Adc xlm mk2 improved

[Barry]

Once I can drag myself away from the M55e /Jico SAS I will be hooking the ADC up. Funny you should mention the Decca Geoff as I did not happen on the ADC by accident. It was recommended to me by a friend who has always had Deccas. He said obviously the ADC isn't visceral like a Decca but has some attributes, like you said in a more subtle way.

I believe the ADC is a type of Moving Iron principle but not executed like a Decca?

The ADCs use an induced-magnet principle. The magnet is fixed (and part of the plug in stylus/cantilever assembly) as are the coils (part of the cartridge body). What happens is the stylus/cantilever form part of the magnetic circuit, with the fixed magnet inducing magnetism in the permeable cantilever ('moving iron') which in turn generates a current in the fixed coils. The advantage is that the cantilever can be made to be very low mass and the suspension high compliance.

Deccas are also fixed coil, fixed magnet designs and can be equally described as moving iron, however in the Deccas a sum and difference arrangement is used and the design is virtually cantilever-less. This allows the Deccas to display their superb transient attack and presense, but does mean the vertical compliance is pitifully low.

I love them both, as I do the B&O variable reluctance cartridges (also fixed coil, fixed magnet design).

[walpurgis]

I believe the ADC is a type of Moving Iron principle but not executed like a Decca?

It is somewhat similar. There is a fixed magnet and the cantilever moves an iron tip that is within the influence of the magnet. Hence the 'induced magnet' description.

[struth]

sounds interesting. Thanks to both descriptions.

[Jason P]

I had one - falls into the 'why the hell did I sell that' category. A very good cart once set up correctly.