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Old 15th April 2004, 06:19 AM   #11
Raka is offline Raka  Europe
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Thanks for the advices

Peter, my main concern about the rega is the outside wire, as I think it's no good for the suspension, like you say. I'll try to find some "highend" wire, but here is not so easy. Btw, how do you spell Slohmo Mintz?

Sreten, you mean that rewiring and not including a separate ground wire is not a "complete" good idea, don't you?
Thanks for the hints about the wires. How's your 250 doing?
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Old 15th April 2004, 07:10 AM   #12
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Quote:
outside wire, as I think it's no good for the suspension
To be honest i never thought about that. In Linn's 'philosophy' the much less flexible Ittok wire is threated as part of the suspension, which i think is bollocks. The suspension will likely work better and be easier to set with thin wire.

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Btw, how do you spell Slohmo Mintz?
Now you have me
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Old 15th April 2004, 07:32 AM   #13
peterr is offline peterr  Netherlands
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Quote:
Btw, how do you spell Slohmo Mintz?
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Old 15th April 2004, 08:16 AM   #14
sreten is offline sreten  United Kingdom
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Quote:
Originally posted by analog_sa


To be honest i never thought about that. In Linn's 'philosophy' the much less flexible Ittok wire is threated as part of the suspension, which i think is bollocks. The suspension will likely work better and be easier to set with thin wire.

Now you have me
Indeed I do .

If the tone arm cable is not ultra flexible the best thing
to do with it is treat it as part of the suspension system.

The general principle is to damp the rotation mode of the
subchassis and arm around the pivot point of the platter.

This means the thick lead should be dressed to lead off
from the tonearm at ~ 90 degrees to the line between
the bearing and the tone arm and clipped in place.

I always put a twist in a thick lead so you don't have
a straight section "short" of the suspension, and the
position of the cable in the clip needs to be adjusted
so it is neither "pushing" or "pulling" the suspension.


Quote:
Raka : Sreten, you mean that rewiring and not including a separate ground wire is not a "complete" good idea, don't you?
IMO and experience a seperate ground wire is needed for best
noise levels, lowering noise improves "transparency" even if
with no ground wire noise levels seem to be acceptable.

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Old 15th April 2004, 09:22 AM   #15
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Quote:
IMO and experience a seperate ground wire is needed
Interesting. Have you observed this in non-balanced configuration as well?
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Old 15th April 2004, 09:39 AM   #16
sreten is offline sreten  United Kingdom
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Quote:
Originally posted by analog_sa
Interesting. Have you observed this in non-balanced configuration as well?
Yes, only in unbalanced, as I've never come across balanced inputs.

For what I regard as acceptable noise (hum and hash), which is
basically similar to the input hum and noise of my Audiolab 8000A,
I had to remove the internal earth link of the RB250 and connect
the arm base to the earthing of the turntable, all earthed via a
wire to my amp.

A seperate wire seems to be good enough, though if rewiring
I'd use 4 core overall screen with the screen as the ground wire.

I recommended the 4 core individually screened above because
I think the sheathing of each wire is a little thinner in this case.

IMO the Rega grounding is flawed and easily improved,
I'd be surprised if I couldn't make any turntable fitted with
the standard Rega arrangement have obviously lower noise.

sreten.
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Old 26th April 2004, 04:27 PM   #17
krishu is offline krishu  Europe
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Hello,

really astonishing is thin solid copper wire as sold by some manufacturers. It is about $2/mile and sounds gorgeous. About the same league as cardas.

Use laquered 0.1mm solid copper wire, which is dedicated for winding transformers and coils. Wire from cart to phono plugs, use a satellite cable for shilding of the external part.

Some stories at my website about rega modding: www.krishu.de > hifi > turntable > rega

Cheers
Christian.
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Old 27th April 2004, 11:27 AM   #18
Raka is offline Raka  Europe
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Quote:
Originally posted by krishu
Hello,

really astonishing is thin solid copper wire as sold by some manufacturers. It is about $2/mile and sounds gorgeous. About the same league as cardas.

Use laquered 0.1mm solid copper wire, which is dedicated for winding transformers and coils. Wire from cart to phono plugs, use a satellite cable for shilding of the external part.

Some stories at my website about rega modding: www.krishu.de > hifi > turntable > rega

Cheers
Christian.

Thanks for sharing this!!
I can get some of this wire, for coils and so on, so I think I will try this. What do you mean with satellite cable?
What would be the optimal earth arrangment for a RB250?
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Old 27th April 2004, 11:48 AM   #19
krishu is offline krishu  Europe
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Hello,

I mean you put this solid copper wire in, the external part of it you shield by using a prepared satellite cable: use one with a thick solid wire, pull this out and put the four small tonearm wires in, in case you use RCA phono plugs you might a pair of sattelite cable shielding.

In my opinion the best way of shielding is: connect the shielding of the satellite cables to the ground wire coming out of the arm (connected to the pipe) and connect a separate ground wire there, too. This wire can be connected to pre am ground separately. Sorry for my confusing English ... I should make a sketch to explain ...

Cheers
Christian.
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Old 27th April 2004, 01:34 PM   #20
Raka is offline Raka  Europe
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Quote:
Originally posted by krishu
Hello,

I mean you put this solid copper wire in, the external part of it you shield by using a prepared satellite cable: use one with a thick solid wire, pull this out and put the four small tonearm wires in, in case you use RCA phono plugs you might a pair of sattelite cable shielding.

In my opinion the best way of shielding is: connect the shielding of the satellite cables to the ground wire coming out of the arm (connected to the pipe) and connect a separate ground wire there, too. This wire can be connected to pre am ground separately. Sorry for my confusing English ... I should make a sketch to explain ...

Cheers
Christian.
Thanks for the explanation
It's fun you mentioned this satellite cable, is the method I sometimes use to shield wiring
I've found 0.17mm diameter wire, it's very thin and flexible!!
This evening I'll try to get more information about the grounding in your web.
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