‘Overhung’ vs. ‘Underhung’ speaker voice coils 

You explained this exceptionally well in a short amount of time, kudos!

This was a great video! I absolutely loved it! 💯

This is such a clear, concise explanation. Well done!

Even though I knew about these terms already, this still gave me some knew insight. Very valuable information put together nicely. Great work!

Hi Thomas, Great effort educating the newlings! Animations can absolutely help to give insight in what is actually hapening inside a woofer. However in my opinion you may have oversimplified it a bit. In an underhung construction, the voicecoil is actually shorter than the magnetic gap height. The animation showed a voicecoil that is still longer than the magnatic gap, which by definition is overhung. Decreasing the coil length in this example would only mean less Xmax or otherwise losing control sooner rather than later. The diameter of the VC doesn't have anything to do with being overhung or underhung, neither does the amount of magnets determine the height of the magnatic gap. This is determined by the height of the top plate and matching pole piece. (a long voicecoil is heavy and thereforre lowers effiency, a large magnet stack can improve BL to regain some efficiency) Although it may be more technical, if a followup is comming, please include a visual representation of Xmax for both underhung and overhung designs.

Interesting video. I actually just got a version of Vance Dickasons loudspeaker cook book and was reading about that. Thank you for taking time to make the video.

One of the best info videos ive seen to date. Thank you for this . I learned something new.

Explanation is unclear. Underhung voice coil means that the coil is shorter than the front plate. And liinear excursion means that: 1. In case of overhung coil front plate is fully within the range of coil wire. 2. In case of underhung coil the coil itself is completely inside the space between the ends of the front plate.

Very nice and clear explained!

I liked, I shared, I subscribed, and I commented.

Nice, thanks for the great info.

Thanks for this!

Awesome info, thank you

Also spider

The video is WRONG. Both examples, the over hung voice coil and the 'under hung' voice coil in the drawings are over hung. An over hung voice coil is longer than the magnetic gap. But an under hung voice coil is SHORTER than the magnetic gap. In both drawings the voice coil was longer than the gap.

You visualizations and explanations are all wrong.