Marantz CD-63 measurements

[audio_tony]

Here are some measurements of a Marantz CD-63.

NOTE: The HDAM modules have been removed from this player, so it's no longer standard. No other modifications or upgrades have been carried out.

The PSU appears to be a little noise (50Hz spike) however I've not looked into this.

Also, I seem to have some issue with the multitones - even if I load the multitone wav file* directly into REW it still reports 2.8 bits so no idea what's going on there...

*I have tried generating this from the Multitone apps as well as creating my own with Sox - no difference.

For the crosstalk measurements I have only shown the silent channel - all input levels for the crosstalk measurements were -1dB.

**if anyone can tell me how to get rid of the cursors in REW I'd be grateful. I can't seem to find a way to do so....

My test setup: Asus Xonar STX sound card with a self built buffer / gain box in front of that. Host PC is an Intel i7 running Windows 10 with 32G RAM and SSD - no mechanical disks or CDROM drive present.
I also use an Altor Audio Olivine-2 ADC, however the Asus Xonar was used these measurements.
Sound card input was set to 24bit/96kHz
REW was configured as per the recommendations in the post from @NTTY

 

[restorer-john]

Great effort.

Although "dBFS" is not a reference that has any real meaning to absolute levels, output or residual. And frequency response, what is that- a white noise integration?

What is the output of the player in VRMS at 1kHz, 0dB?

 

[audio_tony]

Great effort.

Although "dBFS" is not a reference that has any real meaning to absolute levels, output or residual. And frequency response, what is that- a white noise integration?

What is the output of the player in VRMS at 1kHz, 0dB?

-0.1dbfs = 2.02 vRMS into my Asus sound card.

My measurement path is DUT -> buffer* box -> Asus sound card

*the buffer box has a gain adjustment but it's typically just buffering.

 

[restorer-john]

-0.1dbfs = 2.02 vRMS into my Asus sound card.

-0.1dBFS. Why?

There is no test for CD players since their introduction in 1982 that calls for a -0.1dB from full scale THD test. All its specs are with respect to full scale.

 

[audio_tony]

-0.1dBFS. Why?

When I generated the 0dB tone in sox, it warned that some samples were clipped, so I took the level back a bit.

It doesn't make any difference to the final measurement anyway.

 

[NTTY]

Also, I seem to have some issue with the multitones - even if I load the multitone wav file* directly into REW it still reports 2.8 bits so no idea what's going on there...

Because RTA assumes you're measuring from the last generator setup.
Open the generator and select Multitone 1/10 test. No need to launch it. RTA will adjust the dashboard to that specific test. Example:

 

[audio_tony]

Because RTA assumes you're measuring from the last generator setup.
Open the generator and select Multitone 1/10 test. No need to launch it. RTA will adjust the dashboard to that specific test. Example:

Thanks, I had no idea that different measurement modes were selected like that. I'll try that later.