Finally, an affordable CD Transport: the Shigaclone story - Page 93 - diyAudio
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Old 11th May 2008, 09:02 PM   #921
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Default Re: Re: shigaclone

Quote:
Originally posted by kevinkr

Johnm:
I think my RCEZ32 based clone significantly outperforms my media server in some ways. It seems generally a touch more refined - nothing earth shattering as the server is quite good, and the differences aren't immediately apparent in casual listening. I think one particular area where the clone really seems to stand out is in the frequency extremes, the bottom octaves are extremely well defined, controlled and convincing, and in the very top octaves this is some of the cleanest "undigital" sound I have heard from cd.

Kevin, what might you be using as your media server? Anything special about its setup? I have the ez31 in shipment and look forward to comparing it to the Linux server I have setup based on SoundCheck's WIKI mod's
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Old 11th May 2008, 09:13 PM   #922
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Quote:
Originally posted by Ed LaFontaine


The o-rings are used as tensioners. An o-ring is hooked onto a point of attachment on the plinth and then stretched gently to another point on the sub-base. This tension compresses the springs slightly. Each additional o-ring increases the compression of the springs. The compression of the springs is balanced against the tension in the o-rings along with the weight of the plinth.
I think I'll start with 2 o-rings on all 4 sides of the plinth, 1 on each side of a corner, 8 o-rings.
Hi

That´s what came up in mind when I was putting some sketchtes on paper this morning . Belive it. Useing wooden plinth and sub-base you can hook the o-rings with brass hook screws. I estimated four spring, three o-rings around each, 120 dgr apart, YMMV.

I just didn´t realise this could substitute a heavy metal plinth, but came close

http://www.allproducts.com/metal/uca...cup_hooks.html

I can laminate 1/4" aircraft grade plywood left of RC airmodeler time. Primitive but cheap.

Thanks for clarification
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Old 11th May 2008, 09:33 PM   #923
quan is offline quan  Australia
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Unhappy shigaclone

Thanks Craig/Kevin-
It looks like i fried the transport board then-Have to look for the boombox to start again
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Old 12th May 2008, 02:17 PM   #924
kevinkr is offline kevinkr  United States
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Quote:
Originally posted by hayenc
Having applied too high voltage to the transport myself, I might offer a small glimmer of hope. Kevin is right in that if the voltage was applied backwards, there might not be hope. But I applied about 14 volts and the 10 v electrolyitc went, and the supply itself went (or was already bad), but the rest of the transport survived. The motor driver chip is rated about 14 volts with internal regulator. The rest of the chips on the 32 have regulators in front of them. Now those transistors may be fried, but the chips themselves may have survived.

Since you have a 31 and the service manual has been posted, it would be worth checking against the regulation in the schematic before tossing the transport to see if only the regulation was damaged.

But I do agree with Kevin. First step is to ensure you have a properly functioning power supply indepedent of the transport. I was able to fit short power wires into the holes that used to hold the inductor, but checked way too many times to ensure I did not hook them up backwards.

Good luck in your trials.

Craig
Hi hayenc,
Actually there is only one main voltage regulator which is part of the motor controller IC and it supplies 5V via an external pass transistor to everything on the board, any other lower voltages present are derived from this supply.

Hi Quan,
That is unfortunate.. Better luck next time..
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Old 12th May 2008, 07:08 PM   #925
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I made some listening test today.

As I had no XLR cable to attach SPDIF to the Studer D730, I compared the audio out from the D730 to the Shigaclone connected to a modified Super Pro (CS8416 and CS4398).

The D730 is based an a CDM4 drive, SAA7350 bitstream connected to TDA1547.

I cannot say, what is better. There is a difference, but it seems to be a matter of taste.

The Studer is a little bit better balanced, very comfortable sound.

The Shigaclone with the 24 Bit DAC shows some more details in the music, maybe a little bit better differentation in the soundstage.

Next weekend, I will compare SPDIF out of the Studer with the Shigaclone over the same DAC.

Franz
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Old 14th May 2008, 12:21 AM   #926
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Quick Question. I purchased the clock Peter is using. It is a two pin device and it is replacing one with three pins. How do you hook the two pin unit up?Tanks
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Old 14th May 2008, 12:33 AM   #927
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Connect into two outer pads, center pad is not used.
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Old 14th May 2008, 03:33 AM   #928
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Default Re: Re: Re: shigaclone

Quote:
Originally posted by bluemartini



Kevin, what might you be using as your media server? Anything special about its setup? I have the ez31 in shipment and look forward to comparing it to the Linux server I have setup based on SoundCheck's WIKI mod's

Here is the thread detailing what I went through to get this thing to work. Built expressly from scratch for serving music and video. The addition of another drive has made it a bit noisier than I would like, but it is acceptably quiet at any listening volume I employ. I have also upgraded to 1GB of ram - other than that and the latest version of J River media player it is as described towards the end of the thread.

Here is the thread:
Digital Audio Music Server

Were I to do it again I would not use a mobo with integrated audio or video, although the video performance is more than ok, the onboard chipset was not bit perfect. (Hardware resampled everything to 48K) The M-Audio Audiophile 2496 sound car I selected cured the bit perfect issues and is a good performer and reasonably priced.

Today I might select Linux over winXP Pro, but various issues at the time made windoz a more logical choice I thought - these days I am less convinced that is the case, however I am not sure how good driver support is for some of the higher performance sound cards. At the time my Audiophile 2496 was not supported by any distribution I was familiar with, and there were some issues with the quality of the alsa mixer and package as well. (There is another mixer preferred for quality critical audio applications, but of course I cannot remember the name at this moment.)

It performs similarly to the shigaclone, but in some areas the shigaclone surpasses it very slightly in terms of sound quality. I think the clone manages slightly more open and extended highs, and slightly more detail, along with somewhat better bass definition. The clone is still a moving target and I expect it to improve with further tweaks and as I move closer to completing the case work and mass loading.
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Old 14th May 2008, 07:48 AM   #929
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Unhappy parts

Does anyone have one of the ribbon cables that go to the display that the would be willing to sell me or give me. I would pay postage of course.

There has to be someone out there with a unit that they bricked that would be willing to part with one.

Mine was damaged in shipping.

Thanks!

-claiborne
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Old 14th May 2008, 02:01 PM   #930
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Claiborne, I sent you an email.

Thanks...

SB
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