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Post by gninnam on Jun 19, 2020 17:16:21 GMT
Found a pic (from 2010) of one of the many amps stashed away in the garage:  How about this for a lashed up tonearm - about 16 inches:   |
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Post by gninnam on Jun 19, 2020 17:17:11 GMT
An old Garrard SP25 MKIII Gave this to my neighbour (after servicing it) as he had loads of albums but nothing to play them on  |
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Post by gninnam on Jun 19, 2020 17:23:22 GMT
And another amp in the garage - It was my uncles who, when passed away was given to me - he bought it new in '73  And an old and large pair of speakers - will do something with them one day.....  |
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Post by dsjr on Jun 19, 2020 17:36:01 GMT
Ummm - It was a Garrard SP25 mk2  Replacing a perfectly good Lenco tonearm (with today's cartridges) and replacing with a BASIK PLUS??? Wash your mouth out sir, the admittedly massy Lenco arm tracks an AT95E (as well as a K9 in the past I remember and now, an AT540) far better than a Basik Plus and I have examples of each here to prove it The lenco arm by all accounts is a perfect match to a Denon 103 as well and the internal woring copes just fine as well I gather (you can't easily get the headshell socket off to re-wire it, so bloody good job) |
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Post by gninnam on Jun 19, 2020 18:04:17 GMT
I have/had 2 and thought it was the MKIII I had given him  We will have to agree to disagree regarding the Linn arm against the Lenco arm - I know which my ears prefer. |
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Post by macca on Jun 19, 2020 19:11:48 GMT
I've gpt the matching tuner for that Leak amp. Doesn't work mind. But great looking kit.
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Post by gninnam on Jun 19, 2020 20:05:01 GMT
I've gpt the matching tuner for that Leak amp. Doesn't work mind. But great looking kit. I like the look of the old Leak stuff - sound is average though |
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Post by antonio on Jun 20, 2020 4:58:48 GMT
Love the turntable, plenty of WAF
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Post by gninnam on Jul 17, 2020 16:54:25 GMT
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Bigman80
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Post by Bigman80 on Jul 17, 2020 17:13:58 GMT
Oh that looks sensational!
I love it.
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Post by gninnam on Jul 17, 2020 18:17:08 GMT
Aye - it does look good - a picture from the underside:  You can see how the Orbe platter has a very large amount of mass removed compared to the acrylic platter Hope it improves the SQ! |
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Bigman80
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Post by Bigman80 on Jul 17, 2020 19:52:19 GMT
Aye - it does look good - a picture from the underside: You can see how the Orbe platter has a very large amount of mass removed compared to the acrylic platter Hope it improves the SQ! Any thoughts yet? |
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Post by gninnam on Jul 17, 2020 19:55:24 GMT
Aye - it does look good - a picture from the underside: You can see how the Orbe platter has a very large amount of mass removed compared to the acrylic platter Hope it improves the SQ! Any thoughts yet? Patience dear boy  |
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Bigman80
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Post by Bigman80 on Jul 17, 2020 20:24:17 GMT
Lol
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Post by gninnam on Jul 18, 2020 9:14:35 GMT
Oliver - so far so very good Played many albums/12 inches and have to say it has improved the SQ no end. The first album I played was an old fav of mine and probably played the most out of all of my collection (Dead Can Dance - In to the Labyrinth). First thing I noticed was how detailed it appeared to be with the high hats especially sounding a lot clearer than they did previously. Each instrument seemed so clear and easy to place and I noticed that the percussion on this album seemed to stand out in a way it didn't before. After this I played some soul from Barbara Mason - 'A Piece of my Life' The production stuck out for me as everything seemed so crisp and clean, here voice sounding like she was just in front of me and trying to seduce me (oh err). There are 2 negatives 1. I knew my turntable speed wasn't bang on but got used to it, the new platter is slightly smaller in diameter which moved the speed closer to what is should be (it was out by about .3 RPM) so I could pick up the slight change but I could always alter the speed, but being the AC PSU/Motor it requires some major surgery (hence why I haven't bothered to change it yet....) 2. The recess for the nut appears to be slightly lower and wider than the original platter - this means the nut and the nut cover (best way to describe it) appear to be flush now so when you tighten the clamp it no longer pushes the record down as much. But, the SQ has improved - will continue to play a few more records tomorrow and make a final assessment |
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Bigman80
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Post by Bigman80 on Jul 18, 2020 9:29:57 GMT
Oliver - so far so very good Played many albums/12 inches and have to say it has improved the SQ no end. The first album I played was an old fav of mine and probably played the most out of all of my collection (Dead Can Dance - In to the Labyrinth). First thing I noticed was how detailed it appeared to be with the high hats especially sounding a lot clearer than they did previously. Each instrument seemed so clear and easy to place and I noticed that the percussion on this album seemed to stand out in a way it didn't before. After this I played some soul from Barbara Mason - 'A Piece of my Life' The production stuck out for me as everything seemed so crisp and clean, here voice sounding like she was just in front of me and trying to seduce me (oh err). There are 2 negatives 1. I knew my turntable speed wasn't bang on but got used to it, the new platter is slightly smaller in diameter which moved the speed closer to what is should be (it was out by about .3 RPM) so I could pick up the slight change but I could always alter the speed, but being the AC PSU/Motor it requires some major surgery (hence why I haven't bothered to change it yet....) 2. The recess for the nut appears to be slightly lower and wider than the original platter - this means the nut and the nut cover (best way to describe it) appear to be flush now so when you tighten the clamp it no longer pushes the record down as much. But, the SQ has improved - will continue to play a few more records tomorrow and make a final assessment The most important thing is that its done the job of improvingthe SQ, so the two little niggles can be largely ignore IME lol Where did you get it? |
