BRS Posted September 13, 2023 Posted September 13, 2023 Hey I was watching Breaking Bad for the second time last night and my NR-3030 just turned itself off and then on again. I had been watching for about 3 hrs with a short break about the 2.5 hour mark. My projector and Apple 4k TV are on the same power point and didn't cut out, so it wasn't a power issue. I have 7.2.4 set up and volume was set at 54 at the time. The NR-3030 sits on top of a cabnet so good ventilation. Any thoughts on preventative maintenance? Am I pushing it too hard running 7.2.4? It has cooling fans and heat sinks but should I be looking at additional external cooling? Anyone else had this issue on a similar model. I know older Onkyos had HDMI board heating problems but I wasn't expecting it on this model.
Quark Posted September 13, 2023 Posted September 13, 2023 What volume were you running, what speakers and what is your crossover set to? These will all affect how much heat is being generated. 1
BRS Posted September 13, 2023 Author Posted September 13, 2023 38 minutes ago, Quark said: What volume were you running, what speakers and what is your crossover set to? These will all affect how much heat is being generated. I have no reference point/nothing to compare to, to say if its running hot or not. I can put my hand on top of amp with no issue. You have got me thinking though. The crossovers are probably set too low when I consider the crossover points on each speaker. Especially the Fostex fronts and Jamo Centre. I need to get the subs to work a bit harder. I have mix of 8 and 6 ohm speakers and have the impedance on the NR-3030 set to 6ohms. Is that correct? Crossovers set to 80khz all round. FRONTS - Fostex FE103NVs tapered horns - 8ohm/88db CENTRE - Jamo E6cen 6ohm ?db SIDES - Jamo 7.4s 6ohm ?db REARS - Fostex FE83 Spiral horns 8ohm 87db IN-CEILING - I will have to check.
Quark Posted September 13, 2023 Posted September 13, 2023 Those speakers aren't too hard to drive and 80Hz crossover is fine. Setting the impedance on the NR-3030 to 6 Ohm will throttle the power, but in theory reduce the chance of overheating. In practice you may find that setting the impedance to 8 Ohm gives enough headroom to avoid cut-outs.
BRS Posted September 13, 2023 Author Posted September 13, 2023 28 minutes ago, Quark said: Those speakers aren't too hard to drive and 80Hz crossover is fine. Setting the impedance on the NR-3030 to 6 Ohm will throttle the power, but in theory reduce the chance of overheating. In practice you may find that setting the impedance to 8 Ohm gives enough headroom to avoid cut-outs. I think I can only set the NR-3030 impedance to 4 or 6 ohms. I was a bit surprised when I first saw this.
Quark Posted September 13, 2023 Posted September 13, 2023 1 hour ago, BRS said: I think I can only set the NR-3030 impedance to 4 or 6 ohms. I was a bit surprised when I first saw this. OK, that's uncommon, but...
Neo Posted September 13, 2023 Posted September 13, 2023 (edited) Never mind 2 hours ago, BRS said: Edited September 13, 2023 by Neo 1
Neo Posted September 13, 2023 Posted September 13, 2023 (edited) never mind Edited September 13, 2023 by Neo 1
BRS Posted September 13, 2023 Author Posted September 13, 2023 15 minutes ago, Quark said: OK, that's uncommon, but... Same.
BRS Posted September 13, 2023 Author Posted September 13, 2023 . It may be a coincidence but this has only happened since changing impedance to 6ohms and setting all crossovers to 80khz. I will experiment and report back 1
Neo Posted September 13, 2023 Posted September 13, 2023 (edited) never mind Edited September 13, 2023 by Neo 1
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