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Old 29th June 2007, 05:06 AM   #1441
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Hi
While I have a couple of 1002s
and 5502s I have only modified the
output on one 1002 with a 3.3mf bipolar
bypassed with polystyrenes. One of the 5502 unit
outputs go via a pair of Altronics transformers
600/600ohm and I do like the sound. Trannies are AUD$19 ea
and I plan to put them inside when time permits.
Maybe combine this with Mike F's 1002 output mods
sometime soon with gold contacts on the 5502s.

For me the most effective improvement has been spikey feet!
I use self tapping metal screws and then cover the tops with
felt.The unit then sits on a cork tile and under the
cork tile is a heavy Jarrah wood offcut. Under the offcut
is dimpled foam and under that another Jarrah offcut.
The sound has become more articulate and airflow improves.
I enclose some pictures and URls for Altronics Trannies.

Harza I like your reversable mod approach and maybe use
Polypropelene caps & good resistors optionally followed by
transformers in a small box on the way to your Preamp or amp.
This all using bits of the AV multicord. Perhaps later
putting in gold RCAs and blocking the AV out off all together.

Regards

AnthonyPT

http://www.altronics.com.au/index.asp?area=prod&grp=355

http://www.altronics.com.au/index.as...=item&id=C9555
Inline hum and Noise autocoupler (might try too! ! !

http://www.altronics.com.au/index.as...=item&id=M0709
(could be good if shielded?)
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File Type: jpg feetsaga2.jpg (32.4 KB, 1195 views)
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Old 29th June 2007, 11:18 AM   #1442
Mick_F is offline Mick_F  Germany
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I have been writing this many times in this thread - properly damped placement of the PS1 makes a huge difference.

Read this.



Mick
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Old 29th June 2007, 07:03 PM   #1443
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Hi

Just did some more spikey feet for a friend tonight on another1002.
He has been using just dimpled foam only which
was fair but the Jarrah and other isolation
with the cork will made it much more articulate
and clean up the bass as well. I would be a bit
judicial with white grease and Mike F while I find
your tyre elegant with the cutting board those grub
screws are banned in OZ for some safety reason or
thats what a plumber told me! So Metal self tappers
with Phillips heads do well and lock down nicely.
Hot glue on top of the heads will be tried. Anyone else tried
the cheaper line tranformers? Would like to hear the
Sowter trannies such as the 9055/9762/8347.Then
it all gets a bit pricey! Have we covered balanced line
outputs for the humble 1002/5502s? My main 1002 goes to a
tube preamp with Trimax ex-ABC transformers: it sounds so good!

regards

AnthonyPT
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Old 30th June 2007, 01:57 AM   #1444
jduffy is offline jduffy  United States
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I pulled off the felt feet and put some hard rubber feet I use for all my audio projects. Very nice! Bass sounds tighter.

Simple fix with great results.
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Old 2nd July 2007, 04:38 AM   #1445
rhing is offline rhing  United States
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Instead of tampering with the original feet, I placed two Isonode feet under the front and one under the back for isolation and solid footing. This gave positive results. My five year old son can jump on the hardwood floors to his delight and he cannot cause the Playstation 1 to skip one bit. Additionally, the sound is better defined.

I really enjoy this thread as I have recently joined the ranks of Playstation 1 audiophiles. I would like to add a 15A IEC inlet to replace the stock polarized IEC 2-pole C-8 inlet, so I can use a better power cord without having to use an add-on C-14/C-7 AC power adapter. Has anyone tried this? Or can anyone recommend the connections, especially to ground? Any help here is greatly appreciated. Photos would be awesome! I would imagine that others would want to do the same, if it's possible.
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Old 2nd July 2007, 02:41 PM   #1446
Mick_F is offline Mick_F  Germany
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Changing the power cord will not change the sonic performance of the PS1. It makes no sense to change the inlet in this respect.
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Old 3rd July 2007, 05:13 PM   #1447
JLPAS is offline JLPAS  France
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Quote:
Originally posted by jduffy
I pulled off the felt feet and put some hard rubber feet I use for all my audio projects. Very nice! Bass sounds tighter.

Simple fix with great results.

I secured the PSI with some kind of Blu-Tack on a 40 mm thick MDF piece and I make it work without the cover .
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Old 3rd July 2007, 07:40 PM   #1448
Hatti is offline Hatti  Germany
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Hi,

I also listen to a PS1 and I have an other cheap CDP for the CDŽs that doesnŽt work on the PS1!

Sounds also great; better than the most CDP you can buy!

More information youŽll find on my page:
http://freenet-homepage.de/stratihat...1e196564c.html

nice time, Hatti
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Old 6th July 2007, 08:18 PM   #1449
rhing is offline rhing  United States
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I have been listening to a PS1 Model SCPH-5501 for some time using the A/V Multi-Out port and an upgraded Sony AV cable (Model No. SCPH-10500, gold plated connectors, OFC wire) with my Melody SP3 MkII vacuum tube integrated amp. I have to say the sound is very impressive from the stock unit. Reading this forum thread, Mick's Web site and www.playfidelity.com, my curiosity about Model SCPH-1001 had been piqued. So I went to a used video game store in the area and picked up Model SCPH-1001 for $25USD. So far, I have only connected it to my Naim Nait 1 solid state integrated amplifier using a Chord Cable RCA-to-DIN interconnect cable, and the sound I am hearing is more impressive than Model SCPH-5501 with the Sony A/V cable. I also have a PS Audio XStream Power Punch IEC C-7 power cord on order. I know some here feel that aftermarket power cords are unnecessary, but I use them with my other equipment because I do hear a subtle improvement between stock and aftermarket cords, especially shielded power cords with digital sources. I am not sure if the difference is due to the different PS1 models and their connectors, the better interconnect cable with the Nait amplifier, or a combination of factors. I will be performing some more listening tests with my tube and solid state integrated amps and some cables. I also plan to make a DIY interconnect cable using a Sony A/V Multi-Out connector and quality RCA connectors, and I will document this in photos. Any recommendations on interconnect cable and connectors is greatly appreciated.

In reading this thread, everyone agrees that modifying the PS1's output improves the sound, but in what way? Does frequency extension, imaging, soundstage, detail and PRaT (pace, rhythm and timing) improve? I know some of these attributes are very subjective, but some further explanation of "sounds better" would be helpful to me to decide whether I want to make the mods or not. For now, I can live with the stock units. The sound is highly musical and sounds more like an analog source than a digital source.
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Old 8th July 2007, 12:11 PM   #1450
JLPAS is offline JLPAS  France
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And what about this for replacing the outpout stage :
http://www.bursonaudio.com/Burson_HDAM_Module.htm
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