re: I have a Denon receiver, about a year old and

quote:

---

You don't say. He probably has no idea, which isn't a problem. Talking about ohms with someone (no offense at all, OP) who doesn't get electronics isn't productive to help them.

Always go for the simplest answer first.

---

The simple answer MAY be ventilation but given the fault caused a load center issue with the breaker it is better to fully diagnose the fault especially when it takes a long time to reproduce. Denon receivers are not known to run hot like say a Onkyo so they work better in enclosed spaces. Asking the nominal impedance of the speaker gives a view into how much a person knows. If he doesn't know then I would ask the Brand and model and look it up myself. If one assumes like you did he doesn't understand the electrical properties of his system he may be presenting way too much of a load to the receiver. The answer may be as simple as ventilation but it may be as simple as he is running the speakers in series off a single amp and presenting too much of a load which can cause overheating even with adequate ventilation.