Ortofon 2M 78 User manual

accuracy in sound

2M 78 / 2M Mono / 2M Red / 2M Blue / 2M Bronze / 2M Black /
2M 78 Verso 2M Mono Verso 2M Red Verso 2M Blue Verso 2M Bronze Verso 2M Black Verso
Output voltage at 1 kHz, 5cm/sec. 4 mV 4 mV 5,5 mV 5,5 mV 5 mV 5 mV
Frequency range at -3 dB 20-20.000 Hz 20-22.000 Hz 20-22.000 Hz 20-25.000 Hz 20-29.000 Hz 20-31.000 Hz
Tracking ability at 315 Hz
at recommended tracking force 70 µm 70 µm 70 µm 80 µm 80 µm 80 µm
Compliance, dynamic, lateral 18 µm/mN 18 µm/mN 20 µm/mN 20 µm/mN 22 µm/mN 22 µm/mN
Stylus type Spherical Nude Spherical Elliptical Nude Elliptical Nude Fine Line Nude Shibata
Tracking force recommended* 1,8 g (18 mN) 1,8 g (18 mN) 1,8 g(18 mN) 1,8 g(18 mN) 1,5 g (15 mN) 1,5 g (15 mN)
Load resistance* 47 kOhm 47 kOhm 47 kOhm 47 kOhm 47 kOhm 47 kOhm
Load capacitance* 150-300 pF 150-300 pF 150-300 pF 150-300 pF 150-300 pF 150-300 pF
*Recommended

About the Ortofon 2M Series cartridges
Thank you for choosing the Ortofon 2M magnetic cartridge system for high performance
sound reproduction of your favourite analogue records.
Our company has been working with sound reproduction since 1918. Ortofon developed
its first phono cartridge in 1948, since then more than 300 different phono cartridges
have been developed and manufactured. Reflecting our extensive experience in
industrial design and technological know-how we have become the global leader in the
manufacture and supply of phono cartridges.
The 2M Series has been engineered in accordance with 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 comprises of two configurations: 2M for top mounting and 2M Verso
for bottom mounting. Each configuration consists of 2M 78, Mono, Red, Blue, Bronze
and Black models, which weight and size have been optimized to fit the most common
turntables on the market to-day.
As a result of reviewer listening tests we feel confident that you will appreciate and enjoy
the unique qualities of these cartridges.

Mounting the 2M cartridge
1. Remove stylus unit with stylus guard before working with leads and screws. Handle all
parts carefully. (fig. 1-2)
Fig. 2Fig. 1

2. Note colours and channel indications on rear side of the body for correct connection of
the tone arm leads. (fig. 3)
3. The Ortofon packing contains a pair of screws with a thread length of 5 mm. The
screws are to be used with headshell thicknesses of max. 3.5 mm. The 2M threaded
mounting plate has a thickness of 3 mm.
Fig. 3 Fig. 4
White L+
Red R+
Green RG
Blue LG
To check that you are using the right length of screws – please observe that screws must
not touch the body under the mounting plate – look into the small openings on each side
of the body. (fig. 4)
2M Verso bottom mount2M top mount

Do not tighten screws completely before the stylus unit has been remounted (fig. 1) – to
adjust stylus overhang refer to the record player or tone arm manual and cartridge
dimensions. (fig. 5)
Never overtighten screws and never use aluminium screws, as they can get stuck in the
threaded holes of the mounting plate.
Note: If excessively long screws are used and are pressing against the body material, this
may influence channel separation and could damage the cartridge body. In case
of such damage the Ortofon warranty will be void.
4. Adjust tone arm parallel to record surface, adjusting anti-skating and stylus pressure
according to cartridge recommended data and record player manual.
Fig. 5
6,0 mm
18,0 mm12,7 mm
18,5 mm
24,0 mm 18,5 mm3,5 mm
20˚
M2,5 mm

Stylus care and maintenance
To obtain optimal sound reproduction, remove dust from stylus regularly by using the
enclosed small brush.
If the headshell can be easily removed from the tone arm, we recommend that you turn
the diamond upwards and brush gently forward in the direction of the diamond tip along
the cantilever.
We do not recommend the use of propyl alcohol (or other cleaning fluids) for cleaning the
cartridge, as the diamond cement as well as the suspension system could be
seriously damaged and thereby ruin the cartridge.
Fig. 6

Stylus guard
Remove the stylus guard before use by holding at the front and rear of the guard and
gently pressing the rear while tilting it downwards. (fig. 7-8)
Fig. 7 Fig. 8

30-04/2012-800131-12
Ortofon A/S | Stavangervej 9 | DK-4900 Nakskov
Tel. [phone] | www.ortofon.com
Get more information
about 2M cartridges.