Ortofon 2M Mono Cartridge
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2M Mono features:
- an improved engine, which provides a high level of sonic accuracy
- R 18µm Nude Spherical stylus that is an optimal solution for playing mono microgroove LP vinyl records
- 2M Mono uses a strapped output to deliver the same output signal from both sets of pole pins. This effectively eliminates the need for mono-specific equipment, making it possible to enjoy true mono reproduction on any stereo playback system.
The 2M Series is designed for precise and accurate retrieval of the information in the record groove
The 2M Series is developed in conjunction with the Danish Industrial 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.
The name 2M was selected from among several ideas. We wanted a modern name that would be easy to pronounce and remember, and therefore an alphanumerical 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.
Each of the 2M Series cartridges has its own individual sonic expression, and all five models together represent the ensemble of five classic variations:
- 2M Mono SE, 2M Mono and 2M 78 are a true mono cartridges for playing mono vinyl records
- 2M Red is an all-purpose cartridge that delivers open, dynamic sound with a slight touch of warmth
- 2M Blue adds more dynamics and resolution, sounds more open and reproduces more details
- 2M Bronze adds even more details and resolution but in a very evenhanded way that pays respect to all elements
- 2M Black is the best of everything, true to the groove with resolution and accurate insight into each recording
The 2M series of cartridges features Ortofon’s trademark split pole pins, an invention that 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.
We have optimized the design for ease of mounting the cartridge, and the weight and size to fit the most common turntables on the market today. The 2M Series provides excellent compatibility when used in an assortment of playback systems and with a wide variety of phono preamps.
2M Mono Technical data
Output voltage at 1000 Hz, 5cm/sec. - 4 mV
Channel balance at 1 kHz -
Channel separation at 1 kHz -
Channel separation at 15 kHz -
Frequency range at - 3dB - 20-22.000 Hz
Frequency response - 20-20.000 Hz + 3 / - 1 dB
Tracking ability at 315Hz at recommended tracking force - 70 µm
Compliance, dynamic, lateral - 18 µm/mN
Stylus type - Nude Spherical
Stylus tip radius - R18 µm
Tracking force range - 1,6-2,0g (16-20 mN)
Tracking force, recommended - 1,8 g (18 mN)
Tracking angle - 20°
Internal impedance, DC resistance - 700 Ohm
Internal inductance - 350 mH
Recommended load resistance - 47 kOhm
Recommended load capacitance - 150-300 pF
Cartridge colour, body/stylus - Black/White
Cartridge weight without screws - 7,2 g
Replacement stylus unit - 2M Mono (interchangeable with 2M 78)
Review quotes 2M Mono
Positive Feedback May-June 2015
Reviewed by Tom Gibbs
"...the 2M Mono is a truly exceptional transducer. The sound from this true-mono cartridge just blows away the sound you get from a mono-via-stereo cartridge setup. Because the mono cartridge only deals with the groove signal in a single plane, the resultant sound is impressively quiet compared to the modulation of surface noise and groove geometry shortcomings you often must deal with in playback of mono sources from a stereo cartridge. The end result is that you can really hear very deeply into the music; the 2M Mono sounded magnificent right out of the box, and has only gotten better as it's broken in.
...I would say that the 2M Mono has an up-front, somewhat forward quality in it's presentation of the music; the images are sharply detailed, but never etched—and the music is never fatiguing to listen to. This cartridge comes with my highest recommendation...
...with the very reasonable, real-world asking price and remarkable performance of the baseline model, I don't see how it could get much better than this!"
Hi-Fi World August 2013
Reviewed by Tony Bolton
OUTSTANDING - simply the best!
"...I found this cartridge to be a very well thought out design, that complements the sonic presentation of the conventional 2M Series with an ability to play older, and sometimes more worn records, in an exemplary manner..."
- Last, quite punchy sound
- Very low surface noise
- Good detail retrieval
... The nude, spherical, 18 micrometer radius stylus is claimed by the manufacturers to be the optimum size for tracking the wider grooves of mono era records. It rides correctly in the groove, avoiding dirt at the bottom, unlike a smal/er microgroove stylus that rides too low..."