Ortofon OM PRO S Cartridge Pre-Mounted on SH-4 Headshell

Want an easy, affordable upgrade for your turntable? The Ortofon OM PRO S cartridge is pre-mounted to an SH-4 headshell for easy mounting.

The OM Pro S on the SH-4 Black headshell is a practical and convenient solution for those who wish direct and easy mounting and replacement on their S-shaped tonearm.


- Universal mount fitting a wide range of S-shaped tonearms
- Correct Baerwald alignment with the major part of tonearms with universal mount
- Spherical stylus minimizes scratching
- Solid cantilever can survive hectic activity at the turntable
WARNING: Cancer and Reproductive Harm - www.p65Warnings.ca.gov.

- Output voltage at 1000Hz, 5cm/sec.: 5 mV
- Channel balance at 1kHz: 2 dB
- Channel separation at 1kHz: 20 dB
- Channel separation at 15 kHz: 15 dB
- Frequency range at -3dB: 20-18.000 Hz
- Tracking ability at 315 Hz at recommended tracking force: 70 μm
- Compliance, dynamic lateral: 7 μm/m N
- Stylus type: Spherical
- Stylus tip radius: R 18 μm
- Tracking force range: 3 - 5 g
- Tracking force recommended: 4 g
- Tracking angle: 20°
- Internal impedance, DC resistance: 750 Ohm
- Internal inductance: 450 mH
- Recommended load resistance: 47 kOhm
- Recommended load capacitance: 200-600 pF
- OM cartridge weight: 5,0 g
- OM pre-mounted on SH-4 weight incl. screws: 14,5 g
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 0.25 lbs
Shipping Dimensions: 5 x 4 x 1 in
Manufacturer Part Number (MPN): Pro S OM Premount

For support or warranty questions, please contact the manufacturer:
Phone: 914-762-8646

Reviewers gave this product an overall rating of 4 out of 5 stars. (2 ratings)
Submitted September 1, 2019 by Lenny Madia in Clarksburg, WV

"Good for less"

Overall: 4 out of 5 stars
(see rating details)
Verified Customer zZounds has verified that this reviewer made a purchase from us.
I recently purchased this cartridge with headshell as a backup for my Audio Technica cartridge that came with my AT 120XUSB turntable. I thought it much better to include the headshell to avoid the obvious problems associated with installing a cartridge. My expectations were not high, and I bought it relying on the advice of one of zZounds tech advisers. I noted it appears to be a DJ cartridge, but he said it would sound fine with my set up. Upon arrival, I was impressed with Ortofon’s care in packaging. It was well protected and within a nice, if thin plastic case. And, It was easy to plug into the S shaped armOf my AT turntable. But the most important characteristic was to come; sound. I started with “Who’s Next” by The Who, Side 2. The songs are pretty varied for Rock; there are a few low key melodies, an acoustic guitar masterpiece, and a hard rocking final. I felt it a good test. I can say without doubt from the first notes the cartridge performed well, much better than expected. Since I had a very good elliptical AT cartridge, (an nmv95e) for comparison, I can actually say the Ortofon held its own. Indeed, the lower frequency was as pronounced as the AT and perhaps a bit better. The midrange was a little wanting but not much and barely noticeable. The highs were good, and accurate, but seemed they were a wanting. Not as bright as I like. Yet that’s more of a personable observation. The setup did fine with all vinyls. I have no complaints with the sound. However, read more I have slight misgivings with the suggested tracking force if 4 grams. That is twice as much as the AT cartridge, more than almost any hifi cartridge of which I am aware. So, one needs to be aware of that issue. All considered this is a fine sounding cartridge and concerning the price a great buy. I have no problem recommending this to anyone for a backup or for a newbie starter cartridge.

Musical Background:
I’m not s musician, but a hifi stereo owner.

Musical Style:
Primarily Rock, but I enjoy other genre such as Jazz, Classical, and folk.
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