ORTOFON 2M Red stylus for ORTOFON 2M Red cartridge
NEEDLE SPECIFICATIONS:
• .3x.7 Elliptical Diamond Stylus
• 16, 33 or 45rpm LP's, NOT for 78rpm records
• Tracking force range: 1.6-2.0g (16-20 mN)
• Tracking force recommended: 1.8 g (18 mN)
• 100% Genuine Ortofon shipped in Genuine Ortofon cube packaging
Information regarding the 2M RED cartridge:
from http://www.positive-feedback.com/Issue39/ortofon2m.htm :
"The 2M series is available in four different iterations, which are divided into two tiers. The 2M Red ($99) and Blue ($199) share the same plastic cartridge body and engine, but where the Red uses a standard elipitical stylus, the Blue employs a polished, nude elipitcal diamond. The second tier is comprised of the Bronze ($389) and Black ($669), which share an advanced Noryl/glass composite body and a more sophisticated engine. The Bronze sports a nude fine-line diamond, while the Black has a top-of-the-line Shibata profile. Both the Bronze and Black also use silver-plated wire internally instead of copper. Styli are interchangeable within both tiers, so the buyer of a Red can cost-effectively upgrade to Blue for only the price of the stylus unit. Ditto with the Bronze and Black."
From Ortofon:

2The 2M series were developed in conjunction with Danish designer
Møller Jensen Design – the same designer who designed the award winning
MC Jubilee and Kontrapunkt series. Inspired by the facets of a diamond,
whose contours gracefully trace the grooves on a record’s surface, the
2M’s handsome elegance establishes a great combination of form and
functionality.
2M are designed for precise and accurate
retrieval of the information in the record groove. Our philosophy is to
play the record sound as accurate as possible, without coloring the
sound. We have optimized the design for ease of mounting the cartridge,
weight and size to fit the most common turntables at the market today.
The
name 2M was selected among several ideas. We wanted a modernname which
should be easy to pronounce and to remember, and therefore an alpha
numerical name was chosen. 2M means MM, which is the abbreviation for
moving magnet.
Of course the 2M isn’t just another pretty
face. It has been engineered to the highest standards and is congruent
with Ortofon’s unrelenting commitment to providing the most precise and
accurate reproduction possible without coloration.
The 2M series
of cartridges feature Ortofon’s trademark split pole pins, an invention
which enables moving magnet cartridges to have a flat frequency
response, as with a moving coil cartridge. Split pole pins were
invented by Ortofon, and were originally presented in the 500 series and
Super OM series. The 2M Red uses an improved engine, which provides an
increased output of 5.5mV. 2M red features a tipped elliptical diamond.