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Old 15th August 2006, 03:41 PM   #1101
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I think I should add some kind of resistors or caps at the output of mine : when it'S connected to my hk670 receiver, it sounds 3x worse than my Pioneer SACD/DVD-A player.
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Old 15th August 2006, 06:31 PM   #1102
johnm is offline johnm  United Kingdom
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Thought I'd report back on my modded Playstation (SCPH-1002). I've been doing ALOT of critical listening between it and my cherished Naim CDI, and I have to say that overall the cheap Playstation beats it, though it's VERY close. It's Black Gate 'N' caps have had a chance to break in now, and I am still startled at the sound I am getting from this games machine!

I've just read what I've typed again and it does seem hard to believe and I'm sure any Naim fans would think me mad (or at the very least cloth-eared) but for me the Sony has the edge in clarity and a firmer more tactile bass! It just sounds like real music - I get that hard to describe impression/assurance that what is on the disc is what is being relayed through the speakers. I never doubt anything or have any niggles about the sound. It just flows beautifully. The Naim by comparison has a more euphonic presentation and isn't as tight.

I still don't know why this thing sounds so good (I'd love to!) and have to keep comparing with my Naim CDI and Shanling CD-T80 (with upgraded NOS valves and OPA2134 op-amps), but everytime I realise I'm not imagining it - this thing really is a music making marvel!

I don't want to get rid of my Naim as I have a soft spot for it and love its looks & build, but in my main system the Playstation takes the top spot and is my machine of choice for critical listening.

Cheers,

- John
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Old 16th August 2006, 07:21 AM   #1103
Ziggy is offline Ziggy  Australia
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Hey John!......have to agree with you on all points of PSX performance. The moment a CD starts in the thing you know there is a ''rightness'' about it - hard to describe, but music does indeed sound lifelike and solid, especially piano (the hardest instrument to reproduce correctly) which sounds eerily accurate.
I guess it's just one of those audio freaks that come around once in a blue moon?
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Old 16th August 2006, 08:00 AM   #1104
Mick_F is offline Mick_F  Germany
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John, I am very glad to hear how much you like the PS1. Your comparison to the CDI corresponds well to the results of my listening tests. I have so far only heard one player that was better than the PS1, the advantage CD1. But thats a very expensive player and the difference was not that large. Also, that listening test was made with a completely unmodified PS1

Maybe you can improve even further if you replace the BG N caps by good polypropylene caps. For that you have to cut off a part of the upper metal cover in order to get some room for the caps (they are usually quite large). I think it should be worth the effort as good film caps always sound better than even the best electrolytics.


Mick
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Old 16th August 2006, 09:33 AM   #1105
johnm is offline johnm  United Kingdom
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Hi Ziggy / Mick!

To be honest I am so happy with the sound now I am loath to change anything at all! The only other mod. I want to try is to remove the power supply as you detail on your site Mick - a german website recommends this as well. Might go for an over the top PSU ala Naim and see if this makes a difference, though perhaps it is the switched mode PSU that is partly responsible for the PS1's performance.... Still with a DIN connector for the PS1 I can use different power supplies and exeriment :-)

I was thinking of building a new brushed aluminium case CNC machined for it, but it then occured to me perhaps the case itself is also - in part - responsible for the sound quality. It's non magnetic for a start - something DNM believe in strongly with all their amplifier designs. It's also lightweight which means energy is not stored to the same extent as a heavier metal design. I also get a perverse kick out of people saying "a PLAYSTATION?!?!" when they come over now - haha!

I'd be curious to see what the measured performance is like... perhaps it's some kind of distortion we happen to like or something liek that? I remember Hi-Fi World here in the UK ran a review of a PS One based German CD player with a valve output. The frequency response favoured the midband, and there was quite a bit of distortion evident. Must try and dig that article out. Hopefully the PS SCPH-1002 measures better... it certainly SOUNDS accurate.

Anyone know if you can still order spare transports, the earlier ones with the metal bits as opposed to plastic?

Cheers!

- John
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Old 16th August 2006, 09:45 AM   #1106
Mick_F is offline Mick_F  Germany
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Quote:
Originally posted by johnm
I also get a perverse kick out of people saying "a PLAYSTATION?!?!" when they come over now - haha!

Mee too!

New laser modules can, at least in Germany, easily be found on ebay. They are ususally for later models such as 7*** and 9*** or PSX, but as far as I remember you can modify all of them to fit the SCPH100* simply by exchanging the plastic top cover of the laser unit.

For all the items offered on ebay, it is however unclear to me if these lasers are original parts made by Sony....

Mick
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Old 16th August 2006, 10:10 AM   #1107
johnm is offline johnm  United Kingdom
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Think I'll just buy a couple more SCPH-1002s here in the UK on ebay for spares. Wonder how long the lasers are specced for... probably quite a while being as they were designed for games machines and they come in for quite some abuse.

Actually I also have a SCPH-9002 and - via the AV output it didn't sound too bad at all - certainly not as bad as some have made out, but the 1002 definately has the best sound to my ears. Still nice to know I can use the laser from the 9002 (which is just about brand new as I hardly used it) in the 1002 with the plastic cover replaced.

Cheers Mick!
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Old 16th August 2006, 11:32 AM   #1108
johnm is offline johnm  United Kingdom
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Mick, do you happen to know if the power supply from a 9002 can be fitted to a 1002? It would lessen the heat problem until I can get an external PSU sorted out.

The connectors on both mother boards are the same size, but the connector on the 1002 PSU is larger (with 7 pins) than the connector on the 9002 PSU board (5 pins). I assume two pins are unused.

Do you know if the pin out on the 9002 PSU will match the pin in on the 1002 mother board or should I leave well alone?

Cheers,

- John

** Just had a much closer look at both boards and it looks as if it isn't possible - oh well!!! **
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Old 16th August 2006, 11:56 AM   #1109
Mick_F is offline Mick_F  Germany
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John, I dont know and never tried.

I think the best is to measure the voltages.....

Mick
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Old 16th August 2006, 12:11 PM   #1110
phn is offline phn  Sweden
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John, I would rather get a new CDM. It was the early model that was bad, the later ones are improved.

The CD clamp usually goes before the laser. I got a magnetic clamp from a broken CD ROM drive. It takes some serious medification. The spindle on the PSX CDM is 2 mm and not 3. The magnetic clamp is cool if you want a top-loaded PSX type 47 Labs.
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