McIntosh MA9000 temperature in standby

Hello,

My system consists of McIntosh MA9000 with DA2 DAC, McIntosh MT10, Burmester BA31 and IFI Zen Streamer.

I noticed that the temperature of the integrated amplifier (heatsink) is about 102°F (39°C) at a room temperature of 79°F (26°C).

I performed the following test by increasing the volume in 3 steps:

1. 30% volume for 15 minutes: heatsink temperature -106°F (41°C)

2. 50% volume for 15 minutes: heatsink temperature -117°F (47°C)

3. 70% volume for about 15 minutes: heatsink temperature -145°F (62.7°C) - the power was cut off

I would like to know if 55°F (13°C) on top of the room temperature is normal for McIntosh amplifiers in standby.

Thank you in advance for your support

constantin197003-15-2022 11:33am

constantin1970 OP Details Discussions Posts This discussion Message User 3 posts 03-15-2022 at 12:41pm Copy Comment URL Report Comment Edit Delete After power cut off now the heatsink is at room temperature when the amplifier is in standby. Why the temperature was higher before I don't understand.
erik_squires Details Discussions Posts This discussion Message User 16,056 posts 03-15-2022 at 02:01pm Copy Comment URL Report Comment Edit Delete That seems high. What you want to do is a get a power meter and compare the idle power vs. rating. According to Mc the Idle power is < 0.25W. This meter is under $20: https://www.amazon.com/Electricity-Monitor-Voltage-Overload-Protection/dp/B07DPJ3RGB
stereo5 Details Discussions Posts This discussion Message User 6,385 posts 03-15-2022 at 03:53pm Copy Comment URL Report Comment Edit Delete Why don’t you call McIntosh instead of asking people that really do not know?