呢個spec 寫得幾亂下,所以有問題問好正常
睇返description, "The output power is just a shade lower at 0.9W into a 32Ω load. "所以個output power 係0.9W @32 ohm.
佢個"Output Impedance"既寫法同一般理解唔同。
一般而言Output Impedance係講部amp phone out 既內阻,用黎計damping factor. e.g. 如果部amp output impedance 係0.1 ohm, 你個headphone 係25 ohm, damping factor = 25/0.1 = 250
Damping factor > 1就唔會有問題,一般想要好d就>10
Damping factor < 1就會有distortion.
Auris Euterpe個spec 講既Output Impedance係指Euterpe 既impedance selector 功能,佢冇講個phone out 既impedance, 而係講你個headphone 幾多ohm 就set high 定low
根據返個description,
With the majority of planar headphones, they tend to rate less than 80 Ohm and are more impedance agnostic than dynamic headphones. You need to have that switch set to low or L.
基本上80 ohm 以內就set low, 150或以上就set high.現實中好少headphone 係80.1-149.9 ohm(我未見過),有的話應該都係用low
至於佢下面個表寫
Low 32-80 Ohm / High > 150 Ohm
, 即係講headphone 幾多ohm 就set high定low,唔係講個phone out 既 output impedance.
如果你用25ohm headphone 應該都係set low, 你話壞機就唔會既,最多可能係damping factor 細d,最差就細過1會有distortion 咁