OM 1S

£30.00
  • Hi-Fi sound at an affordable price
  • Optimised sound reproduction
  • Easy tonearm matching

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How To Buy

As UK distributors for the brands we represent, our main focus is to give you all the information you need to help assist with your purchase. Once you have the information you need, we want to make the purchase process as simple as possible. So we give you up-to three options on how to buy our products.

Find Your Local Retailer

Our preferred option is for you to visit a nearby store and buy what you need locally. Our authorised stockists are some of the finest specialist hi-fi retailers in the country, and they're equipped to give you the best after-sales and set-up advice possible - all in person. To find your local retailer, either click the 'Buy In-Store' button on your product page for exactly the right recommendation, or head to our comprehensive Where To Buy tool.

Buy Now, Collect Locally

If you want the added convenience of only having to pop-in to store when you know the product you want has arrived, you can use our Click & Collect-style checkout process. With Buy Now, Collect Locally, your purchase takes place online and the product is then delivered direct to your local supporting retailer; ready for you to collect when you're ready. Click here to find out more about Buy Now, Collect Locally.

Buy Now

For smaller items, you can also have the ultimate convenience of purchasing directly through our website. The checkout process is entirely secure, so you can trust your information will be safe - and your desired product will arrive with you as quickly as possible.

Click here for full Terms & Conditions.

OM Series

The OM 1S has been developed to give as many people as possible access to the superior audio reproduction Ortofon are recognised for worldwide.

Based upon the established OM 5E design the OM 1S is an Optimum Match (OM) cartridge, which means it integrates onto most tonearms effortlessly. Supplied with a high-performance Spherical stylus, the body can be upgraded with improved styli from the OM range - offering affordable and convenient upgrades for the future. 

The Moving Magnet technology used for the generator system means most phono stages will easily work with the OM 1S. 

With the OM 1S cartridge you can instantly hear the improvement over inferior designs, bringing whole new dimensions to your musical performance.

Key Features:

  • Introductory overhead mount cartridge 
  • Optimised sound reproduction
  • Distortion-free playback
  • Spherical stylus profile
  • Easy tonearm matching
OMProducts

Technical Data

Please note, there is no direct replacement stylus for this unit; the nearest match is an Ortofon Stylus 5E, but any OM-series stylus will fit in this body, including the Stylus 78.

Output Voltage (at 1kHz, 5cm/sec): 4.5mV
Channel Balance at 1kHz: 2dB
Channel Separation at 1kHz: 20dB
Channel Separation at 15kHz: 12dB
Frequency Range (at -3dB): 20Hz - 20kHz
Frequency Response: 20Hz - 22kHz
Tracking Ability at 315Hz: Typically 60μm
Compliance, Dynamic, Lateral: 20μm / mN
Stylus Type: Spherical
Stylus Tip Radius R: 818μm
Tracking Force Range: 1.5 - 2.0g (16 - 20mN)
Recommended Tracking Force: 1.75g (17.5mN)
Tracking Angle: 20º
Internal Impedance / DC Resistance: 750Ω
Internal Inductance: 450mH
Recommended Load Resistance: 47kΩ
Recommended Load Capacitance: 200 - 500pF
Cartridge Colour Body / Stylus: Black / Black
Cartridge Weight: 5g
Replacement Stylus Unit: Stylus 5E
 
Note: We’re constantly updating our website to ensure all our listings are as accurate as possible. However, the images and text on this page can be subject to change without notice, and errors and omissions are excepted.

If you have any questions, please contact us.