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Old 20th September 2006, 06:06 PM   #1
ingemar is offline ingemar  Sweden
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Default How to upgrade a Pioneer Pd 95

Hi there folks!
Somebody who knows the best way to upgrade this player.
Im using it as a driveunit feeding a dynamic presicion"DPDac 8.0".
Somebody with any idees??
Regards/Ingemar
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Old 21st September 2006, 05:48 AM   #2
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Here is the report that I did on the Pioneer PD77 similar, do use the Tent power supply as well as it was even better after I instaled that also down the track.

Tent Labs XO3 Clock Impessions


Cheers George
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Old 30th November 2006, 01:53 AM   #3
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Hi Ingemar, in answer to your pm to me I have done work on the PD77 which I believe is similar if not the same as the PD75, your PD95 may be similar, so here goes, the Tentlabs XO3 using the XOsupply and the improved spidf output from the XO3 does wonders for the Pioneer as a transport,
If using as a player the XO2 will suffice with a XOsupply

The output can be improved by replacing the NE5532's with AD825's on dual Browndog convertor boards, remember the NE5532 is a dual opamp and the AD825 is a single smd, you have to use Browndog boards.
On the PD77 circuit you can see it's output is a dual fet driven by half of the NE5532 and it is driven from the other half I/V NE5532.

The output coupling cap C573 and C572 if the dc offset is now low (0v-10mv) because of the AD825's, you may short out as well to give direct coupled output.

Cheers George
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Old 30th November 2006, 07:08 AM   #4
Ruach is offline Ruach  Singapore
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Georgehifi is the right person that you should talk to.

A good clock, upgrade of the opamps to opa627 (which I preferred over the AD825) and the change of the couple output caps near the RCA output should be standard mods for your PD95.

Other basic mods includes biasing the opamps to run in Class A mode, change of caps etc...

There are a ton of mods that you can do on the PD95 but take it one step at a time.

Have fun
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Old 30th November 2006, 05:10 PM   #5
ingemar is offline ingemar  Sweden
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Default Pd 95

Thank you George and Ruach .I have now changed the opamps in the analog output from jrc 2114 to opa 2604.What a huge differense it made,bas,treble everything is so much better.Have another question for you guys,where do i put my tent xo3 with supply,in the dac or in my drive?Have a Danish 1tech monsterdac that already has a Lc audio xo3 inside?
Kindly/Ingemar
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Old 30th November 2006, 07:01 PM   #6
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Default Re: Pd 95

Quote:
Originally posted by ingemar
Thank you George and Ruach .I have now changed the opamps in the analog output from jrc 2114 to opa 2604.What a huge differense it made,bas,treble everything is so much better.Have another question for you guys,where do i put my tent xo3 with supply,in the dac or in my drive?Have a Danish 1tech monsterdac that already has a Lc audio xo3 inside?
Kindly/Ingemar
In the transport, and then it will sing!

Cheers George
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Old 30th November 2006, 09:32 PM   #7
ingemar is offline ingemar  Sweden
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Default Pd95

Hi again.
I think i need some guidanse according mounting the xo3 clock,where do i connect the new spdif in/out so i can get the benefits of that?I want to bypass the old one so i dont need to make a new output.The same for the clock where do i connect it and what do i need to remove?
Kindly/Ingemar
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Old 30th November 2006, 09:49 PM   #8
ingemar is offline ingemar  Sweden
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Default pd 95

Sorry its me again.
Forgot to ask you where i can find this as you calling it (browndog) and the AD 825Regards/Ingemar
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Old 30th November 2006, 10:03 PM   #9
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Default Re: pd 95

Quote:
Originally posted by ingemar
Sorry its me again.
Forgot to ask you where i can find this as you calling it (browndog) and the AD 825Regards/Ingemar
I noticed some here on ebay quite cheap i usually pay 40-50 complete. remember you will need two of these, one dual for each channel


http://cgi.ebay.com.au/ws/eBayISAPI....2110&rd=1&rd=1


Cheers George
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Old 1st December 2006, 01:27 PM   #10
ingemar is offline ingemar  Sweden
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Default Pd95

Hi.
Now i know what parts i need to remove,but were do i find ic 512?And were do i connect for the new spdif`?
Kindly/Ingemar
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