Ortofon 2M 78 Premounted Moving Magnet Cartridge
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2M 78 Premounted cartridge for 78 rpm records (Single)
The 2M 78 supplied premounted for straightforward installation and easy replacement on S-shaped tonearms, designed for 78 rpm shellac records. Priced and sold individually.
Description
78 rpm playback, ready to fit
The 2M 78 Premounted is designed for listeners who want straightforward installation and easy replacement on an S-shaped tonearm. It is made for playing 78 rpm shellac records, with a spherical diamond sized for their wider grooves.
A strapped output delivers the same signal from both sets of pole pins, for true mono reproduction on a stereo system without mono-specific equipment. Published output is 4 mV.
- Premounted for S-shaped tonearms
- Designed for 78 rpm shellac records
- Spherical diamond, R 65 µm tip radius
- Strapped output for true mono on stereo systems
- Premounted cartridge weight 16.7 g
Specifications
| Model | 2M 78 Premounted |
| Pack Type | Single |
| Specifications | |
| Output voltage at 1 kHz, 5cm/sec | 4 mV |
| Frequency response 20 Hz - 20 kHz | 3 / - 1 dB |
| Tracking ability at 315 Hz | 70 µm |
| Compliance, dynamic, lateral | 18 µm/mN |
| Cantilever material | Aluminium |
| Stylus type | Spherical |
| Stylus tip radius | R 65 µm |
| Tracking force range | 1.6-2.0g (16-20 mN) |
| Tracking force, recommended | 1.8 g (18 mN) |
| Tracking angle | 20° |
| Internal impedance, DC resistance | 700 Ohm |
| Cartridge body material | Polymer and aluminum |
| Cartridge colour | Black/Grey |
| Cartridge weight | 7.2 g |
| Premounted cartridge weight | 16.7 g |
| Recommended load resistance | 47 kOhm |
| Internal inductance | 350 mH |
| Recommended load capacitance | 150-300 pF |
Caring for your Speakers and Amplifiers
To Keep your equipment safe these are some best practices to note. Please be advised that this is only to reduce the risk of misuse and is not an exhaustive list.
Speakers
- Speaker terminals are marked red and black, ensure your amplifier to the speakers are wired on the same colours
- Ensure no loose speaker wire from the red touches a loose wire from the black as this will lead to a short circuit and damage either the speaker, the amplifier or both.
- Not all speakers are designed to play at max volume, kindly consider the pairing of your amplifier and speakers
- Speaker cabinets cannot be replaced please handle with care.
AV & Stereo Amplifiers
- If your amplifier has HDMI ports, ensure all devices are off before plugging in the HDMI cable
- Turn off the amplifier before swoping out or adding speaker cable
- Amplifiers generate heat, place them in a well ventilated space. if possible avoid having anything on top of the unit.
- adding a surge protector can assist with power dips which are likely to damage your devices. Isotek and Furman are industry standard.
- Dusty environments can sometimes lead to accumulation of dust in the electronic components that might affect heat regulation
Shipping & Returns
- Free shipping on orders over R500 within the country.
- Standard delivery within 2–5 business days. Delays will be communicated. This might vary slightly depending on your location.
- Return items in original condition for a full refund. (unopened state)
- Returns that are open/unboxed will be subject to a handling fee. Refunds will only be processed after testing the unit.