Originally posted by DirtRider
I have run my system loud enough to shut off the receiver now. My klipsch reference rp3 mains, rc3 center, and rs35 surrounds are efficient but it will shut off in about 5 minutes if I crank it all the way up. Granted that is quite loud. Certainly enough to get the neighbors attention (and the police too).
I never did understand the db rating on the screen though. Why does it start in - and then go up to +4.0 on my dvd source and only 0 or +1 on other sources? What does that statistic actually mean?
How do I know how much is too much for the speaker? The mains are rated at 110 watts max continuous (300 peak) at 8ohms and the receiver is 120 watts per channel but as I understand that is never truly attained. This means with the receiver turned all the way up I am probably at about the max my speaker can handle anyway right? Is it actually safe to run a speaker at the max for some time?
There has to be something to do with the signal strength on the line as well because -20 is not always the same level of sound on all sources.
Okay, I'll give it a try.
First of all, is there a reason that you would run the system full bore on a regular basis? Unless you have a really HUGE room I don't see how you would need to tax the equipment that hard.
The decibel number on the screen will vary depending on the input signal level/source and for analog multi-channel input playback for SACD depending on how much adjustment you've made to output levels on the DVD/SACD player.
It's always desirable to have more power than the speaker is "rated" for as opposed to driving the amplifier at full bore as it will start to clip and that clipping can cause far more damage very quickly to the speaker than "overdriving" them with too much power. Hopefully the 3805 will go into thermal protection mode and shut down before the speaker is damaged.
Is it possible that the 3805 is over-heating? Does it have good ventilation?
As efficient as Klipsch speakers are, I find it hard to believe that it is necessary to crank the 3805 all the way up to listen at a "normal" level, say 78-85db with maybe 100-105db peaks.