CD-Player with upscaling (from 16bit to 20bit or 24bit) - diyAudio
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Old 18th January 2011, 06:07 PM   #1
210 is offline 210  Germany
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Default CD-Player with upscaling (from 16bit to 20bit or 24bit)

What CD-Players do you know that uses an upscaling technology
to feed their 20bit or 24bit DACs ?

I've got a Kenwood DPF3030 CDP (uses 24bit d.r.i.v.e II),
which sounds nice "out of the box" and quite detailed after modding
(mainly by using MKS, Tantal, FC and Myca capacitors).

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Old 18th January 2011, 09:24 PM   #2
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HK HD990 with "RLS III".

Also, all the Denon DVD players that have AL24 Processing (eg. DVD2930). That includes that Denon DCD710AE that you are asking on the other thread.

Last edited by SoNic_real_one; 18th January 2011 at 09:32 PM.
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Old 19th January 2011, 05:41 AM   #3
rabbitz is offline rabbitz  Australia
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Cambridge 840C that up samples to 24bit/384kHz. Been very happy with it's performance and no desire to mod.

Cambridgeaudio Azur 840C
No longer DIY active
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Old 19th January 2011, 09:43 AM   #4
210 is offline 210  Germany
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Thanks for your info, SoNic_real_one and rabbitz!

So, besides D.R.I.V.E. and Al24
are RLS III and ATF two more technologies
that not just use the rounding errors of
32bit-SRCs to feed 24bit DACs.

Another similarity is that
the DPF3030 uses an AD1855-DAC and
the HD990 and the 840C uses AD1955 DACs.
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Old 19th January 2011, 02:27 PM   #5
210 is offline 210  Germany
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Remarks to the HK HD990:

Seems to me that not RLS III does the refinement of digital data, but
"a 24-bit resolution enhancer minimizing noise levels and intermodulation distortion (IMD)",
like it's described on the amazon link/site for the HD990.

Another thing is the switching power supply of the HD990
(it's the board on the left of the inside photo).
I guess it would be good to mod it with a steel case.

Click the image to open in full size.
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