Originally Posted by Timmerica
How hot does this receiver get? Do you think it would be safe to place in a closed cabinet? Thanks!
I posted this information much earlier in the thread, but here it is again.
I used a digital thermometer to check the running temperature of the 1909. After running the 1909 at -18dB for about 2 hours, the temperature varied between 104 F and 106 F. The ambient room temperature was 78F, so the temperature rise was 26F – 28F. By way of comparison, the temperature rise of the Onkyo 606 I had (and subsequently returned) was 52F.
My 1909 is in an open cabinet, with 8" clearance on the sides and 5" clearance on the top and back. Given the fairly low temperature rise of the 1909, it seems safe enough to put it in a closed cabinet, as long as there is reasonable clearance.Power Consumption
I also measured the power consumption of the 1909 using a Kill-A-Watt meter.• Standby, HDMI Control OFF: 0 watts (Denon specs say 0.3 watts)
• Standby, HDMI Control ON: 30 watts
• ON, volume = -40 dB: 69 watts
• ON, volume = -20 dB: 72 watts
• ON, volume = -10 dB: 83 watts
• ON, volume = 0.0 dB: 110 watts
I have a 5.1 setup, with 8 ohm speakers and a powered SW.
With the 1909 ON, the power consumption varies quite a bit at each volume level, depending on the input source and the material. The readings I listed are roughly the maximum I saw at each level. I didn't see any significant difference in the power consumption with Dynamic EQ/Vol On or Off.
As I suspected, turning HDMI Control to ON does draw some power, but not very much, only 30 watts. Before I made the measurements, I was thinking that there might be an economic incentive to leave HDMI Control OFF. There is, but not very much. In a full month of 24/7 operation, leaving the HDMI Control ON would consume about 22 KWH. At $0.12/KWH, that works out to $2.68/month. If you're off the grid and counting every KWH, you might not want to enable HDMI Control. For everyone else, it's a question of whether the convenience of HDMI Control is worth $2.68/month +/-.