Hi folks,
Here is a small update on my TT. I have not made much progress with the phono pre, still searching. However, I have now two important accessories: a dustcover for the TT and the centre weight, both made by Ali (magma) and shipped to me.
The original centre weight from Scheu weighs about 680 gms. It's made of Aluminium and then anodized. I was able to find some of the specifications of the weight from the net. Then knowing the density of Aluminium, and calibrating the pictures from the net by the known dimensions (like the bottom and top diameters and the height, available for example from coolgales.com), I had to work a bit hard one afternoon, to come up with the exact specifications which were then given to Ali. Ali has done a great job with the fabrication of the weight.
We decided to make one small change from the Scheu design for the weight. The Scheu weight has a small spirit level on top of the weight at the centre. Since I already have a very precise spirit level from Stanley, I did not want another spirit level on my weight, and instructed Ali accordingly. Because of this, I had to make small changes to the design so that the weight does not increase. Ultimately in its final form the weight is between 680 and 685 gms. The coolgales.com states it at 700 gms, although another source says it is 680 gms. Anyway, we are doing quite okay in this respect.
I had a talk with Arj about the weight during the designing phase, and he told me that the weight might not always work for better. I thought about this long and hard. The Cello sonics seem to get better noticeably with the use of the weight, according to some of the actual users and reviewers. The original Scheu weight is quite expensive at more than Rs 6000, and would take time to get here anyway. That's when I decided to give it a try, but wanted to reproduce the original Scheu weight with exact specifications.
Let me give you my first impressions with the weight after a brief listen. I will later produce a more faithful report after extended listening and comparisons. With the weight the sonics has become more focussed with a better signal to noise ratio, resulting in a better dynamic range in a subtle but significant way. All the different instruments have got better identity, with the quiet phases becoming really quiet. In addition, the vocals have become more pronounced, which is immensely to my liking.
I must also tell you that before using the weight, I was really worried and a bit scared. The weight of 680 gms is not a very small amount, and with the bit of loose string I have around the platter (because Scheu apparently insists that the string should just be tight enough to make the platter rotate), I did not know if the platter would rotate at all, and if it does, whether it will rotate at the correct speed. But, everything went on extremely smoothly. I did not even need any speed adjustment, the speed locked perfectly. Incredible!
Hopefully tomorrow I will put up some pictures of the weight (in action) and the dustcover. Ali (magma) deserves a big 'Thank you' from me. BTW, he has told me not to recommend the dustcover to anybody, because he had a lot of trouble shipping the dustcover to me. He actually had to make a wooden crate for the dustcover for safe shipping.
Regards.
Here is a small update on my TT. I have not made much progress with the phono pre, still searching. However, I have now two important accessories: a dustcover for the TT and the centre weight, both made by Ali (magma) and shipped to me.
The original centre weight from Scheu weighs about 680 gms. It's made of Aluminium and then anodized. I was able to find some of the specifications of the weight from the net. Then knowing the density of Aluminium, and calibrating the pictures from the net by the known dimensions (like the bottom and top diameters and the height, available for example from coolgales.com), I had to work a bit hard one afternoon, to come up with the exact specifications which were then given to Ali. Ali has done a great job with the fabrication of the weight.
We decided to make one small change from the Scheu design for the weight. The Scheu weight has a small spirit level on top of the weight at the centre. Since I already have a very precise spirit level from Stanley, I did not want another spirit level on my weight, and instructed Ali accordingly. Because of this, I had to make small changes to the design so that the weight does not increase. Ultimately in its final form the weight is between 680 and 685 gms. The coolgales.com states it at 700 gms, although another source says it is 680 gms. Anyway, we are doing quite okay in this respect.
I had a talk with Arj about the weight during the designing phase, and he told me that the weight might not always work for better. I thought about this long and hard. The Cello sonics seem to get better noticeably with the use of the weight, according to some of the actual users and reviewers. The original Scheu weight is quite expensive at more than Rs 6000, and would take time to get here anyway. That's when I decided to give it a try, but wanted to reproduce the original Scheu weight with exact specifications.
Let me give you my first impressions with the weight after a brief listen. I will later produce a more faithful report after extended listening and comparisons. With the weight the sonics has become more focussed with a better signal to noise ratio, resulting in a better dynamic range in a subtle but significant way. All the different instruments have got better identity, with the quiet phases becoming really quiet. In addition, the vocals have become more pronounced, which is immensely to my liking.
I must also tell you that before using the weight, I was really worried and a bit scared. The weight of 680 gms is not a very small amount, and with the bit of loose string I have around the platter (because Scheu apparently insists that the string should just be tight enough to make the platter rotate), I did not know if the platter would rotate at all, and if it does, whether it will rotate at the correct speed. But, everything went on extremely smoothly. I did not even need any speed adjustment, the speed locked perfectly. Incredible!
Hopefully tomorrow I will put up some pictures of the weight (in action) and the dustcover. Ali (magma) deserves a big 'Thank you' from me. BTW, he has told me not to recommend the dustcover to anybody, because he had a lot of trouble shipping the dustcover to me. He actually had to make a wooden crate for the dustcover for safe shipping.
Regards.