03-Sep-2015, 21:44
Also, in terms of how hot they get. The phantoms themselves do not get particularly hot even when played loud for long periods. The dialog on the other hand gets worryingly hot to the touch.
The heatsink design on the phantom is adequate, the metal is anodised, the fins are too thick, there are not enough quantity of fins - all make for a not very efficient design at transferring heat to air, but that said the design seems adequate for what they put out under normal circumstances in my fairly small room anyway.
The heatsink design on the dialog though is a masterclass in how not to design a heatsink, again big thick fins, anodised, not many of them - but even worse due to the plastic casing with tiny holes at the bottom and tiny holes at the top, the amount of air that can actually reach the fins is minimal. The amount of heat the metal heatsink is able to wick away into the air is tiny and this is why the dialog gets SO hot even though it is only using 7watts most of the time. Dissapointing, and frankly unfixable unless they can magically make the unit use a constant 3 watts less.
The heatsink design on the phantom is adequate, the metal is anodised, the fins are too thick, there are not enough quantity of fins - all make for a not very efficient design at transferring heat to air, but that said the design seems adequate for what they put out under normal circumstances in my fairly small room anyway.
The heatsink design on the dialog though is a masterclass in how not to design a heatsink, again big thick fins, anodised, not many of them - but even worse due to the plastic casing with tiny holes at the bottom and tiny holes at the top, the amount of air that can actually reach the fins is minimal. The amount of heat the metal heatsink is able to wick away into the air is tiny and this is why the dialog gets SO hot even though it is only using 7watts most of the time. Dissapointing, and frankly unfixable unless they can magically make the unit use a constant 3 watts less.
