`~å~êó=
Realistic yet Natural Sounding DAC
Mhdt Laboratory
Taipei, Taiwan
http://www.mhdtlab.com/
Rev 1.0 Jun, 2016
5
7 Main Powercord Inlet – Check the preset voltage indicated below this slot,
this can be either 220-240VAC or 100-120 VAC (50/60Hz).
The 4 digital inputs, i.e., 3,4,5,6 are independent to each other, only one
among them will be active and is controlled by the tact switches located in front
panel.
2.3 Powering up
Before applying power to the
`~å~êó
DAC, ensure that the correct mains
voltage is used. This can be either 220-240VAC or 100-120 VAC (50/60Hz).
The factory preset voltage is indicated on the rear panel.
After applying mains voltage, a blue led will light up in one of the tact switch on
the front panel.
The filaments of vacuum tube located in the right side of the DAC will also slowly
lighting up, it is visible through the transparent acrylic front panel. A slightly
click sound of relay can be heard in about 10-15 seconds after power on and it
represents that the DAC is in stand-by mode.
3. Technical specifications
Digital Receiver CS8416 x 1
D/A converter TDA1545A x 4 (can be 1 ~ 4)
I/V stage: discrete transistors no OP-AMP no feedback
Frequency response: 20 Hz to 18 kHz (± 2dB)
Output impedance: 32 ohms
Output level: 3.0 Vrms
USB input 16, 24 bits 44.1 kHz or 48 kHz, 88.2kHz, 96kHz, 176.4kHz and 192
kHz; drivers required