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Post by Deleted on Jul 18, 2020 10:12:16 GMT
Aye - it does look good - a picture from the underside: You can see how the Orbe platter has a very large amount of mass removed compared to the acrylic platter Hope it improves the SQ! The removed mass increases rotaional inertia at the periphery of the platter. |
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Post by gninnam on Jul 18, 2020 10:21:50 GMT
Oliver - so far so very good Played many albums/12 inches and have to say it has improved the SQ no end. The first album I played was an old fav of mine and probably played the most out of all of my collection (Dead Can Dance - In to the Labyrinth). First thing I noticed was how detailed it appeared to be with the high hats especially sounding a lot clearer than they did previously. Each instrument seemed so clear and easy to place and I noticed that the percussion on this album seemed to stand out in a way it didn't before. After this I played some soul from Barbara Mason - 'A Piece of my Life' The production stuck out for me as everything seemed so crisp and clean, here voice sounding like she was just in front of me and trying to seduce me (oh err). There are 2 negatives 1. I knew my turntable speed wasn't bang on but got used to it, the new platter is slightly smaller in diameter which moved the speed closer to what is should be (it was out by about .3 RPM) so I could pick up the slight change but I could always alter the speed, but being the AC PSU/Motor it requires some major surgery (hence why I haven't bothered to change it yet....) 2. The recess for the nut appears to be slightly lower and wider than the original platter - this means the nut and the nut cover (best way to describe it) appear to be flush now so when you tighten the clamp it no longer pushes the record down as much. But, the SQ has improved - will continue to play a few more records tomorrow and make a final assessment The most important thing is that its done the job of improvingthe SQ, so the two little niggles can be largely ignore IME lol Where did you get it? Agree - with my ears I hear a an improvement so very happy. Pete from AOS asked an engineering company to assist with producing them - I got it direct from Pete - but any future ones will come from the engineering company direct. Called TruePoint, they sell other HiFi based stuff to (for the Gyro/Orbe, they make and sell the pylon replacement kit and have also designed a new PSU with push button speed changing). |
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Post by gninnam on Jul 18, 2020 10:22:37 GMT
Aye - it does look good - a picture from the underside: You can see how the Orbe platter has a very large amount of mass removed compared to the acrylic platter Hope it improves the SQ! The removed mass increases rotaional inertia at the periphery of the platter. Thanks for the info - still prefer the sound of the new platter to the original. |
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Post by firebottle on Jul 18, 2020 11:47:30 GMT
Surely the 'increased rotational inertia' is dependent on the respective density of the materials used?
What material is the Orbe platter made from?
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Post by gninnam on Jul 18, 2020 11:53:15 GMT
Not sure what it is made of but I no it is not made from a single piece of whatever it is.
They used to say it was impedance matched to the vinyl so could it be made from a similar material to the record?
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Post by Deleted on Jul 18, 2020 12:26:33 GMT
The increased rotational inertial is related to how far away from the pivot point the mass is. On the original orbe platter the mass is concentrated on the outer edge because of the removal of the mass closer in. meaning that it 'looks'(from the motors point of view if you care to personify these things) heavier than it is because the moment of inertia is higher the further away the mass concentration is from the pivot. More energy is required to start it spinning and stop it spinning the higher the moment of inertia is
The acrylic platter will have a fairly uniform density, its moment of inertia 'may' be different to the original. Just because it is heavier, it doesnt necessarily mean that its moi is any different. Mitchell probably machined the original platter in that way for resonance purposes, its more expensive in terms of machine time and waste to go through the process of extra machining.
I think the original is made of delrin iirc
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Post by Deleted on Jul 18, 2020 16:59:41 GMT
The removed mass increases rotaional inertia at the periphery of the platter. Thanks for the info - still prefer the sound of the new platter to the original. Probably a better impedance match with vinyl. But then I could just be talking shite... Wouldn't be the first time. |
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Post by Deleted on Jul 18, 2020 17:04:56 GMT
Surely the 'increased rotational inertia' is dependent on the respective density of the materials used? What material is the Orbe platter made from? True. A fact I conviently overlooked. |
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Post by Deleted on Jul 18, 2020 17:09:14 GMT
Not sure what it is made of but I no it is not made from a single piece of whatever it is. They used to say it was impedance matched to the vinyl so could it be made from a similar material to the record? I should read more posts before commenting. |
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Post by Deleted on Jul 18, 2020 17:22:32 GMT
Surely the 'increased rotational inertia' is dependent on the respective density of the materials used? What material is the Orbe platter made from? True. A fact I conviently overlooked. Well.to be fair. To be fair. I was thinking in terms of the original platter machined, as it is, compared to it not being machined, as is the new platter. |
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Post by gninnam on Aug 11, 2020 9:03:15 GMT
Slight change in the listening area Running out of space upstairs for my vinyl so replaced the 2 small record holders either side of the listeing sofa with double height ones.  Makes the room feel darker and smaller but hasn't appeared to affect the sound too much More room upstairs now for more records |
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Post by gninnam on Aug 13, 2020 15:53:02 GMT
My speakers have gone all shy:   |
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Post by Deleted on Aug 13, 2020 16:35:55 GMT
Same question as elsewhere but why?
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Bigman80
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Post by Bigman80 on Aug 13, 2020 16:55:13 GMT
Same question as elsewhere but why? Keep the sun off? |
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