Why do my speakers cut out at the loudest part of a song?

General
1

I’ve been using two 8ohm speakers in parallel for a while and they worked fine, loud and clear. But now, after adding two more of the same speakers, making the total impedance 2ohms (which the amp should handle since it’s rated for 2ohms), I’m noticing a problem. When the volume is high, the speakers cut out for a second during the loudest part of the song, and then they keep playing. The amp stays on because my tweeters, which are connected to another channel on the same amp, continue playing without any cuts. I’m thinking maybe the amp isn’t powerful enough, or it could be something with the connections, but I’m not sure. I didn’t change the old wiring when adding the new speakers, I just hooked them up to the terminal block. All 4 speakers cut out at the same time. When I was only using two, there were some minor distortions but no total cut-outs. Can anyone help with this? Sorry for the long post!

2

What make and model is your equipment?

3

Xan said:
What make and model is your equipment?

Here’s the link with the amp’s details: https://placehold.co/600x400.png

4

@Zane
And here’s another pic: https://placehold.co/600x400.png

5

@Zane
That amp isn’t stable at 2 ohms when bridged.

6

Van said:
@Zane
That amp isn’t stable at 2 ohms when bridged.

Oh, really? Where can I find that info? Does this mean I need to use 4ohm speakers if I bridge it?

7

Zane said:

Van said:
@Zane
That amp isn’t stable at 2 ohms when bridged.

Oh, really? Where can I find that info? Does this mean I need to use 4ohm speakers if I bridge it?

The amp can handle 2 ohms per channel, so when bridged, it’s 4 ohms stable.

8

@Van
Okay, I didn’t think of that. So do you think this is why the speakers cut out at the loud parts?

9

Zane said:
@Van
Okay, I didn’t think of that. So do you think this is why the speakers cut out at the loud parts?

That’s my guess.

10

Van said:

Zane said:
@Van
Okay, I didn’t think of that. So do you think this is why the speakers cut out at the loud parts?

That’s my guess.

Thanks a lot for the help. I think I’ll try running two speakers on each channel, so it’ll be 4 ohms per channel, and see if that fixes it. If not, I’ll have to get a new amp!

11

@Zane
What amp are you using?

12

I just posted the amp details as well.