brause” to Super Best Audio Friends and the Headphone Community. - For the purpose of confusion, he decided to pose under his real name Jürgen Kraus (“JK”) from now on. - This is a hobby. In “real” life, Jürgen is a professional geologist operating his own petroleum-exploration consulting company Franconia Geoscience Ltd. based in Calgary, Canada. He holds German and Canadian passports. Jürgen had a classical music education from childhood through high school in Germany and he has been following popular music developments since the late 1970s. His understanding of arts and crafts was influenced by Bauhaus pragmatism: “less is more” and “form follows function”.
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