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Old 17th March 2003, 11:45 PM   #21
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Default My coloured view...

Quote:
Have you looked into what the big sonic difference is on the old lasers v.s. CDM12.x ?
Hi Arne, I am a firm believer in the quality of single beam lasers mounted on swingarms ( that even accept 4 mm gaps on disks and play CDRW's as a bonus ! ). That's all I know and it is based on sonical properties and the error correcting capabilities.

The mechanics make this these transports so good. The fact that most are built in players with multibit TDA1541A helps
The electronics that accompany them are old too and newer chipsets should be better. We're talking about 1985 electronics here ! Recently I had the strange plan to sell my collection of CDM 1/4 based players and to start with something else for a change but comparing the oldies with newer Sony transports made me quickly change my plans.

I don't know if they can be controlled by newer chipsets or vice versa, I never looked into that because in my very coloured opinion the CDM 12.xx is inferior to any swingarm based transport Philips made. To me they smell and I don't want them. They have a shorter life and reliablity is lower than the CDM 1/4.xx. CDM 12.xx came in to the world because they were cheaper to manufacture, it had nothing to do with quality. Same goes for the decision to quit glass lenses for lasers: cost.

Sometimes I wonder if they are better than VRDS. Did a short test once with my old modded Marantz CD 65-II and a VRDS 10. Both had low jitter clocks. The Marantz sounded better. It's comparing pears with apples, I know but I liked it.

However, the risk of continuing with these old transports is of being looked up at as a but nevertheless I'll stick with them. Most modern transports and players are heavy compromises between price and quality. At the time CDM 1/4 players were made production costs ( but also profit ) were higher and longevity was one of the demands seen in the context of the high price.

Conclusion: Philips had a very high standard when you look at the CDM series that are still very popular despite being obsolete for several years. TDA1541A has begun it's second youth...
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Old 17th March 2003, 11:51 PM   #22
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Default Thanx

just what I needed to hear...

(My SteinMusic CD-Drive kit just came up for sale!)

Arne K
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Old 18th March 2003, 12:02 AM   #23
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Arne, it's only an opinion. Maybe there are others that feel completely different about this and love CDM 12.xx. Although it's hard to imagine...
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Old 18th March 2003, 12:08 AM   #24
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Default I have had my last (?) "fight" with CDM 12.x

Having been thrugh some Philips-players, several Marantz, including CD-14, Sonic Frontiers, several MicroMega Stage / Drive...
-my fondness for the Sony lasers have grown.
(Denon DCD-1500 + Nakamichi CD-4).

Maybe I should investigate players with old Philips lasers...(have been overlooked).

Arne K
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Old 18th March 2003, 12:14 AM   #25
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That is exacty the problem Arne, old lasers. When you find an old player be sure to do the CDR test. Spare lasers are hard to find for some types.

Sony lasers can be very good but there are some that are even worse than CDM 12.xx ( KSS240A for example ). I have a Sony too that is quite OK.
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Old 26th July 2003, 06:08 AM   #26
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Hi Jean,

I would like to have the DAC and I/V stage part circuit of CD80, would you mind to send me the copy of this part by e-mail?

Thanks for help!

Best Regards,
Hatasa
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Old 26th July 2003, 04:51 PM   #27
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Default Did someone mention CD-80s while I was out........

I have manuals, and lots of hours on these.

And for those of you who might be new:

I hate non-o/s. I use 24-bit, and 8X stuff, and no stinking op-amps.

Jocko, Il Duce du CD-80
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Old 26th July 2003, 05:04 PM   #28
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Hi,

Would you mind to share the part from the I/V stage to output filter for me? Thanks! I need the copy!

Best Regards,
Hatasa
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Old 26th July 2003, 06:32 PM   #29
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Default BTW...

Have anyone heard / seen the Philips LLH-series?

ArneK
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Old 26th July 2003, 07:34 PM   #30
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Default BTW.............

Yes, and yes.

Sounds like crap, especially for the money involved.


Don't know if I can scan that section in one pass or not................

Jocko
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