Amplifier Bitrate One AD00026 Battery-powered bypass capacitor, the root of the power supply and power amplifier, and an OS capacitor added to the power amplifier side. 200V → 100V down transformer vibration adjustment RAMSA WZ-DM35 Decidal multiprocessor EQ re-correction Contact restoration Gekiochi-kun sound-absorbing material Equipment Speaker holding rod Terminal block 10 full shock-absorbing pads added on the top of the speaker Acetate tape pasted around iPhone external microphone iQ7 ZOOM 90