Impedance in Speakers: How Does It Affect Audio Quality and Performance?

Question

Hello.
I wanted to know what impedance is. I searched on google but did not find a satisfactory answer. I know this is resistance, but I don't know how it relates to the sound produced by the speakers.
Thanks in advance for your help

Pyroaniah · Accepted Answer

Not all of them are stronger ... ehh ..
1. Whether a speaker is 4 or 8 ohms does not change the amount of heat it can dissipate
2. the amplifiers are voltage-controlled, i.e. they are controlled by the power resistance. That is why the amplifier says: 100w 8ohm (home) or 400w 4ohm (rather already on stage)
This is how much each amplifier will deliver with this number of ohms.
Connecting differently than it is adapted is pointless because a.you burn it b.it will give half power (for gzeho)
And impedance is the resistance to alternating current. It is not equivalent to resistance because the loudspeaker has a coil, and as you probably know the coil is an active element for alternating current (audio)

F4T4L · Answer

U = Z * I

Masster · Answer

No offense, but you print stupid things, impedance is the resistance to the wave, that is for the variable component. Z = 1 / RW in audio equipment, the higher the impedance, the less current will flow from the amplifier and therefore less power will be distributed.

gzeho.p · Answer

We can say that impedance is the equivalent of resistance, but for alternating current (you can probably say so) the resistance in the case of direct and alternating current is constant and the impedance depends on the frequency of the signal.

I think that it cannot be said that the higher the impedance, the greater the power (in the case of standard audio equipment), theoretically it is so, but in practice the audio equipment is not current-coupled, but voltage-coupled (I mean the signal waveform is the voltage, not the current), and therefore in the case of a normal amplifier, the increasing speaker impedance with the frequency will reduce the value of the current flowing through the loudspeaker and therefore the power output by this loft.

Regards

boruta_m · Answer

OK thanks

k3048 · Answer

I see. So if I have a loudspeaker with a power of 300W and an impedance of 8? and 4?, this 8? will be stronger? no

Masster · Answer

As for the current, the 4? speaker will withstand a larger one (it will flow through it) at the same voltage.

gzeho.p · Answer

Well, not necessarily because:

If the amplifier is 300W 8 ohms, you will have 300W of power on an 8 ohm speaker, and on a 4 ohm speaker, it will be around 600W, but you will burn the amplifier.
Which speaker to use depends only on what the amplifier is designed for, if you have an 8 ohm amplifier, you cannot connect a 4 ohm amplifier because you will burn the amplifier, and again if you connect an 8 ohm speaker to the 4 ohm amplifier, you will have only half the power.

boruta_m · Answer

thanks for all now i know

glen1 · Answer

and I have a question, if I have an amplifier that has 8ohm at the speaker outputs, is there a risk of damaging any of the equipment by connecting the 6ohm?

Pyroaniah · Answer

What kind of amplifier is it? if this is a Prlowish box, it has no prolem, like a Chinese mini-tower, do not turn the knob above 2/3 of a turn and it will be approx.

glen1 · Answer

thomson dpl-560 receiver and want yamahy nsp-110

Pyroaniah · Answer

Considering that it is quite powerful equipment, I would not risk it, or I would count the exact volume at which the thomson volume knob is set at 6 ohms and will give its 300w. And he marked it as max on the knob, of course. Ev. interfering with the amplifier itself and the use of an additional resistor will prevent an accident

tomaszo · Answer

Everything is clear ... I close.

Impedance in Speakers: How Does It Affect Audio Quality and Performance?

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