- Classic Optimum Match (OM) hi-fi cartridge
- High-quality sound reproduction
- Body designed for easy tonearm matching
OM Series
The Ortofon OM Series encompasses three basic cartridges: OM 1S, OM 5E and Super OM 5E. With its classic design, the OM moving magnet cartridge has been featured on innumerable hi-fi turntables over many years, and the latest range gives turntable owners easy access to great sound at an affordable price.
The OM Series is the lowest-mass range of moving magnet (MM) cartridges offered by Ortofon, and combined with their minimal design allowing for easy mounting and alignment and clear, loud output for easy pairing with a phono stage, they fully justify their "Optimum Match" (OM) name.
As well as being easy to fit to any tonearm/headshell system, all OM cartridge bodies also benefit from a tiny, removable weight above the mounting bracket. For standard tonearms, leave the weight in place as usual. For low-mass tonearms, you have the ability to remove the weight, reducing the cartridge weigh to just 2.5g.
The OM 5E features an Elliptical (E) stylus that provides balanced and distortion-free playback. Elliptical diamonds are able to follow the groove oscillations more accurately than spherical diamonds due to their contoured shape. This results in better tracking and less distortion.
Features
- Classic Optimum Match (OM) hi-fi cartridge
- High-quality sound reproduction
- Elliptical stylus profile
- Easy tonearm matching
- High output for easy matching to a phono stage
- Easy stylus upgrades
Replacement Styli
Due to its longevity in the market, the OM range features a number of upgrade stylus options, including the Stylus 5E, Stylus 10, Stylus 20, Stylus 30, Stylus 40 and the 78 RPM Stylus 78.
Specifications
| Output Voltage (at 1kHz, 5cm/sec): |
4mV |
| Channel Balance at 1kHz: |
2dB |
| Channel Separation at 1kHz: |
22dB |
| Channel Separation at 15kHz: |
15dB |
| Frequency Range (at -3dB): |
20Hz - 25kHz |
| Frequency Response 20Hz - 20kHz: |
± 2dB |
| Tracking Ability at 315Hz: |
65μm |
| Compliance, Dynamic, Lateral: |
20μm / mN |
| Stylus Type: |
Elliptical |
| Stylus Tip Radius r / R: |
8 / 18μm |
| 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 |
