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Lampizating on Burr Brown PCM53 JP-V DAC?
Lampizating on Burr Brown PCM53 JP-V DAC?
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Old 22nd February 2014, 09:34 AM   #1
TBL is offline TBL  Hong Kong
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Join Date: Feb 2012
Default Lampizating on Burr Brown PCM53 JP-V DAC?

I am having several old school CD players that use this DAC, a stereo one, like in Hitachi DAD-1000, Realistic CD-1000, and Denon DCD-1000.

I wish to turn them into tube outputs, eliminating the four OpAmps of NE5532 on, for instance the Realistic CD-1000.

Has someone done lampizator on this chip? Mr. Lukazs Fikus at www.lampizator.eu has no information on this specific DAC but I think the Hitachi setup on the Realistic CD-1000 has some great potential.

Any idea is appreciated.

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Old 23rd February 2014, 08:04 AM   #2
erin is offline erin  Australia
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PCM53 is a great sounding chip. Good luck with your project
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Old 3rd December 2016, 02:11 PM   #3
sova is offline sova  Russian Federation
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Lampizating on Burr Brown PCM53 JP-V DAC?
This DAC PCM 53 JG-V has V-out only, with OP AMP inside.
It is impossible omit there OP AMP so far.
I think, tube cathode follower implementation is possible.
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Old 3rd December 2016, 03:14 PM   #4
gabdx is offline gabdx  Canada
diyAudio Member
Join Date: Jan 2008
Yes, if you go for tubes you don't need any gain.

Go always cathode follower for DAC, never install a gain stage unless you use a lot of feedback.

I learned that building 2 lampizator designs and removing both.

I built single tube cathode followers and parallel cathode followers for dacs as well as a head phone output through monster capacitors film cap of 200uf for Senheiser HD600

The conclusion is that a good output stage is is the most crucial aspect of good digital music.

The TDA1541 is maybe the best dac but obsolete today.

Please use a good differential discrete transistor output feed with a regulated power supply, it is in all aspects superior to a tube cathode follower.
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Old 3rd December 2016, 03:28 PM   #5
korpberget is offline korpberget  Norway
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Join Date: Mar 2016
Location: Lillehammer
Cambridge Audio Azur 640C ALmpizator

You can find a link to cathode follower a bit down this page. It's for voltage output dac.
I used it on a Cambridge like that and it sounds great! I also have another stock Cambridge for comparing. It sounds like a cheap heap of plastic next to the lampized one.
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