Pickering XV-15/1200E
A moving-magnet cartridge that asked a three-quarter-gram tracking force of the record and promised 35 dB of separation in return.
Overview
The number that stops a collector cold is 3/4 gram. Pickering rated the XV-15/1200E to track at three-quarters of a gram, with a tolerance of +1/2 gram and -1/4 gram, and everything else about the cartridge follows from that figure. A stylus riding that lightly does less work against the groove walls. Pickering's pitch for the 1200E leaned hard on exactly that: the company claimed an exceptional ability to pick up material recorded at the lightest possible tracking forces, plus the high-frequency tracing to match. Buy the marketing or don't, the spec sheet shows who this cartridge was built for - someone running a serious tonearm and willing to fuss over setup to keep the needle from plowing.
The rest of the numbers are just as deliberate. Frequency response is quoted from 10 Hz to 30 kHz, well past the audible band, and nominal channel separation is 35 dB. Nominal output is 4.4 mV, a healthy figure for a moving-magnet design that won't leave a phono stage straining. The stylus tip is given as 0.0002" x 0.0007" - a fine, narrow profile that fits the low tracking force. Pickering summed the package up in one word in its advertising: precision. The copy billed the 1200E as the culmination of the company's 25 years of magnetic-cartridge work and, in the breathless register of the era, as the furthest advance achievable "today - and perhaps in the foreseeable future." That is marketing talking, not a lab bench.
Pickering designed the 1200E for use with all stereo and four-channel derived compatible systems. That puts it in the matrix and derived-compatible quadraphonic camp, not the discrete CD-4 one. The company drew that line explicitly in its own literature, positioning the 1200E on the stereo/matrix side and reserving a separate model, the UV-15/2400-Q with its Quadrahedral stylus, for discrete four-channel playback. For a buyer in the mid-1970s facing a shelf of competing quad formats, Pickering made it plain which cartridge went with which system.
Period advertising for the 1200E ran across the major audio books of the day. High Fidelity (September 1972, p.4) carried the launch copy describing the cartridge as a significant advance in the state of the art. The same "precision" pitch, complete with the 10 Hz to 30 kHz response, 4.4 mV output, and 35 dB nominal separation, reappeared in HiFi-Stereo (October 1972, p.107) and again in Audio (December 1972, p.21). The spec block is repeated almost verbatim across those placements, so cross-checking a used example's claimed specs against the original ads is reasonably straightforward.
The low tracking force is the thing to weigh before buying one. Three-quarters of a gram is a demanding target. It rewards a well-sorted arm and a clean, unworn stylus, and it punishes anything less. A 1200E with a tired or unknown stylus shouldn't be run at the rated force and expected to behave, because the whole design depends on the tip being in good shape. The body itself is the durable half.
The XV-15/1200E is not a casual drop-in. It has a specific job, light-tracking stereo and matrix playback, and it suits someone who already runs a front end that can support a three-quarter-gram setting. With the stylus sorted and an arm that holds the force steady, the 35 dB separation and extended response are there to use.
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