X5 Owner’s Manual
single blue LED lit. No speaker connected yet. You can go ahead and connect the source and speakers.
The amplifier can be driven
Now that the source component is connected, make sure there is no signal coming from it, probably by turning the volume all the way down.
With the speakers connected, push the front panel button to activate the amplifier. The “Power” LED will come on. You are ready to play music.
Do everybody a favor and try not to have shorted output cables. It happens accidentally all the time, and the amplifier is designed to survive, but I wouldn’t bet the farm on it.
Of course it’s always possible that something could go wrong. If so, don’t get excited, just relax. It’s really aggravating when something like this doesn’t work, we understand, but it will get fixed. We go to a lot of trouble to make products reliable, and the failure rate of our amplifiers is almost
People are interested in how long it takes for these amplifiers to break in. It takes about an hour for them to warm up, and this is where we adjust them first. Then we adjust them again and again over a couple of days, keeping the bias and offset in the sweet spot. Our environment is about 23 degrees Centigrade, room temperature, and the heat sinks will rise to about 22 degrees C. above that, for a heat sink temperature of 45 degrees C.
In your setup the temperature may vary a bit due to line voltage and ventilation, but it is not a big deal. You should be able to put your hands on the heat sinks without discomfort.
The amplifier has a thermal cutout that will disconnect AC power if the temperature exceeds 75 degrees Centigrade. This should never occur in real life.
More things to know: You can remotely operate the
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