Dear Thuchan, I was confused with the TAD drivers because they all looked to me as HF drivers but the result is even
estheticaly fantastic. I hope that the Bavarian Voice sound
as they look. BTW you must be slender as well as supple to
get 'around' all those beautys.
Regards, |
Dear Thuchan, I assume that everyone would love to build
his own 'dream speakers'. Anyway I would. My curiosity is
about the drivers. I know that A Capella uses some midd-dome for the range of +/-300- 50000 Hz. Then the Usher horn uses the TAD coaxial driver (version Pioneer) for midd/high in a three way system. If I understand you well
you are using the TAD coaxial beryllium driver(?). If so I am not able to understand the need for a 5 way system.
Ie even in the case of an extra midd/bass one should think that a 4 way will be adequate. You must have some specific reasons for your choice. Will you be so kind to explain?
Regards,n |
Dear Dertonarm, I am not sure if our ears are capable of
ignoring this 'noise' or our psychology? Anyway, avoiding Freud , such kind of of mechanism must have some Darwian fundation.
Regards, |
Dear Dertonarm, 'a divine voice' is tribute to your romantic nature but I meant with this Darwian capability
to 'ignore noise' some kind of explanation for the fact
that we are able to enjoy records .
Regards, |
There was a (Japanese?) review of 10(?) 'big guns' in
which EMT 927 got the first price.
Suprise somehow stimulate our memory. That is , I assume, why I rembember.
To compensate for such a 'poor' info I will add two
references:
www.janvanvliet.nl (the Dutch specialist for EMT );
Deutsche Perfektion ( Enjoy the music, March 2002).
Regards, |
In_shore, I know that I am entering some kind of an 'minefield' but the crafmanship needed to produce those
platters and bearings may be lost meanwhile so the question
is if the CNC lathes can compensate for this loss. I have
difficulty to believe that all of those admireres of Micro
5000, 8000, etc. are daydreamers.
Regards, |
In_shore, In some countrys you need to tell in advance that
you intend to tell a joke. Then depending on their upbringing (aka politeness) thy should laugh. I love jokes
so I am very sorry to have missed the point. But we agree
about those ''old TT's'' I think.
Regards, |
My Kuzma Stabi Ref. has 2 motors driving the sub-platter with an single belt. I check the speed with the Clearaudio
Stroboscopic record with the stylus on the record. I am not
able to see any speed variation. The platter is 8 kgr.
I have difficulty to grasp how, say, 2 gr. stylus pressure
can influence the inertia of the platter. The belt creep I
can emagine by the start of the TT but not as caused by the
stylus pressure when the platter is 'on speed'. Some data
about forces involved? |
My 'common sense'(aka 'not scientific') hyphothesis is:
how can a mouse (stylus) hinder an elephant (platter) in
his movement?
Regards, |
Dear Chris, I thought about the 'tank' instead of the elephant because I already anticipated such comment. But in literary sense this made no sense to me. But I was not able to find some military equivalent for the mouse.
This is the usual problem with methaphoric expressions because nobody can resist the chance to tease. However I deed mentioned that my speed check was with the stylus in the groove. I also asked for the data of the forces involved but this is somehow overlooked... |
Dear Lew, this is not my domain but if we can measure the forces involved (stylus in the groove) then we can design
a platter with such inertia wich should cure the problem.
My observation is that when the platter is on speed there is very litlle force needed to keep the platter in motion.
I also observed that many TT's have platters at around
10 kgr. Not exactly Dertonarms idea about the needed weight
but I somehow think that this is not accidental.
Regards, |
Dear Lew, There is obviously a 'weight threshold' between
us. While my platter is just a 'boy' this 'kid' is at least
twice as havy as both of your 'boys' put together. No wonder you thought about Kuzma Stabi Reference but was probable not able to resist the beauty of the slate plinth?
Regards, |
Travbrow, Wishful thinking is not an very strong argument in my opinion. I asked two times about measurements of the
'forces' ( aka 'stylus drag') involved but nobody provided any while everybody produced some 'theoretical quess'. Adding up of such conjectures is not of much help either. I
owned Garrards and DD TT's 30 years ago and know that they
can't match my Kuzma Stabi Reference. Then there is always
this proviso that 'IF' they are 'WELL DESIGNED' which however means 'REDISAGNED'. By such an 'argument' one can
always state that the TT in casu is not well redisigned.
This is called 'immunity' of an theory. Ie no way
one can refute such kind of 'arguments'.
Regards, |
Dear Dertonarm, 'the stylus drag is a [(if small in value)'
from 05-09-11] transformed into 'the best' which should be tamed somehow (05-12-11).
I thought the other way around:
from the cantilever 'perspective'. To my knowledge those
are usualy very thin aluminium tubes which are more often
destroyd by the cleaning proces then during the play proces. So 'the best' is obviously of much less danger for
the threatened object (cantilever). I first thought that one can use the stylus/ cantilever combo for all kinds of
other purposes: cleaning our nails or even plough the land. Ie if a cantilever can cope with all those 'drag forces' then...? So 'exaggeration' works both ways in my opinion: pro and contra.
Regards,
|
Travbrow, My Kuzma Stabi Ref. has electronic speed regulation which I never adjusted because there is no need to do that. If I use the Kuzma clamp or not this has no influence on the speed. To check the speed I use the Clearaudio stroboscopic test record with the stylus on the record. BTW I check with both my tonearms : the Reed 2A ,12'' with Phase Tech P-3G and Triplanar VII with Benz Ruby 3S. Both carts with 2gr. VTF. The Kuzma has inverted bearing, the platter is 8kgr. while the total weight is 40kgr.
Regards, |
About the 'drag' and other 'characteristic' of the stylus
cantilever combo. As a lawyer I am used to speak for those
who are not able to speak for themself. So here are two
statements in the name of the combo:
a. 'we are not sure about the platters above 30kgr. but anything below that weight is no much for us (our 'drag')'.
b. 'we are scared to death by those small cleaning brushes
and prefer the softness of the Magic Eraser. We are very
fragile and sensitive combo.'
Regards, |
Dear Logenn, The stylus&cantilever combo was obviously not
able to resist the temptation to 'show off'. Thy 'ásked' me
to correct the platter weight from 30kgr. to (about) 15 kgr. Ie we are informed that your TT has a platter of 16 kgr. So the only thing we can suggest to you is: throw away
those cleaning brushes if you still use them and use Magic
Eraser instead. Our possible death will hurt you more then us.
Regards in the name of... |
