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

  • Thread starter Thread starter Hyperspace2
  • Start date Start date
  • Tags Tags
    Mystery Work
Click For Summary

Discussion Overview

The discussion revolves around the feasibility and implications of using a two-type speaker design, specifically focusing on grounding one side of the speaker coil. Participants explore whether this configuration would function effectively and the potential effects of grounding in relation to audio output.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant proposes a schematic for a two-type speaker, questioning if grounding one coil while feeding a signal into the other would work.
  • Another participant warns that moving coil speakers should not have DC voltage across the coil, as this could limit audio output and cause distortion.
  • A participant mentions that if a capacitor is in series with the speaker, grounding one side may be acceptable.
  • It is noted that in some circuits, speakers are connected between two amplifier outputs without grounding either side.
  • One participant expresses a desire to design a simple paper cup speaker and questions the effects of grounding one side.
  • Another participant asserts that grounding does not matter as long as an AC signal reaches both input connections of the speaker.

Areas of Agreement / Disagreement

Participants express differing views on the implications of grounding one side of the speaker, with some asserting it is acceptable while others caution against potential issues. The discussion remains unresolved regarding the effectiveness of the proposed speaker design.

Contextual Notes

Participants do not fully account for the role of the amplifier in their discussions, and there are varying assumptions about the circuit configurations and their effects on audio performance.

Hyperspace2
Messages
84
Reaction score
1
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?
 

Attachments

Last edited:
Engineering news on Phys.org
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.
 

Similar threads

Replies
9
Views
4K
Replies
10
Views
3K
  • · Replies 37 ·
2
Replies
37
Views
5K
  • · Replies 42 ·
2
Replies
42
Views
6K
Replies
35
Views
11K
Replies
6
Views
4K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 26 ·
Replies
26
Views
3K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K