DJO wrote:Well it's you all who need to bring obvious proofs & measurements that a discontinued tonearm from a defunct firm is state of the art & you've to pay hundreds of $ for it used !
I think you are being a little unfair The HR-100S may look a little old fashioned but it was state of the art back in the day and compared favourably to other super arms like the Zeta, SME IV, Syrinx PU3, Kuzma etc. I don't know what they fetch these days but it will definitely be in the hundreds for an arm of this quality? The fact that it was discontinued in the 1990's is neither here nor there.
Alphason HR-100S MCS £385 HiFi Review 1987
"Now whilst it is fairly apparent to even the most casual observer where the money goes with an arm like the Series IV. one has too look a little harder at a product like the Alphason HR-100S-MCS which tends to hide it's technology under a rather less obvious exterior.
Where the SME features a magnesium arm tube, the Alphason designer has chosen to use titanium for this part of the HR-100S, Unlike the other arms in this test, the Alphason's arm tube is S shaped and has a non-joint headshell: the platform onto which the cartridge is bolted is actually the result of opening out and flattening the end of the tube; a strengthening plate is then bonded to the underside of the platform. The tube is also internally damped.
The arm also departs from standard practice in the bearings it employs. Its designer, Mike Knowles, looked at all the different bearing choices open to him when he designed the arm and decided that he was not prepared to accept the compromises inherent in the available options. His answer to getting a bearing that would offer the lowest level of friction possible, with the minimum of unwanted play, and maximum robustness and reliability, was to use a ceramic material (said to be twenty times harder than conventional bearing materials) which is diamond polished for the pivots. The result is a bearing which he claims will be more resistant to the kind of abuse that some end-users of expensive arms see fit to inflict upon them: careless removal from arm clips, and changing cartridges with the arm still attached to the turntable, In the latter case this a useful provision as the arm cable is non-removable.
The version of the arm we tested comes fitted with Mono Crystal Silver cable throughout, van den Hul M.C. Cl-502 - hence the MCS designation - which caused no problems when being 'dressed' to suit either the Linn or Roksan decks."