Senior Member
Location: Cheshire, UK
Posts: 2,829
I'm Clive.
It's not so easy.....res freq behavior of these arms doesn't seem to follow what pivoted arms do, actually they seem a lot less critical than pivoted arms in terms of res freq in that they cope well will seemingly mismatched cartridge / arm combinations. Suck it and see if you'll pardon the expression when discussing wand length....Originally Posted by jkeny
Trade: John Kenny
Location: Ireland
Posts: 201
I'm John.
LOL!
Trade: Magna Audio
Location: The New Forest
Posts: 1,861
I'm Steve.
Ladegaard talked of getting the res freq down to a couple of Hz. The carbon wand does sound better than the ali one - have done back to backs with it now, same vertical pivot blades etc...
Other idea a friend came up with is to dampen the blade contact point with some correctly viscous material - trying a spot of Vaseline at the moment.
Could have tiny end plates to the V part of the bearing and run an oil drop but that would be messy.
System: Turntable : SP10 MKII slate plinth, Custom Ebony tonearm board, Arm : Fidelity Research FR64s, Cartridge : SPU Royal N. SUT : Lundahl 1:13. Phonostage : Icon Audio, Streaming RPi/Kali reclocker -> I2S -> DSP XO / Pre / 4 DAC's : WAF Najda, 5 Poweramps : 3 x EL84 SET's, 2 x D class amps on bass channels, Speakers : 5 way front loaded horn system: 2 X Tapped sub 15" LF drivers / 2 X Exponential mid bass 15" drivers / Tractrix 200Hz mid horns with JBL2482's, / Tractrix 550Hz upper wooden horns with factory refurb'd Vitavox S2's / Raal Lazy Ribbons as high frequency tweeters. Wires: good silver or good copper where best suited. DIY RCM.
Maker of tonearm boards, armpods, Tannoy GRF style speaker cabinets, horn speakers, counterweights and more.
For more information about my creations and products please click below
http://fosworld.wixsite.com/magna-audio & on Instagram https://www.instagram.com/magna_audio/
Trade: Magna Audio
Location: The New Forest
Posts: 1,861
I'm Steve.
The Vaseline worked very well
Top end is really good now. Nicely balanced with the rest.
To answer the arm length issue - I think the photo's I took make it look like the manifold / arm carrier is a long way back.
The total length from stylus to knife edge bearing is 90mm. That's how it has to be with the Rega mount on this deck unless I make another adaptor (pretty easy to do admittedly) - Something to play with when I am bored.
Headshell project is coming along. Took a couple of hours to hue this out by hand.
Must make sure not to cock it up when drilling / tapping for the cart retaining holes/threads - yes, I know, should have done that first but tap is in the post...
Last edited by Magna Audio; 06-05-2009 at 21:12. Reason: Added stuff about arm length
System: Turntable : SP10 MKII slate plinth, Custom Ebony tonearm board, Arm : Fidelity Research FR64s, Cartridge : SPU Royal N. SUT : Lundahl 1:13. Phonostage : Icon Audio, Streaming RPi/Kali reclocker -> I2S -> DSP XO / Pre / 4 DAC's : WAF Najda, 5 Poweramps : 3 x EL84 SET's, 2 x D class amps on bass channels, Speakers : 5 way front loaded horn system: 2 X Tapped sub 15" LF drivers / 2 X Exponential mid bass 15" drivers / Tractrix 200Hz mid horns with JBL2482's, / Tractrix 550Hz upper wooden horns with factory refurb'd Vitavox S2's / Raal Lazy Ribbons as high frequency tweeters. Wires: good silver or good copper where best suited. DIY RCM.
Maker of tonearm boards, armpods, Tannoy GRF style speaker cabinets, horn speakers, counterweights and more.
For more information about my creations and products please click below
http://fosworld.wixsite.com/magna-audio & on Instagram https://www.instagram.com/magna_audio/
Trade: Magna Audio
Location: The New Forest
Posts: 1,861
I'm Steve.
At last the MKII is finished
Now for an acrylic dust cover... Just happen to have a sheet in the garage...
System: Turntable : SP10 MKII slate plinth, Custom Ebony tonearm board, Arm : Fidelity Research FR64s, Cartridge : SPU Royal N. SUT : Lundahl 1:13. Phonostage : Icon Audio, Streaming RPi/Kali reclocker -> I2S -> DSP XO / Pre / 4 DAC's : WAF Najda, 5 Poweramps : 3 x EL84 SET's, 2 x D class amps on bass channels, Speakers : 5 way front loaded horn system: 2 X Tapped sub 15" LF drivers / 2 X Exponential mid bass 15" drivers / Tractrix 200Hz mid horns with JBL2482's, / Tractrix 550Hz upper wooden horns with factory refurb'd Vitavox S2's / Raal Lazy Ribbons as high frequency tweeters. Wires: good silver or good copper where best suited. DIY RCM.
Maker of tonearm boards, armpods, Tannoy GRF style speaker cabinets, horn speakers, counterweights and more.
For more information about my creations and products please click below
http://fosworld.wixsite.com/magna-audio & on Instagram https://www.instagram.com/magna_audio/
Posting Permissions
Reply With Quote
