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Marantz CD6006 CD Player - Review/Measurements

Robciak

Member
Joined
Nov 1, 2022
Messages
5
Likes
17
Hi,

Here is my review of the Marantz CD6006 CD player. This series has been replaced by the CD6007 (which costs about $600).

It is a standard CD player with analog, digital and telephone outputs.
tempImageHMYGYv.png
tempImageevqgVF.png



The manufacturer claims a dynamic range of 100 dB, which should meet the requirements for a standard CD resolution of 16 bits.

Zrzut ekranu 2024-02-17 o 13.54.33.png

Measured Files

Since there is no inputs, I used Wav files burned on CD. As file I used 1 kHz sine and sweep (20Hz-20kHz) both with 16 bits resolution and 44,1 kHz sampling rate. The audio files were dithered which slightly lowered the resolution. Below is a reference measurement performed on an APx525.


SINAD 16B.jpg
ENOB 16B.jpg


Quick comparison
Let's start with a quick comparison of all outputs.
Analog 16B.jpg
Optical 16B.jpg
Phones 16B.jpg


Measurements
Unfortunately, the CD6006 offers resolution of less than 15 bits, which is not enough for a CD. Even the digital output does not meet the requirements.

RMS level
Analog out slightly over 2 V, what accordance with typical RCA output.
Phones output: drives most headphones.
RMS Level 16B.jpg
Level 16B D.jpg

THD+N %

THD+N% 16B.jpg
THD+N% 16B.jpg
THD+N% 16B.jpg

SINAD
SINAD 16B.jpg
SINAD 16B.jpg
SINAD 16B.jpg

ENOB
All outputs have a lower resolution than the CD standard.

ENOB 16B.jpg
ENOB 16B.jpg
ENOB 16B.jpg

Dynamic range
Dynamic range lower than declared by the manufacturer.

DR 16B.jpg
DR 16B.jpg
DR 16B.jpg

Intermodulation distortion


SMPTE 16B.jpg
SMPTE 16B.jpg
SMPTE 16B.jpg

Frequency respons
Here are two measures of frequency response. The first is based on RMS level in the frequency domain and the second is a level relative to 1 kHz.

Analog
Unrelevant differences between channels around 0,01V. The Flatness of the frequency respons does not exceed 0,03 dB in the highest range.
Freq resp .jpg
Freq relativ .jpg

Optical
Flat frequency response.
Freq resp 16B.jpg
Freq relativ 16B.jpg

Phones:
Small differences between channel, around 0,04 V, with a 0,7 V drop at 20 kHz. Linearity drops to 0,2 dB at 20 khz (sorry for the bad framing of the graph).
Freq resp 16B.jpg
Freq relativ 16B.jpg
 

Lopsided

Member
Forum Donor
Joined
Jul 11, 2021
Messages
62
Likes
55
Thank you for your high quality measurements!
The distortion profile seems to indicate Windows messed with the burning process; see this post.
@amirm it would be great if you can promote it to the homepage.
 
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