Connecting 4 Ohm Speakers to Yamaha AX-540 Amplifier: A Comprehensive Guide

Question

Hello. I have a problem connecting the speakers to the amplifier. The speakers are 4 Ohm and the amplifier also has the same impedance, but I don't know which channels they are for because it is not clearly visible in the photos. There it says in the parameters of this amplifier that it has...

Anonymous · Accepted Answer

Serial connection - what else to write?
You connect the "+" of one speaker to the "-" of the other. So you are left with two free ends - the "-" of the first and the "+" of the second. You treat these ends as the terminals of the loudspeaker (the resultant one - because it is made of connecting two single speakers), and connect them to the amplifier terminals. Of course, A or B. The choice is yours...
Regards.

ajpier · Answer

You have 4 speaker outputs and the same number of speakers. Why put them together.

cwanish · Answer

A or B 4Ohm/speaker A + B probably 8 or 16 Ohm/speaker I guess 4 ohm speakers connected to the outputs of an 8 or 16 ohm amplifier will sound poorly. That's what I've heard

ajpier · Answer

If you connect 4Ω speakers to 8 or 16Ω outputs, there may be a problem and it is not about the volume of the music but about damage to the amplifier.

cwanish · Answer

Yes, that's right. Did I connect it correctly? (see diagram)

Grzegorz Markowski · Answer

On the back panel of this amplifier, under the speaker terminals, it is written:
A or B: minimum 8Ω speaker
A + B: minimum 16Ω speaker

And who to believe?

You connect the speakers in pairs in series and connect the pairs of speakers to the A or B terminals.

GM

ajpier · Answer

If the speakers in the picture have 4Ω, connecting two in parallel will give you 2Ω, which is not good. Use all 4 exits, i.e. A+B.

Grzegorz Markowski · Answer

How does this relate to the description of the speaker terminals on the rear panel of the amplifier? GM

cwanish · Answer

Wait a minute, I don't understand something here... why is it written in the parameters of this amplifier 2x110W for 4 ohms? So I can't connect these 4 ohm speakers? and this is what it wrote in the description on Allegro when I bought the amplifier ...The rated power of the amplifier is 2x110W on a 4ohm load,... Added after 9 [minutes]: so what?

Grzegorz Markowski · Answer

Certainly not like that. Look at the photo GM

cwanish · Answer

well, I connected it correctly. The column is L on the left and R on the right. so what if I connect my 4 speakers, will they play? does this amplifier have impedances of 8 and 16 ohms?

jockey7o2 · Answer

Let's start with the fact that the AB switches switch zones, are you sure that two zones work at the same time? I have a Kenwood amplifier and zone A or B works, never together!

Pablo1964 · Answer

It will play, but probably for a while and at best it will turn off.

Anonymous · Answer

What is there to discuss? A or B: minimum 8Ω speaker A + B: speaker minimum 16Ω And all clear. The amplifier can operate with a load of 8 Ohms per channel, and the additional (B) outputs are used to connect a possible second pair of speakers - provided that the total load resistance (seen by the amplifier) is not lower than 8 Ohms. And hence the second line in the notation A + B: minimum 16Ω speaker. Simply put, when both pairs of speakers are connected, they are connected in parallel in the amplifier itself... Now, don't ask me to give you formulas for calculating the resultant resistances when connecting resistances in parallel and in series. ... My friend has 4 Ohm speakers and in order not to burn (overload current) the power amplifiers, he can ONLY connect them in SERIES. That is, two speakers from one channel in series and the remaining ends to the amplifier, and similarly with the second channel. Any other connection of these speakers will create a new topic in the Service section... I have a Yamaha AX-540 amplifier, I connected 4 speakers to it and it burned down. Why? Regards.

cwanish · Answer

That is, two speakers from one channel in series and the remaining ends to the amplifier, and similarly with the second channel.

hey, sorry to be intrusive, but I've read this sentence several times and I still don't understand how to do it. Can you draw it out for me?

cwanish · Answer

So it will look like this? and with such a connection I will not lose their power? ps. Thank you for your help. and to think that a year ago I graduated from Electronics Technical School; Mr

Anonymous · Answer

Exactly. And to think that I graduated from Electronics Technical Secondary School a year ago - I wouldn't even go out of my way... it doesn't reflect well on my level... I just don't know if it's the level of learning or yours... Regards.

Connecting 4 Ohm Speakers to Yamaha AX-540 Amplifier: A Comprehensive Guide

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