My System
John Wood KT88 Amp.
Paradise Phono Stage
Sony TTS-8000 Turntable.
PMAT-1010 MK6 Tonearm.
Ortofon Cadenza Bronze
Sony X555ES Cd Player
Yamaha NS1000m Speakers
The Decca (London) International, with the spirit level headshell, used opposing magnets but was as you say a poor little thing: badly made and somewhat clunky. The only Decca arms worth considering are IMO the original 'Professional' and the later 'ffss' (upgraded to Super level and fitted with bias compensation), neither of which are unipivot designs.
One left-field consideration might be the Audio & Design (later known as the Keith Monks) M9BA unipivot design. However it uses four small arcuate mercury pools as part of the signal connection, so is somewhat suspect when it comes to health and safety. It was available with an extra heavy counterweight for use with the Decca Mk. IV.
When Jimmy Hughes reviewed the Mk. IV in Hi-Fi Answers, he used it in a Linn Ittok arm on a Linn Sondeck. A strange combination IMO, and he had problems with hum; no doubt caused by the three-wire connection used by Decca.
The Decca/Hadcock was almost de rigeur in the late '80s, but that was using the Mk. V and later versions which are lighter than the Mk. IV.
If you are getting good results using the Decca in the Alphason arm, then I see no reason why you should look elesewhere.
Barry
Location: Birmingham
Posts: 207
I'm Bikram.
I have Decca London international tonearm and i really like it. The base is very good.