Samsung Home Theater HT-X40

If it's built in and you're using speakers that are special, there are a few things.

- Does the unit have sufficient ventilation?

- Are the speakers you're using 4 ohm and possibly the HT unit won't handle 4 ohm?

- PROTECTION generally refers to the amp section so that could also be overheating or you could have a short in the speaker wiring

Bryan

Make sure the speaker wires aren't in contact with one another. This sounds like a short,though if it's playing for a while and then fritzes out, it's more likely the amp overheating.

My first thought was a short as well. That's the only thing that's ever sent my amps into protection.