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Old 22nd April 2008, 10:39 PM   #571
quan is offline quan  Australia
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Question shigaclone

Hi Peter, for some reason the programming can't be used from the remote after the mod. Is there any reason for this?
Also , just in case the laser wear out as i got y EZ31 used, what SFP101 version is it?-there are a few different versions- 5/8pin, 15/16 ,with IC etc. Thanks Quan.
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Old 22nd April 2008, 10:46 PM   #572
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Default Re: shigaclone

Quote:
Originally posted by quan
Hi Peter, for some reason the programming can't be used from the remote after the mod. Is there any reason for this?
Also , just in case the laser wear out as i got y EZ31 used, what SFP101 version is it?-there are a few different versions- 5/8pin, 15/16 ,with IC etc. Thanks Quan.
None of the mods I suggested should affect programming feature, it always worked well with my unit.

As to the version of SFP101, count the connections on ribbon cable to the laser pickup (it's either 15 or 16)
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Old 23rd April 2008, 04:28 AM   #573
kevinkr is offline kevinkr  United States
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Default RCEZ32 Update

Here is a list of components I have changed out that seem to improve the overall performance.

C927 > 10uF/16V standard BG
C940 > 10uF/16 standard BG

C958 > 47uF/16V standard BG, remove smd cap underneath. (This one is killer.)

Remove common mode choke.

C950 1000uF retain (in RCEZ31 the equivalent cap is removed) - This is the filter cap right after the common mode choke, removing it does not seem to result in any improvement, and I thought it sounded a bit dead and lifeless once removed.

I prefer the Citizen crystal to the ZTT, but YMMV.

Oddly at the moment I have a marked preference for cheap Radio Shack 92 and 330 ohm 5% 1/2W carbon film resistors for spdif output. I have tried several combinations of holco and the cheap RS really seem to work well.

I have Caddock MK-132 in several value combinations on the way and additional BG. I am going to change out one part at a time and listen.

I added a 3 pin connector to one of the mechanisms for spdif out and use a salvaged cable to bring it out. The other one goes direct from the chip.

I am now using the newer mechanism with all the above updates because the hub is actually a bit flatter. QC on these cheap mechanisms is ok, but not great.

To be fair I think my shigaClone "clone" is now performing almost as well as the Sony as a cd transport. It doesn't sound exactly the same, but that is ok.
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Old 23rd April 2008, 11:41 AM   #574
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Peter,

Did the Levinson lose the 'Transport Shootout' to the Shigaraki?

No. 37 For Sale

Regards,
Dan
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Old 23rd April 2008, 01:42 PM   #575
Gopher is offline Gopher  United Kingdom
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Does anyone have any ideas WHY this el cheapo boombox transport should apparently outperform massively engineered super transports?

I'm sure they just built it to a price with absolutely no consideration given to it's audiophile qualities?

Pure luck?
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Old 23rd April 2008, 01:44 PM   #576
DaveM is offline DaveM  United States
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simplicity? As with many things audiophile, sometimes the simpler the better. Remember that the mods make a big difference as well. I don't really know, nor do I care. I just want one
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Old 23rd April 2008, 01:53 PM   #577
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Quote:
Originally posted by dantwomey
Did the Levinson lose the 'Transport Shootout' to the Shigaraki?

No. 37 For Sale
Not only the ML37 lost the battle, but my other two main transports as well (ML31.5 and CEC TL0). Presently they sit idly on a shelf waiting for "better days". And since together they worth some $10,000 on used market presently, I will be putting them for sale soon as well
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Old 23rd April 2008, 02:08 PM   #578
OneyedK is offline OneyedK  Belgium
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Quote:
Originally posted by Gopher
massively engineered super transports
I don't think it outperforms massively engineered super transports,
but it will outperform massively marketed "super transports".
Very often, you pay for design and the fact that those transports are built in low quantities.
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Old 23rd April 2008, 02:37 PM   #579
kevinkr is offline kevinkr  United States
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Quote:
Originally posted by Gopher
Does anyone have any ideas WHY this el cheapo boombox transport should apparently outperform massively engineered super transports?

I'm sure they just built it to a price with absolutely no consideration given to it's audiophile qualities?

Pure luck?
I'm not convinced necessarily that it does, (can speak only about the version based on the RCEZ32) but it certainly comes very close. 47Labs claims it is the simplicity of the processing chain, and the mechanism design that results in this level of performance. I suspect it is just a good design on silicon and a competent board design. The mechanism is chintzy, but apparently there is some crucial aspect to its performance that was not compromised by the low cost. In oem quantities I doubt the board and mechanism combined was over $2, the total electronics package probably in the range of $5 or so for either model.

I am still in the process of tweaking mine. Interestingly my two mechanism/board sets with the same components installed (literally swapped from one to the other) do not sound exactly the same. Both sound good though, and one has a lot more hours than the other - there does appear to be some component burn in (I'm assuming electrolytic caps and the motors primarily) before it really starts to bloom. Mine always sounds better after an hour or so of continuous operation, although it sounds fine cold.

It is extraordinarily sensitive to the quality of the passive components used in certain key locations which I am still identifying.

I'm quite surprised, while still being a bit suspicious - it can't possibly sound this good can it? As a consequence I get hyper critical and need to listen to the Sony for a while to get my feet back on the ground, and then I can accept for a while at least that it sounds quite good, if not quite yet digital nirvana. I have the suspicion with more work that it might get quite close..

Incidentally I removed the plastic shroud on the mechanism, and wouldn't you know that it appeared to cause an audible improvement, disturbing because I really like the protection it affords the laser pick up, the noise reduction it provides, and the tidier appearance. Go figure...

None of this really makes sense, but it is FUN! (When I am not breaking something.)
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Old 23rd April 2008, 02:38 PM   #580
johnm is offline johnm  United Kingdom
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Just installed the resistors in the digital output - 291 ohms for the series resistor (selected 10k and 300ohm metal film resistors in parallel to get 291 ohms) and 100 ohms generic carbon film for the shunt.

Already the sound seems a tad more assured - bass a little firmer. And I can rest easy knowing I'm not over-stressing the output now

Edit: Kevin my transport also improved when I removed the plastic cover - less there to vibrate I guess?
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