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Omni-Pivot Induced-Magnet Stereo Cartridge

elliptical stylus



Since the magnet itself in a moving magnet cartridge contributes significantly to its mass, ADC created and patented an induced magnet cartridge that reduces the mass in the moving system.

This allows the stylus to track with a lower force resulting in superior tracing accuracy and low distortion.

The XLM mkII improved has a Diasa tip, a diamond bonded to sapphire. Instead of the usual aluminium bushing to hold the diamond, the diamond tip is bonded to a sapphire base synthesizing a nude jewel mounting with very low mass.

The XLM is also available as the Integra, with the cartridge built into a moulded carbon fibre headshell.


Diamond tip: diasa elliptical 0.0003 x 0.0007"

Tracking force: 1.2g +-0.3g

Frequency response: 15Hz to 24kHz

Output: 6.05mV


There are probably only three or four phono cartridges that legitimately rank in the pantheon of all time super cartridges. Of these, the ADC XLM must be included, as many people consider it something of a reference standard.


instruction/owners manual  English - Rice

test reports  English

Integra mkIII test report  English

mkII test report  English

mkII improved instruction/owners manual  English

mkIII instruction/owners manual  English - Rice

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ADC XLM owners manual, service manuals and schematics are for reference only and the Vinyl Engine bears no responsibility for errors or other inaccuracies. The PDF files are provided under strict licence. Reproduction without prior permission or for financial gain is strictly prohibited. This website is not affiliated with or sponsored by ADC.


recommended tracking force

this data from adc illustrates the false idea that low tracking force always results in lower wear when in fact, too low a pressure CAUSES damage.

very few arms could adequately track the XLM at one gram, my self modified rabco st4 arm accomplished that but most arms required at least 1.5gr.

original XLM

i agree it is a pinnacle design. too bad peter pritchard lost the patent in the sale to bsr. they even stopped him from making the sonuses.

the natural and round bass, the soundstaging, dynamics, and tope end were all top notch. even though the original specs claimed down to 0.5gr vtf, it was largely NOT true. they usually required 1.5gr in most arms. i modified a rabco st4 arm that reliably could track that cart at 1.0gr.

if the XLM could be duplicated, and i mean DUPLICATED, i would be highly tempted to return to mm. as it is, the similar sounding grace f9e is in my hands and i MUST mount it soon.

see the for my system.

ADC XLM tracking

Mounted in the original ADC wooden arm this cartridge tracks the Shure Tracking Course record without clipping with .6 p
The record must be as clean as brand new, then it sounds like an open window at the concert hall.
I have modern cartridges like Benz, Ortophon and more with of course excellent specs and tests, but when I want to hear music I change back to this wonderful ADC XLM