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Ortofon OMP40 Pmount Phono Cartridge | N.O.S.
Pictured With Stylus 10 For Reference Only

Ortofon OMP40 Pmount Phono Cartridge | N.O.S.

Plug-Mount Cartridge

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Ortofon OMP (T4P) + Stylus 40
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Ortofon OMP 40 Pmount Cartridge

The OMP40 is a Pmount magnetic cartridge (MM) with its Nude (natural) "Fritz Gyger 70" shaped stylus is a wise choice for hi end Pmount turntables. This product is the highest standard available when combining an Ortofon OMP series cartridge with Ortofon's Stylus 40. The Ortofon OMP 40 is designed for use with P-Mount (T4P) type tonearms as generally found on linear tracking type turntables. This item is 100% genuine Ortofon and is shipped in original Ortofon OMP packaging.

Ortofon has discontinued their Pmount line. They no longer support T4P.
Current supply (2018) is a N.O.S. buyout. Some of the genuine packaging is "shop worn" meaning it's been bouncing around drawers for decades.
Your new old stock cartridge may arrive in a worn Ortofon box. Some will ship repackaged in our own protective box.
We are installing a brand new current production Genuine Ortofon Stylus 40. You will not receive a N.O.S. stylus.
All will be professionally inspected both visually and electrically under the watchful eye of our senior electronics technician.

OMT = about 690 ohms
OMP = about 700 ohms
No further info could be found as of press time about why Ortofon labeled some of their T4P OM Pmount series cartridges OMT instead of OMP. The bodies are physically exactly the same. It may have been a private label offering.


OMP 40 OMP40

Output voltage at 1000 Hz,

4 mV

Channel balance at 1 kHz

2 dB

Channel separation at 1 kHz

22 dB

Channel separation at 15 kHz

15 dB

Frequency range at - 3dB

20-30.000 Hz

Frequency response

20-29.000 Hz ± 2 dB

FIM distortion at recommended
tracking force, DIN 45.542

< 1%

Tracking ability at 315Hz at
recommended tracking force

65 µm

Compliance, dynamic, lateral

25 µm/mN

Stylus type

Nude (natural diamond)
Stylus 40 Fritz Gyger 70

Stylus tip radius

r/R 8/18 µm

Equivalent stylus tip mass

0,5 mg

Tracking force range

1,25-1,75 g (12,5-17,5 mN)

Tracking force, recommended

1,25 g (12,5 mN)

Tracking angle


Internal impedance, DC resistance

Approx 700 Ohms

Internal inductance

450 mH

Recommended load resistance

47 kOhm

Recommended load capacitance

200-600 pF

Cartridge colour, body/stylus


Cartridge weight

6 g

5 Stars
OMP40 mount and stylus
Excellent "P" style cartridge as an upgrade from my older direct-drive Technics turntable. Using in a hi-fidelity setup and sounds great - clean records sound absolutely amazing.
Helpful?  3 of 3 Found Helpful
Reviewed by:  from Bellevue. on 3/30/2020

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