Rockport Technologies announces new owner

spiritofmusic

Well-Known Member
Jun 13, 2013
9,074
1,078
113
E. England
#61
Mik, purely from visuals, Japanese artisanship and it's sheer rareity in Europe, I'm absolutely intrigued by the Spec.

From it's labour intensive/labour of love laminated Finnish Birch ply plinth, to it's 16" diameter oversized Gunmetal platter, to it's generously specced motor using string drive, and I believe magnetic bearing, it looks like a fantastic proposition.

Can you say any more about it?
 
May 4, 2013
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#63
someone who really knows motors and what can be sourced now would have to comment. i have no clue. it seems not reasonable to assume that somehow great motors can no longer be built as well as they once could. but maybe not. a lost art?[/QUOTE]

The subject of motors is a complex matter as the differences are vast the way they are contolled is subject in its self, majority of units are just standard of the shelf maxon motors there are now some rather large and interesting designs coming from china. Units like the large manger unit you had in the system 11 were way ahead of its time and would be tottaly uneconomical today also very hard to control due to its sheer size. The system 111 motor from what I know it costs today would be tottally out of the question. As far as belt drives go I always tend to like large AC motors but are a thing of scarcity and not so easy to control. They just seem to flow in a way that is tottaly effortless.
 
May 30, 2010
15,508
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Portugal
#64
.
(...) Does the AF0 and AS2000 run their NOS modded motors because they're the best, or because a ground-up new design would truly be prohibitive?
Why should they invest in a new ground-up design if they could locate some motors that matched their specifications?

A turntable project is a very complex entity and many factors are interdependent - I have no doubt that some aspects of the bearing design are connected to the motor characteristics.
 
Likes: 108CY
May 4, 2013
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#65
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Why should they invest in a new ground-up design if they could locate some motors that matched their specifications?

A turntable project is a very complex entity and many factors are interdependent - I have no doubt that some aspects of the bearing design are connected to the motor characteristics.
I agree it would not be worth for such a small market, i have played around with modifying shafts etc and its rather complex and opens its own can of worms where does one start and one would have to throw an aweful lot of money into just prototyping.


The problem is there is limited choices out there
 

spiritofmusic

Well-Known Member
Jun 13, 2013
9,074
1,078
113
E. England
#66
Oh, I have no opinion either way. It's Mik's contention that one reason a new Sirius will not appear is the inability to source or develop a motor as good or superior to that on the III.

Yet the AF0 and AS2000 are using the old motor (albeit heavilly modded).
 
May 30, 2010
15,508
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Portugal
#67
(...) As far as belt drives go I always tend to like large AC motors but are a thing of scarcity and not so easy to control. They just seem to flow in a way that is tottaly effortless.
There are hundreds of such great motors floating around in european tape recorders stored in garages. Most probably it is how the famous turntables manufacturers got their stock ... :)
 
Likes: 108CY
May 4, 2013
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#68
There are hundreds of such great motors floating around in european tape recorders stored in garages. Most probably it is how the famous turntables manufacturers got their stock ... :)
True sadly not many are as adventurous to use some of the large AC tape recorder motors some of them are stunning but usually take alot to drive properly. I like some of those motors they sound totally effortless.
 

bonzo75

Member Sponsor
Feb 26, 2014
11,906
1,601
113
London
#70
To correct the record, the Fremer review you cite is from 2007 and is about the Monaco version 1, not the 1.5.
Thanks for correcting
 

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