照咁講安全計都係用返佢自家嗰個AMP比較好?
冇錯
睇返PAM8406個description, 佢可以做到5W Output at 10% THD with a 2Ω Load and 5V Power Supply at Class-D Mode,其實都係去到推細喇叭單元個級數,用V=IR除一除可以去到2.5A,其實已經好大,即係呢粒chip 係可以輸出大電流。我估部amp 會係PAM8406之後再做d阻抗轉換,令個單元阻抗(以部amp角度睇)去返2Ω呢d水平,所以唔會有問題
https://www.diodes.com/part/view/PAM8406/
咁如果咁講我想用我嗰一台THX 888 會唔會有問題呢?
純粹係便攜式播放器理論上電流唔會咁大?
講唔實,都係有d賭運
重點係佢用d零件受到幾大電流
雖然話THX888好大power, 推平板呢類低阻野都頂得順,不過平板都冇鋁帶阻抗咁低,可能出事就係差個少少
如果真係要試,我估用返d寫明係用current mode 放大個d amp 穩陣d,處理大電流能力應該好d