https://www.epanorama.net/blog/2025/06/09/bad-amplifier-design/ All about electronics and circuit design Mon, 27 Apr 2026 05:22:17 +0000 hourly 1 http://wordpress.org/?v=3.9.14 https://www.epanorama.net/blog/2025/06/09/bad-amplifier-design/comment-page-1/#comment-1866430 Thu, 04 Dec 2025 07:24:57 +0000 https://www.epanorama.net/blog/?p=197897#comment-1866430 DC flowing through a loudspeaker or transformer causes core saturation, heavy distortion, heat, and risk of damage. Transformers are costly and limit sound quality, and with input impedance under 30 Ω the circuit won’t work properly with most sources—it really needs an amplifier to drive it safely.

]]> https://www.epanorama.net/blog/2025/06/09/bad-amplifier-design/comment-page-1/#comment-1864137 Fri, 24 Oct 2025 04:31:44 +0000 https://www.epanorama.net/blog/?p=197897#comment-1864137 Due to its extremely low impedance sound input of less than 30 ohms, this circuit requires an amplifier in order to function correctly with the vast majority of audio sources.

]]> https://www.epanorama.net/blog/2025/06/09/bad-amplifier-design/comment-page-1/#comment-1856701 Tue, 24 Jun 2025 09:12:12 +0000 https://www.epanorama.net/blog/?p=197897#comment-1856701 Very low impedance sound input is less than 30 ohms – which means this circuit does not work properly with most sound sources, should be driven with an amplifier!

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