CD-PRO2M Kit I want one, but which?

[Kip]

I was very close to buying a CD-PRO2M kit on another site, but I did some research here and found many things being done with these transports. I am not an electrical engineer, but a very good tech. I can assemble anything that is already figured out. What I am asking is I need it all figured out. The reason I won't buy the kit I found is two fold. 1. I asked if the I2S could output the LSBRJ (Japanese) format and never got an answer. 2. They stated they were comming out with a DAC kit and I asked if it was 1x oversampling. Their responce was no and that all DACs do oversampling. Well I decided not to buy their CD-PRO2M kit so I am asking here where should I get the most up to date parts and software and what format can the I2S out be configured as?

[mls]

The I2S format can't be "configured" per se. It is a raw stream which some DAC chips can receive directly without a receiver chip (i.e. CS 8412). So if you're building a CD player using the I2S stream from the CD-Pro, you'll have to build (or modify) a DAC utilizing a DAC chip which can receive I2S directly. Some of the non-oversampling DACs can handle I2S, if this is the direction that you want to go.

So, if you want a "kit" and don't want to have to engineer the display and control software and electronics, the best source is likely Daisy. You'll still have to build a DIY power supply as they don't have one available as a kit. Otherwise, you're other choice is the DIY supplier (Ken) via Taiwan, and this kit is complete with case, power supply, etc., and at the price is a better value, but you'll have to do some modification to grab the I2S data to feed to your DAC (either outboard, or built within the same case).

[Kip]

This is the direction I want to go, I am using a Proceed CDD transport and an Audio note DAC.1.x. I would like to build the most up to date CD-PRO2M diy kit and incorporate a 1x oversampling DAC and spend less then $1200.00. The Ack dAck looks very interesting and got good reviews. The AN DAC1.1x uses the AD1865N and Ack dAck uses the TDA1545A , but the TDA1545A doesn't input I2S info. I have also found here that allot of people like the TDA1541 and it does take the I2S as well as the TDA1543. So I am interested in building a CD-PRO2M cd player with no receiver chip in 1x oversampling and use the I2S format. There is also a thread here that is discussing a computer cdrom drive as a transport with a controller. This could be a more cost effective cd player and I am open to this too. I am using a Karan KAi180 integrated amp and Merlin VSM-M speakers and the Karan is fully balanced. A set of balanced outputs from the cd player would be nice. It is not a problem bulding this diy project the engineering is the problem for me. I don't write code or design circuits, but can assemble and solder very well. I am open to any suggestions/design ideas.

[Calimero]

I own a Proceed CCD transport and haven’t yet made up my mind regarding a better transport. Potential choices are:
- CD-PRO2(M) kit; on audiocircle there is a thread about a kit based on the that drive (http://www.audiocircle.com/circles/v...er=asc&start=0). Unfortunately I can’t view the http://www.diyzone.net link, my Explorer 5.5 here crashes.
- Buy an seond hand player with a CDM2 or 4 unit in it (some experts here claim those units are better than the PRO2(M).

The best is that I choose both alternatives and find out about that claim myself, however time and funds are restricted.


Until now I made some general mods to the Proceed transport (which is based on a decent transport, namely the CDM12-PRO). They are:
1. added a Tent clock and its separate power supply from Guido Tent
2. replaced the reg (7805) that feeds the digital output circuit, for a LM1085
3. replaced the 2 rectifier bridges by fast recovery diodes

Pace, details and tonal structure has improved tremendously by these mods. I would advice you to try at least mod 1. As it can be re-used for the PRO2-ket you are planning.

Henk

[Kip]

Thank you Calimero for the info. I may end up doing those modes to my CDD, but you also mentioned players using the CDM2 and CDM4 mechanisims. I did a search earlier to find other players that had a I2S out and found no info. Can you please post some reasonable priced units that use these or others that may be used to output I2S to a TDA1541?

[ZERS]

Originally posted by Calimero
Unfortunately I can’t view the http://www.diyzone.net link, my Explorer 5.5 here crashes.

I don't speak japanese neither chinese.

English link ?

[Calimero]

Hi Kip,
a lot of information has been posted here on which brands/models use which CDM mechanisms. Jean-Paul is one of the experts on this form regarding this topic.
You could do a search (I always use google instead of this forum's lousy search) on for instance 'Philips Marantz diy CDM'

Here are 2 links that can be intesting for the purpose of determining which second hand player to buy in case you are looking for a CDM4 or 9. When considering such player you should be aware that lasers for the oldest units (CDM1 and 2) are hard (impossible) to get.

http://www.dcaudio.kgb.pl/dac.htm

http://www.diyaudio.com/forums/showthread/t-19526.html

Regards Henk

[Calimero]

if it of course exists.
My azian's is not what it has been (in an previous life)

Henk

[dezzz]

What is the price of the kit that Ken provides? And is there a link to a site that explains about this specific kit? I have heard about it before but haven't been able to find any additional info about it! Hope you can help!

[Kip]

Here is the link for the kit dezzz, it also started this post.

http://cls.audiogon.com/cgi-bin/cls....lay&1109700754

I looked into this kit and they were not sure about the I2S or 0x oversampling dacs which is having me look elsewhere. Maybe I should look again?