Hi folks
After having the transports fail in three players in the last year, I decided no more, I'm going to build my own CDP with a CD-ROM drive that I can simply replace if it fails.
I've got a suitable chassis and IDE CD-ROM, I've bought an IDE CD controller board and have a good idea of how I'm going to put it together; however, there are still some decisions I need help with.
1. Power supply, how bad are SMPS? I have a small one from a 1U server that has the requisite 5 and 12v outputs that seems suitable, but would this compromise the performance of the transport and it would be better to use a transformer with linear regulated supply and cap bank?
2. How to get the SPDIF output of the CD-ROM to talk to an external DAC. I read that the 3 pin SDIF connector on the back of the CDRM unit puts out SPDIF at TTL level - 5v, whereas normal SPDIF works at 0.5v, so some circuitry is required to transform the 5v SPDIF? Then what else is needed to implement either a coaxial or TOSlink output to interface to a DAC?
3. I'm sure I'm forgetting something else...
After having the transports fail in three players in the last year, I decided no more, I'm going to build my own CDP with a CD-ROM drive that I can simply replace if it fails.
I've got a suitable chassis and IDE CD-ROM, I've bought an IDE CD controller board and have a good idea of how I'm going to put it together; however, there are still some decisions I need help with.
1. Power supply, how bad are SMPS? I have a small one from a 1U server that has the requisite 5 and 12v outputs that seems suitable, but would this compromise the performance of the transport and it would be better to use a transformer with linear regulated supply and cap bank?
2. How to get the SPDIF output of the CD-ROM to talk to an external DAC. I read that the 3 pin SDIF connector on the back of the CDRM unit puts out SPDIF at TTL level - 5v, whereas normal SPDIF works at 0.5v, so some circuitry is required to transform the 5v SPDIF? Then what else is needed to implement either a coaxial or TOSlink output to interface to a DAC?
3. I'm sure I'm forgetting something else...
Last edited:
Hi Ian,
This will not fail and sound much better than a CD-ROM.
vicol audio : Shigaclone mkII CD transport
You may follow entire story here Finally, an affordable CD Transport: the Shigaclone story
Regards,
Tibi
This will not fail and sound much better than a CD-ROM.
vicol audio : Shigaclone mkII CD transport
You may follow entire story here Finally, an affordable CD Transport: the Shigaclone story
Regards,
Tibi
- Status
- Not open for further replies.