My monitor turns off for a second when I turn on speakers

[mjp93]

I recently bought second monitor for dual monitor setup.

current setup:

Old monitor - hooked up via VGA
New monitor - hooked up via HDMI

Now when i turn on my external speakers, The new monitor goes black for 1 SEC and then comes back on.
New monitor has in-built speakers.

Nothing happens to old monitor.

Is it normal considering electromagnetic disturbance?

Or i should be checking for a problem?

 

[TheloniousBreskin]

what else is plugged into the outlet? if you've got a computer, a sub, two monitors, and speakers, you might be maxing out the wattage just for a moment when the amp turns on.

 

[mjp93]

what else is plugged into the outlet? if you've got a computer, a sub, two monitors, and speakers, you might be maxing out the wattage just for a moment when the amp turns on.

Desktop , two monitors , modem , router , speakers are connected.