The Mystery of Two-Type Speakers: Will It Work?

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The discussion revolves around the feasibility of using a two-type speaker design, where one coil is grounded while the signal is fed into the other. Concerns are raised about whether this setup will work without causing distortion, as moving coil speakers should not have DC voltage across the coil. It is noted that grounding one side of the speaker is acceptable if a capacitor is in series within the amplifier. The conversation also emphasizes that the speaker must receive an AC signal at both input connections, regardless of grounding. Ultimately, the grounding approach depends on the specific circuit design and amplifier markings.
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I have uploaded the pic of schematic of two type speaker. The left side of pic shows the usual one speaker where sighnals are fed at both the wire of the coil.

1) I assume the right side of the pic(speaker)(which I imagine) should work , where I have grounded one of the coil and ths signal is fed into other. I am confused shall it work .

2) If it works, how shall I ground the wire?
 

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Moving coil speakers should not have DC voltage across the coil. This causes the speaker cone to move towards one end of its travel and this may limit the audio available from the speaker and could cause distortion.

So, if your speaker has a capacitor in series with it, inside the amplifier, it is OK to ground the other side of the speaker.

In some circuits, the speaker is placed between two outputs of an amplifier and neither side is grounded.

Just follow the markings on the amplifier. These will tell you how to connect the speaker to the amplifier.
 
vk6kro said:
Moving coil speakers should not have DC voltage across the coil. This causes the speaker cone to move towards one end of its travel and this may limit the audio available from the speaker and could cause distortion.

So, if your speaker has a capacitor in series with it, inside the amplifier, it is OK to ground the other side of the speaker.

In some circuits, the speaker is placed between two outputs of an amplifier and neither side is grounded.

Just follow the markings on the amplifier. These will tell you how to connect the speaker to the amplifier.

Sir , for now I am not taking amplifier into account. Actually I was going to desighn very simple paper cup speaker.
I searched all over interne , saw sighnal fed into both side of the wire?

What woul be effect of one side ground actually?
 
It doesn't matter if the speaker is grounded.

If one side of the speaker is grounded and one side of the amplifier output is grounded, then these points are considered as joined together.

There just has to be an AC signal reaching the two input connections of the speaker.
 

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