dover

Responses from dover

SME V Tonearm on eBay Hong Kong Sellers are FAKE!!!
@chakster The B60 replica in the you tube video is garbage.Compared to the original I have, the motion up and down of the pillar housing appears to be rattly, loose and wobbly. There is no way mine moves up and down that fast, clearly the toleranc... 
Fidelity Research FR-64x
@sampsa55 For a point mass the moment of inertia I = mass x Radius ( distance from pivot ) squared. The further you push a weight out the moment of inertia increases disproportionately ( by the distance squared ). 
Is a SUT needed?
@handymannYou might want to check the gain set up in your Theta - it is adjustable. Michael Fremer used 56db gain setting with the Dynavector XV1S when he tested the Theta, there is still another 20db available.The use of an SUT is debatable - you... 
401 birch or slate?
@noromance Drop in replacement. Undo 2 screws holding the top of the idler, lift out the idler wheel and drop in the replacement - literally 2 minute job. Drop a little oil on the spindle ( top and bottom ) to avoid any scouring. The bushes in the... 
401 birch or slate?
@noromance I would describe the improvement of the AF idler wheel as similar to a cartridge upgrade - the higher frequencies were more detailed, more nuanced. There were also improvements in coherency and musical timing.When we upgraded to the Art... 
SP10mk2: OMA Graphite plinth vs.Dobbins plinth
The plinths for the SP10 series are -SH10-B4 - for SP10mkii, el cheapo box, NOT obsidian, 5kgSH10-B3 - for SP10mkii & SP20 obsidian /wood base, 12kgSH10-B5 - for SP10mkiii ( round mounting hole), obsidian, 19kgSH10-B7 - for SP10mkii & iii ... 
I love my PS Audio Direct Stream with Red Cloud :)
Installed Red Cloud a couple of nights ago - system comprises Zanden transport, PS Audio Directstream, Air Tight ATC2 & ATM3 monos, Tannoy Autograph speakers. Substantial increase in resolution of individual instruments right through the midra... 
Lyra Delos - Dirt Build up on the cantilever
@jcarr When I was a dealer in the 80's we used Garrott Bros for cartridge servicing & upgrades. "Gumming up cantilevers" were sometimes caused by excessive use of products like "stylast". Also received feedback from John & Brian that they ... 
Help Identifying Koetsu Onyx
This looks odd, could be fake. The original Onyx’ from the 80’s had longer bodies & flat bottom. Never seen a slant front bottom on an Onyx before - I have only only seen this shape on Koetsu Black Goldline & Std Koetsu Red/Rosewood. The R... 
Stylus force digital scales
@cleeds We'll have to agree to disagree.I do agree that the deviation in VTF with dynamically balanced arms will be less than statically balanced arms on warps, but don't agree that VTF can be precisely maintained over a warp even with dynamic bal... 
koetsu
@nandric Not so, no holy water consumed prior, but yes we do produce some world class wines. You are no doubt aware that your fellow countrymen contributed greatly to our wine industry following the migrations for the gold rush in the 1800's and l... 
koetsu
@chakster That is the million dollar question. I have an Ikeda Kiwame (0.15mv) & Dynavector Karat Nova 13D (0.12mv) and have tried many options over the years.Tubes - noisy but preserve timingFets - grainy/opaqueTransformers - low noise but ac... 
what is the problem with too much tracking force?
In the case of moving coil cartridges too much tracking force will mean that the coils are operating more in the non linear range of motion ( by non linear I mean there are non linearities in the induced signal from the coil and magnet at the extr... 
koetsu
roberjerman09-11-2017 9:36pmI recommend a moving coil step up transformer (SUT) for use with any low-output (less than 1 millivolt) mc cartridge. SUTs are a disaster for amplification of LOMC’s. Transformers have non linearities, particularly with... 
Stylus force digital scales
cleeds814 posts09-25-2017 9:45amAlso, if you use a dynamically balanced arm, VTF will remain constant even while playing a warped record.That statement is not true. Most dynamic balancing is applied with a spring which is designed to provide a res...