데카 스트레오 암과 쉘 등
런던에서 산것으로 기억되는 데카 스트레오 암과 카트리지 등 완벽한 셋이다.
가라드에 셋팅해서 듣고 싶어서 보관중인 것이다.
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DECCA ffss pick-up arm and cartridge
The Decca ffss was one of the first high-fidelity stereo cartridges and amazingly it still has its devotees who insist its performance in some key areas still has not been surpassed.
I'm at the beginning of my adventures with the Decca. It is about to be fitted to my Goldring 88 deck. I'll keep you posted.
Meanwhile . . .
Internals
Decca ffss construction and testing photo
An advertisement for the Decca ffss mkI #1, #2
Decca ffss mkI First published review circa 1957, page 1, page 2,
Decca ffss mkII
Decca ffss mkIII
Externals
Audio and Music Bulletin: Those Were The Days
"Much of the early Decca pickups designs such as the Deram are ceramics and while they claimed to be hi-fi at the time they are mere curiosities by now. The line of cartridges that have most interest amongst collectors today was originally introduced in the late 50 or early 60's as London FFSS (or so I believe, very difficult to find good info on these products), this is a cantilever less design and has a special headshell connector (so they need a Decca arm or an ortofon/SME headshell adapter, while Decca arms are easy to find I have only once seen an adapter for sale) that vent through MkII and MkIII revisions cumulating in the release of the MkIV in 1967 or so which was the first cart from from the company that was available with a standard headshell mount, and the best of the MkIV versions were the C4E and SC4E that featured a elliptical stylus and the RC4 that has a sherical one. It should be observed that these version of the London carts have been hyped up much in the last few years and they do indeed have redeeming qualities, but you should be aware of a few facts before parting out with your hard earned cash, firstly the pole pieces rust and break off so the lifetime of those carts is not all that great, secondly the cantilever less design of the carts mean that they collect an unusually high amount of dirt inside and need to be cleaned frequently, however the top of the cart can be slid off for adjustment of the channel separation (all the way to mono BTW) and can help in cleaning the cart incidentally, thirdly they are sensitive to grounding, much more so than most carts and finally these MkI to MkIV version while similar in design to the current versions they are much bigger and heavier and can be a pig to set up and will only mate with a heavy or damped arms. The MkV was released in the mid/late 70's and is the basis for the cartridges that are being made today, while it retains the peculiarities of earlier designs such as the wildly differing vertical and horizontal modulations the new design was much lighter and smaller than earlier models and thus it was easier to match them to modern arms, not to mention less record wear etc. The original Gold features an elliptical stylus but the post 80 versions are called Super Gold and feature a VDH stylus and a better designed case and may be a better second hand value although there were some complaints that this version sounded brittle compared to the Gold one, the plain London models all have a spherical stylus. There was at one time also a Decca "grey" cartridge available in a mono configuration with a stylus cut for the playback of 78's.
The specifications for the original MkV London carts are : Output: 5mV at 5cm/sec. Frequency range: 20Hz to 20KHz. Stylus Tip: Elliptical major axis 0,0006 minor axis 0,0003 . Vertical tracking angle: 15 degrees. Compliance: Lateral: 15 X 10-6 cm/dyne, Vertical: 7.5 X 10-6 cm/dyne. Channel balance: Within 1dB. Inductance: 560 mH per channel. DC resistance: 2,200 ohms per channel. Recommended input impedance: 50K ohms. Tip Mass: Less than 1 milligram. Tracking weight: 1 to 2 grams (1.5 grams recommended). . . "
Contributions very welcome.
출처 http://www.btinternet.com/~a.d.richarson/hifi/decca/decca.html