ZolaIII
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- Jul 28, 2019
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It's quite other way around. All stereo Yamahas I ever encountered had a good worked out passive cooling and good optimised PCB placement paired with good quality capacitors, even the cheep ones. Transformers are either iron core or toroidal and quite good quality and noise characteristics. Usually they don't get uncomfortably hot on tuch even driven relatively hard.Really badly designed/manufactured (amp). I would use fans as a last resort, with 12 V wall adapter. Otherwise get money back or another amp.
Thing is if you can lower down capacitor temperature for 20° they will last more than twice as long. And this is easy and cheap enough too do with active cooling still keeping the noise under residential level and avoiding pitch low fundamental which can be annoying. If you love your equipment you will do it. The from factory fans are far from great usually old durable double ball bearing producing grinding sound and not pressure optimised.