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Old 12th October 2006, 06:36 PM   #11
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Old 12th October 2006, 09:30 PM   #12
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cd7 doesn't use cdm4......
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Old 9th December 2006, 02:00 AM   #13
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What is one of these CD7's worth.......if you could find one?
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Old 9th December 2006, 08:54 AM   #14
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3000 us dollars....
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Old 9th December 2006, 12:41 PM   #15
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And how good does it sound?
Is it vastly superior to other TDA1541 machines?
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Old 9th December 2006, 02:10 PM   #16
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yes it is - but it still needs a new clock.....
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Old 18th December 2006, 08:12 AM   #17
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What's the big secret about the CD7? How are the dacs feeded, differential? And I/V, Marantz like with Hdam's? If so it can be done diy too

And have been reading someone could get better sound by feeding the CD-7 dac with Spdif from an external CDM-1 based player!

Here is a piece of text from Marantz Europe:

Q: Linear Music Filter:
A: In the past, lack of finesse in filtering a signal's spurious images and unwanted noise compromised even technologically advanced multi-bit DACs by introducing 'ringing' distortions. Without sophisticated filtering even the Double Crown would be humbled. For the CD-7 Marantz has stepped right into the digital domain. By using Digital Signal Processing Marantz has developed a brand new filter which acts with extreme subtlety and precision before the data stream is converted from digital to analogue. Dubbed the Linear Music Filter (LMF), the new digital design delivers extraordinarily accurate reproduction by responding to instructions encoded within the MZ777f DSP chipset. It can compensate for the characteristics of analogue filters to ensure a flat frequency response and zero phase distortion in the audio band, while its 4x oversampling shifts spurious images and noise far outside our range of hearing. It's a far advanced manifestation of the standard 'FIR' digital filter used in many of todays less exalted applications. It remains true that the original FIR's audio characteristics are preferred by music lovers. However on the downside, it introduces 'pre-' and 'after ringing' distortion when it fails to respond with sufficient precision to amplitude impulses. Its variant, the more precise-acting 'Short FIR', shows less attenuation above 20kHz whilst retaining the same sonic character. For the LMF however, Marantz created a filter preserving that sonic character, but whose impulse response (behaviour in time) is so precise as to significantly cut down after-and especially pre-ringing distortions, so that reproduced music retains all the attack and dynamism of a live performance. In tandem with this, a gentle-acting 3rd order bessel analogue filter in the CD-7 offers optimum impulse response and lowest phase distortion after D/A conversion.
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Old 18th December 2006, 11:37 AM   #18
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Quote:
Originally posted by tubee

Here is a piece of text from Marantz Europe:

It does say that the SAA7220 is bad and the DSP is better.
Unfortunately the TDA1541A does not ike so much to play non os.
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Old 18th December 2006, 03:33 PM   #19
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Quote:
Unfortunately the TDA1541A does not ike so much to play non os.
Bernard, this is still going through my mind the last time, your nonos-encouters with pcm dacs. I still have to try two PCM56's you send me, but rightnow busy with a subwoofer. PCM63 would be ultimate then?
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Old 21st December 2006, 08:51 AM   #20
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Default Marantz CD7 service manual

Hi All,

I'd like to get a service manual for my CD7...

Could anyone helps me?
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