KK Sir,
Progress:
Completed all soldering/testing PSU/drilling/mounting socket/wiring/measurement, only waiting your USB module to complete my DAC = (in-completed user).
Sound Testing result:
Very detail, sweet, great improvement (30%+) compared with my moded 640C using LM4562 OPA. Although the 1955 pro DAC only using default OPA $1/pc, if changed real OPA627BP, the performance will be ++++++??
Question:
1) in the SPDIF in circuit, there are 2 slot for 0.01uf cap, from the theory side, any difference by using "雲母" (default) and film cap?
2) the USB module which you are working on last time, the connection method seems quite dangerous, no mounting, wiring crossing around, easy to contact with the caps in the DAC PCB, suppose the course will provide some material to mount the USB board on the DAC board safely? need suggestion and solution to solve these problems.
3) The coming SRC module can fit in the case or need hanging outside the case?
Sugargar |
