What CD Player would you like to see tested?

[bramjacobse]

It is unobtainable, but I had a look at this one in the past, because it mentions 16x oversampling on the front and has only one SAA7220, and so there’s something wrong here
I met soon after the Sony 337ESD with the staggered conversion that you know very well, and so I moved on to something else after that. I don’t expect the TDA to become much less distorted or much more linear by multiplying them. Maybe the SNR can be improved but I think the staggered 8x oversampling of Sony had a better theoretical advantage.
It would be interesting to double check though.

2 months ago I had a quick look ;-)

Cambridge CD 3 - Bram Jacobse

Some measurements

www.bramjacobse.nl

 

[NTTY]

Cool, you measured it! And it looks familiar to what’s obtained from a single TDA (Revox B 226-S), or two (Sony CDP-337ESD). We recognize the same distortion pattern.
And I suppose no 16x oversampling in this Cambridge. At least I see the exact same attenuation (-60dB), and I’m not surprised with a single SAA7220. The Sony did better with true 8x oversampling.
Thanks for sharing!

 

[bramjacobse]

And I suppose no 16x oversampling in this Cambridge. A

4 Times oversampled by SAA7220 and then 3 TDA1541A's are delayed in time , 4 x 4 = 16 ;-)

Diagram found on Hifi-Engine

 

[NTTY]

Oh ok, that’s the reason for all these 74LS166N that I saw on your pictures. Nice.
So it’s kind of the idea of Sony (staggered conversion) except it’s not from 16x oversampling but delayed zero-hold between the DACs. This could explain the slightly higher distortion that you measured on the Multitone, but I’m not unsure it explains. Other than that, we are indeed looking at the TDA1541A typical performances.

 

[NTTY]

Review of the Onkyo C-7030 published

 

[Luca Sorrentino]

Uhm, more distortion in one channel, this will be very interesting to locate.
That "AUDIO" elecaps?
But no, there are no capacitors operating as a filter.
That muting bjts...

 

[NTTY]

Yep 5db more at -12dBFS. Negligible and not so unusual. Yeah it could be from the output stage, but I won't doing root cause analysis on that

 

[NTTY]

I received the SMSL PL150 yesterday, and I should find time to publish the review later today.

Spoiler

Spoiler alert: for those impatient to know about it, it’s basically a clone of the PL100.

 

[anonyless]

I received the SMSL PL150 yesterday, and I should find time to publish the review later today.

Spoiler

Spoiler alert: for those impatient to know about it, it’s basically a clone of the PL100.

did you manage to snag a black one? I waited weeks for one but it was never in stock

 

[NTTY]

No, I went for the grey one which I prefer.

 

[NTTY]

Review of the SMSL PL150 published. It took me a stupid number of hours to measure and review it, but I think our small community deserved it.
I must admit I was very impressed, considering the price. Well, I let you decide if you agree.

 

[anonyless]

Review of the SMSL PL150 published. It took me a stupid number of hours to measure and review it, but I think our small community deserved it.
I must admit I was very impressed, considering the price. Well, I let you decide if you agree.

great review, thanks. i feel like it was a great purchase

 

[Front Row]

Shanling CR60 Digital Transport CD​

​

 

[rdenney]

The CD players I own that are in working order are:

Marantz PMD331 (Philips VAM1202 drive and Burr-Brown PCM1701 DAC)
Naim CD5 (Philips VAM1205 drive and Philips TDA1305 DAC)
Tascam CD-401 (2 of these) (Sony KSS151a and a pair of Burr-Brown PCM54HP's)
Cambridge Audio Azur 640c (Sony KSS213 and Wolfson WM8740)
Cambridge Audio CXC (though the display is now too dim to read, transport only, Sanyo sf-p101n drive)

In the fixit pile are:
Cambridge Audio D500se (KSS213 drive and Cirrus Logic CS4391 DAC)
Magnavox CDB-650 (yes, that Magnavox, Philips CDM2 swing-arm drive and TDA1541 DAC)
Denon DCD1560 (KSS151a and a pair of Burr-Brown PCM1701's)

I have a Verany Test CD on the way, and will eventually download the test CD at the start of this thread. I can easily measure these using conventional old test equipment, primarily an HP8903b distortion analyzer, which should give me SINAD of the system, though CD's are right at the limits of that analyzer if they are working properly. And I can measure AC audio output voltage with good precision, which should provide a noise measurement with a digital zero track. I don't have an ADC I'd fully trust to redigitize the analog outputs of those players to test them with REW, but I'll probably try to set something up for that eventually.

But any of these that are easily available to borrow and test there in Switzerland would be interesting to me.

Rick "noting the downward slide of mechanisms and the upward climb of DAC chips in the decades represented in the collection" Denney

 

[Jcrow]

I’ve seen it mentioned a couple of times in this thread, but I’d also be really keen to see the Shanling cr-60 reviewed. Also the CA80 by Shanling.

 

[Silversurfermario]

New here. Creek Evolution 50 CD, could you tested it?
Bought it because in promo material stated, it has cd text option.
Reality, it canot display cd text, unfortunalty.
Im looking forward to read tests of cd player with cd text option and good display like T+A Music player.

 

[NTTY]

Not a CD player, but the below is coming, I just need to adapt to measuring that kind high performance device!

In my world of testing CD players this type of performance is from another galaxy since the THD+N is 10 times better than what I can get from the good old silver disk. Indeed, the THD+N is 20dB lower (ie 10 times lower, from 0.001% to 0.0001%) than a very good CD player.

I get the feeling of having the opportunity to go from 100 people in my living room, and me having a conversation with only one of them, everyone else having separate conversations of course, to only 10 people in the same living room. I sure get much less noise and distortion.

More to come tomorrow.

 

[Kr2d2]

Im looking forward to read tests of cd player with cd text option

The Tascam CD-200, tested here on ASR as a very good CDP and excellent transport by @NTTY (thanks again, Flo!), is displaying CD-text, if I remember correctly from my own one and as Tascam is writing here.

 

[Silversurfermario]

The Tascam CD-200, tested here on ASR as a very good CDP and excellent transport by @NTTY (thanks again, Flo!), is displaying CD-text, if I remember correctly from my own one and as Tascam is writing here.

Dont like the look of Tascsm. Im more for Teac 701

 

[NTTY]

The Yamaha CD-S303 is cd-text compatible too, as per the website of Yamaha, but I did not test that.