47 Laboratory PiTracer CD transport Unit with one Power Humpty $28.000

[tiefbassuebertr]

The ultimatest compact disc turntable ever made?
Who have heard this model in combination with a top class DAC ?

here some URLs:
New Products - PiTracer CD Transport
Stereophile: 47 Laboratory 4704 PiTracer CD transport
SoundStage! Equipment Review - 47 Laboratory Model 4704 PiTracer CD Transport (5/2004)
47 Laboratories Factory Tour [English]

[toufu]

What makes this a better solution than a PC with USB output to a USB ready DAC or a USB to digital convertor?

[tiefbassuebertr]

Originally Posted by toufu

What makes this a better solution than a PC with USB output to a USB ready DAC or a USB to digital convertor?

... that is the question.

[woodturner-fran]

Who'll be the first to try a clone?

PiClone anyone?

Fran

[audio-kraut]

What an ugly piece of gear.
Looks like somebody had a brainfart and couldn't wait to design it properly.

It's also why the PiTracer costs $25.000 USD -- it's a radical design that prohibits mass production.

Even if you think that PiTracer is the CD transport that Rube Goldberg would build, it's hard not to respect the originality of its design.

http://www.soundstage.com/revequip/47lab_pitracer.htm

Originality yes - in asking 25 grand. For a cd reader.

[kevinkr]

Originally Posted by woodturner-fran

Who'll be the first to try a clone?

PiClone anyone?

Fran

Hi Fran,
I suspect underneath it all we would probably find it is not too different than the Shigaclone we know and like so well.. (Same mechanism and chipset in all likelihood.)

[tiefbassuebertr]

Originally Posted by kevinkr

Hi Fran,
I suspect underneath it all we would probably find it is not too different than the Shigaclone we know and like so well.. (Same mechanism and chipset in all likelihood.)

In view of the price class I would have assumed more, that the
JVC EXU-901A Transport mechanism was inside:
JVC "EXU-901a" (KRELL KPS-25sc Phase Tech CT-1 CT1) better than VAM1254, CDpro2LF ?
But obviously it isn't, instead of this the mechanism from JVC Boom-Box RC-EZ31A (Sanyo "SF-P 101N").

In case of CD player clones from 47 Lab I have found some URLs, that I have just found but still not explicit study:
http://www.audiostereo.pl/forum_wpis...at=36475&p=1#k
http://www.audiostereo.pl/forum_wpis...emat=36475&p=5
(at whole 75 pages)
RC-EZ31 manual
(Service Manual JVC RC-EZ31A - Sanyo "SF-P 101N" mechanism for 47lab clones - really inside by 47lab ??)
CD Transport DIY
Google Nachricht
Finally, an affordable CD Transport: the Shigaclone story
Finally, an affordable CD Transport: the Shigaclone story
µÒÁËÒÇÔ·ÂØ¡ÃÐà»ëÒËÔéÇ JVC RC-EZ31
(at whole more than 400 pages)
Ô*×°JVC RC£*Ez 31 CD¡¢¿¨´ø ¡¢ÊÕÒô×éºÏÊÖÌá»ú_ºãÍþÒôÏìµçÆ÷ÌìµØ_°Ù¶ÈÓа¡
ÔÆÍâÌìÂÛ̳ - ¡ºµç×Ó¹ÜÇ°Ö÷ŴóÆ÷¡» - Ö÷Ìâ:47-labsshigaclone
Google Nachricht

Anywhere in one of this mentioned forums was claim, that the most used SF-P101N mechanism could be much more better than the CD-Pro2 (VAM1254) from daisylaser.
Concerning the laser Unit (optical pickup) type Sanyo "SF-P 101N" this could be realy true. But concerning the cheap brushed motor instead a hall motor this is hard to believe.
I would be shocked, when for PiTracer would be a such an ordinary brushed motor from Mabuchi in use.

[tiefbassuebertr]

about
Untitled
I read follow:

"The spindle motor to rotate the disc is a coreless 9 pole motor. This motor has a small inertia and very efficient which is most suitable for CD transport that has to change the speed from 500 to 200 rotations in about a minute and also has to repeat stop and go in a micro scale.
This motor is directly attached to the baseboard that weighs almost 10kgm. By the way, the platter weighs about 90grm with a CD on, so the ratio of the mass of the rotating part and the baseboard is over 100 times which, I suppose, would be sufficient."

[tiefbassuebertr]

Which laser head is in use?

Originally Posted by woodturner-fran

Who'll be the first to try a clone?
PiClone anyone?
Fran

Any news about that?

[ide2003]

sorry tiefbass, just can not find the 'warm' gear as Junji said

regards
TeguhPS