Jmcgrogan: If you've never had your Threshold powered up for at least 3 days consecutive, you've never heard what it can do. Honest.
High bias designs are the most sensitive to thermal cycling / sonics. The lower the bias on the amp, the less differences that you'll notice if cycling power off an don as needed. Higher biased amps ( these run hot at idle ) will always sound better when leaving them turned on. I do agree that it is a good idea to kill the power to them if you will not be around for an extended period of time or if you are expecting severe storms.
I have six amps ( four Threshold products and two Perreaux's ) in one room that idle at about 120* - 130* each. These stay on all the time.
I have two amps ( modified Kinergetics KBA-202A Platinum mono-blocks ) that idle at about 110* in my office system. These stay on all the time.
My HT amps ( Sunfire Signature & Sunfire Cinema Grand Signature ) stay on all the time although these draw VERY little current at idle. As such, they run cool to the touch unless pushing them hard. I could power these down and not really notice much of a difference after about a half an hour of use.
My bedroom amps ( two Quad 405's ) stay on all the time.
My tube based system is powered up and shut down as needed. I am a firm believer in letting tubes "heat up" prior to passing signal. I also let them "heat down" prior to shutting off.
So, do i get the "wattage waster" award or what ??? : ) Sean
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High bias designs are the most sensitive to thermal cycling / sonics. The lower the bias on the amp, the less differences that you'll notice if cycling power off an don as needed. Higher biased amps ( these run hot at idle ) will always sound better when leaving them turned on. I do agree that it is a good idea to kill the power to them if you will not be around for an extended period of time or if you are expecting severe storms.
I have six amps ( four Threshold products and two Perreaux's ) in one room that idle at about 120* - 130* each. These stay on all the time.
I have two amps ( modified Kinergetics KBA-202A Platinum mono-blocks ) that idle at about 110* in my office system. These stay on all the time.
My HT amps ( Sunfire Signature & Sunfire Cinema Grand Signature ) stay on all the time although these draw VERY little current at idle. As such, they run cool to the touch unless pushing them hard. I could power these down and not really notice much of a difference after about a half an hour of use.
My bedroom amps ( two Quad 405's ) stay on all the time.
My tube based system is powered up and shut down as needed. I am a firm believer in letting tubes "heat up" prior to passing signal. I also let them "heat down" prior to shutting off.
So, do i get the "wattage waster" award or what ??? : ) Sean
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