Speaker connection

[Kamranbites]

Open ai view on ohms matching.

[Kamranbites]

On 2/26/2023 at 3:55 PM, HenrySalayne said:

Firstly, there are dozens of reasons why your speakers sound distorted and running too much current through the transistors is not one of them. That's once again nonsense ChatGPT pulled from the internet (great source!).

 

Secondly. that's just a nothingburger. "extended periods of time" and "moderate volume" is not really saying anything. An amplifier running with 3 Ohm instead of the minimum rated 4 Ohm would experience about 33% more power dissipation (at the same output power). Which leads us to an interesting question: why would you connect a second pair of speakers, if you are running at "moderate volume"? A second set of speakers increases the SPL at the same power level by only 3 dB. That's not a lot.

At moderate levels what is stopping you from simply cranking up the amp to match this 3 dB increase?. And there lies the problem: most users connect a second set of speakers to their amp, because it would not go any louder, even if they are listening at "moderate volumes".

Or in other words: if you want to operate a 4 Ohm amplifier "within spec" at 3 Ohm, you are losing 1.2 dB to the increased current. This will leave you a whopping 1.8 dB (at best and ignoring all the interference from two sources) from connecting a second set of speakers.

 

Learnt about my amplifier it supports 3 ohms and 2 ohms too so connecting in parallel may not have major impact