Toy 7 3-way speaker

High pass filter

Mid band pass filter



Low pass filter



Front View

Front view
Scan D2905/9900+Vifa D75mx-41-08+Sacn 25W8565-01 10''

Freqquency 2k~30k/500~2k/19~500 hz 89dB

Toy1 My first time Audio DIY ... D/A Box.

PCI D/A Card



Hand Make D/A Box
Main PCB is design for Video streaming I just take 19V adpater connect to  +/-12 V ,+5V,+3.3V switching supply power to D/A.
Sub PCB is PCI Audio Card I just take SPDIF signal connect to receiver CS8416 then transfer to PCM feed WM8740 then decode Audio L/R .

消失已久的皇家咖啡

消失的皇家咖啡, 咖啡是日式咖啡底, 咖啡杯上橫跨放糖匙 ,且附上一鐘白蘭地,
嚐時白蘭地澆在糖匙上, 點上火 , 此時可見淡淡藍色火光, 時間又不自覺的回到記憶中的過往........