The manual states a dedicated 20A circuit is recommended for the 755. My HT is in my family room which is on a 15A circuit shared by all the HT equipment as well as room lights. Does anyone have experience they can share when running the 755 in this type of power situation.

I did a search and found the following, which is a partial answer: "Also, something to keep in mind is the difference between max rated load and real-world load. 1800W is the maximum that can be provided by a single 15A residential receptacle circuit, if I remember correctly, so if the 755 ran at a constant 1800W it would require its own dedicated circuit just to keep from tripping the breaker. In reality, the load will be significantly lower than that."

I suppose that if everything I have on one 15A circuit were to pull the max all at once, the equipment would need about 30A, yet I have not tripped the breaker once. The bottom line is that the sum of my gear averages about 20% of the sum of the rated maximum consumption. Even during rare moments when I purposely listen at uncomfortably loud levels, my peak demand has neither tripped the mains circuit breaker, nor tripped the protection in the power strips. And no, the lights have not ever dimmed because of power demands from the audio gear.

If you wish to be cautious, yes, go with a dedicated circuit. Some people swear by them. Many of us get by without them.

A question along these same lines. When I built my house I had them install a dedicated circuit for my 755. However, I just noticed they installed a 15 amp breaker on the line. Would I benefit from switching the 15 amp breaker to a 20 amp? I have never tripped the 15 amp.

The capacity of the circuit breaker is based on the rating of the wiring carrying the current from the breaker. Unless the wiring that was installed is rated for 20 amps or more, merely changing the breaker from 15 amps to 20 is not an option that keeps you within code.

If you are concerned with the sum total of the current being drawn via that breaker, a qualified person can measure the current being drawn under maximum conditions and advise you.

To add to bestbang4thebuck's response, I'd suggest that 15A is almost certainly just fine.

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the 755 being played at extremely loud levels is drawing around 4 to 5 amps, so 15 a 15 amp ckt. should not be a problem at all, unless you have several devices pulling high current on that circuit.

I had the same question when I bought my amp as I was concerned about running my entire room off a single 15 amp breaker. I usually keep my computer running ( approx 250 watts ), a large screen tv, the HT system including the LFM-1 subwoofer and 755 amp, etc etc and it gets quite loud at times and i have never blown a circuit breaker!

Bandit. I'm not entirely clear on your response but it appears to me that you are recommending that a person go to their fuse/breaker box and just randomly replace a fuse/breaker with a higher rated one? If that is indeed what you are saying this has to be by far the worst advise I have ever seen posted on any internet board! For god's sake man, are you serious? Circuits are designed based on National Electrical Code and/or local codes. These codes have been developed over the course of the last century to protect people and property. The fuses/breakers are spec'd out for a very good reason, to keep your house from burning down. Overloading a circuit intentionally while impairing the safety net built into that circuit is at best foolhardy and at worst a criminal act that could get people hurt or killed.

I'd have to confirm with my EE co-workers to be certain, but if your 14/2 wire is only rated for 15A then you would want to use a breaker that was rated for 15A (or less, assuming you could find a 10A breaker). The idea is to count on the breaker tripping before the amperage in the line gets higher than the wiring and devices downstream are rated for. With a 20A breaker on a circuit that uses wire rated for only 15A, you could exceed the wire's rating without tripping the breaker.