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.
constantin1970 OP Details Discussions Posts This discussion Message User 3 posts 03-20-2022 at 03:24pm Copy Comment URL Report Comment Edit Delete Thank you for your reply. The integrated amplifier was in standby when the temperature was about 102°F . I contacted McIntosh and I was told to send it to service if temperature increases again while in standby.